exertion

Summary

Summary: Expenditure of energy by skeletal muscles. Intensity of exertion may be measured by rate of oxygen consumption, heat produced, or heart rate. Perceived exertion, a psychological measure of exertion, is included.

Top Publications

  1. ncbi Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta-analysis
    M Doherty
    Division of Sport and Exercise Science, University of Luton, Luton, Beds LU1 3JU, UK
    Scand J Med Sci Sports 15:69-78. 2005
  2. ncbi A comparison between three rating scales for perceived exertion and two different work tests
    E Borg
    Department of Psychology, Stockholm University, Stockholm, Sweden
    Scand J Med Sci Sports 16:57-69. 2006
  3. ncbi Criterion-related validity of the Borg ratings of perceived exertion scale in healthy individuals: a meta-analysis
    Michael J Chen
    Department of Biological Sciences, California State University, Los Angeles 90032, USA
    J Sports Sci 20:873-99. 2002
  4. ncbi Triggers of subarachnoid hemorrhage: role of physical exertion, smoking, and alcohol in the Australasian Cooperative Research on Subarachnoid Hemorrhage Study (ACROSS)
    Craig Anderson
    Clinical Trials Research Unit, University of Auckland, New Zealand
    Stroke 34:1771-6. 2003
  5. ncbi Validation of the Adult OMNI Scale of perceived exertion for walking/running exercise
    Alan C Utter
    Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, North Carolina 28608, USA
    Med Sci Sports Exerc 36:1776-80. 2004
  6. ncbi Children's OMNI Scale of Perceived Exertion: walking/running evaluation
    Alan C Utter
    Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, NC 28608, USA
    Med Sci Sports Exerc 34:139-44. 2002
  7. ncbi Concurrent validation of the OMNI perceived exertion scale for resistance exercise
    Robert J Robertson
    Center for Exercise and Health Fitness Research, Department of Health and Physical Education, University of Pittsburgh, PA 15261, USA
    Med Sci Sports Exerc 35:333-41. 2003
  8. ncbi Observational assessment of forceful exertion and the perceived force demands of daily activities
    Matthew M Marshall
    Department of Industrial and Systems Engineering, Rochester Institute of Technology, Rochester, New York 14623, USA
    J Occup Rehabil 14:281-94. 2004
  9. ncbi Seven days' around the clock exhaustive physical exertion combined with energy depletion and sleep deprivation primes circulating leukocytes
    Yngvar Gundersen
    Division of Protection, Norwegian Defence Research Establishment, Forsvarets forskningsinstitutt Avdeling B, N 2027, Kjeller, Norway
    Eur J Appl Physiol 97:151-7. 2006
  10. ncbi Effect of carbohydrate and prolonged exercise on affect and perceived exertion
    Susan H Backhouse
    Carnegie Research Institute, Carnegie Faculty of Sport and Education, Leeds Metropolitan University, Leeds, United Kingdom
    Med Sci Sports Exerc 37:1768-73. 2005

Detail Information

Publications234 found, 100 shown here

  1. ncbi Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta-analysis
    M Doherty
    Division of Sport and Exercise Science, University of Luton, Luton, Beds LU1 3JU, UK
    Scand J Med Sci Sports 15:69-78. 2005
    ..study was to use the meta-analytic approach to examine the effects of caffeine ingestion on ratings of perceived exertion (RPE). Twenty-one studies with 109 effect sizes (ESs) met the inclusion criteria...
  2. ncbi A comparison between three rating scales for perceived exertion and two different work tests
    E Borg
    Department of Psychology, Stockholm University, Stockholm, Sweden
    Scand J Med Sci Sports 16:57-69. 2006
    ..In the first study, comparing the Borg Ratings of Perceived Exertion (RPE) and Category scales with Ratio properties (CR10) scales, 40 healthy subjects (12 men and eight women for ..
  3. ncbi Criterion-related validity of the Borg ratings of perceived exertion scale in healthy individuals: a meta-analysis
    Michael J Chen
    Department of Biological Sciences, California State University, Los Angeles 90032, USA
    J Sports Sci 20:873-99. 2002
    The literature related to Borg's ratings of perceived exertion (RPE) scale has revealed inconsistencies about the strength of the relationship between ratings of perceived exertion and various physiological criterion measures, such as ..
  4. ncbi Triggers of subarachnoid hemorrhage: role of physical exertion, smoking, and alcohol in the Australasian Cooperative Research on Subarachnoid Hemorrhage Study (ACROSS)
    Craig Anderson
    Clinical Trials Research Unit, University of Auckland, New Zealand
    Stroke 34:1771-6. 2003
    Unaccustomed strenuous physical exertion can trigger myocardial infarction, but little is known about the mechanisms precipitating subarachnoid hemorrhage (SAH).
  5. ncbi Validation of the Adult OMNI Scale of perceived exertion for walking/running exercise
    Alan C Utter
    Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, North Carolina 28608, USA
    Med Sci Sports Exerc 36:1776-80. 2004
    Concurrent and construct validity of the OMNI-Walk/Run Scale of Perceived Exertion was examined using young adult women and men (18-36 yr).
  6. ncbi Children's OMNI Scale of Perceived Exertion: walking/running evaluation
    Alan C Utter
    Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, NC 28608, USA
    Med Sci Sports Exerc 34:139-44. 2002
    The Children's OMNI-walk/run Scale of Perceived Exertion (category range, 0-10) was evaluated using male and female children (6-13 yr of age) during a treadmill graded exercise test.
  7. ncbi Concurrent validation of the OMNI perceived exertion scale for resistance exercise
    Robert J Robertson
    Center for Exercise and Health Fitness Research, Department of Health and Physical Education, University of Pittsburgh, PA 15261, USA
    Med Sci Sports Exerc 35:333-41. 2003
    ..Rating of perceived exertion for the active muscles (RPE-AM) was measured during the mid and final repetition and RPE for the overall body (..
  8. ncbi Observational assessment of forceful exertion and the perceived force demands of daily activities
    Matthew M Marshall
    Department of Industrial and Systems Engineering, Rochester Institute of Technology, Rochester, New York 14623, USA
    J Occup Rehabil 14:281-94. 2004
    ..This list may be used to assist health care practitioners and patients convey the force demands required of occupational tasks as well as for evaluating the diminished strength of the patient...
  9. ncbi Seven days' around the clock exhaustive physical exertion combined with energy depletion and sleep deprivation primes circulating leukocytes
    Yngvar Gundersen
    Division of Protection, Norwegian Defence Research Establishment, Forsvarets forskningsinstitutt Avdeling B, N 2027, Kjeller, Norway
    Eur J Appl Physiol 97:151-7. 2006
    Both exhaustive physical exertion and starvation have been reported to induce depression of immune function...
  10. ncbi Effect of carbohydrate and prolonged exercise on affect and perceived exertion
    Susan H Backhouse
    Carnegie Research Institute, Carnegie Faculty of Sport and Education, Leeds Metropolitan University, Leeds, United Kingdom
    Med Sci Sports Exerc 37:1768-73. 2005
    It has been reported that perceptions of exertion are attenuated during prolonged cycle exercise, following CHO ingestion...
  11. ncbi No spontaneous second wind in muscle phosphofructokinase deficiency
    Ronald G Haller
    Neuromuscular Center, Institute for Exercise and Environmental Medicine of Presbyterian Hospital, Dallas, TX 75231, USA
    Neurology 62:82-6. 2004
    ..Muscle phosphofructokinase deficiency (PFKD) blocks the metabolism of muscle glycogen and blood glucose. The authors inquired whether the additional restriction in glucose metabolism in PFKD prevents a spontaneous second wind...
  12. ncbi Validation of the adult OMNI scale of perceived exertion for cycle ergometer exercise
    Robert J Robertson
    Center for Exercise and Health Fitness Research, University of Pittsburgh, PA 15261, USA
    Med Sci Sports Exerc 36:102-8. 2004
    Concurrent and construct validity of the OMNI-Cycle Scale of Perceived Exertion were examined using young adult women and men (18-32 yr).
  13. pmc The rate of heat storage mediates an anticipatory reduction in exercise intensity during cycling at a fixed rating of perceived exertion
    Ross Tucker
    University of Cape Town Medical Research Council UCT MRC Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, South Africa
    J Physiol 574:905-15. 2006
    ..intensity in hot environments when exercise is performed at a predetermined, fixed subjective rating of perceived exertion (RPE)...
  14. ncbi Coordination of strength exertion during the chair-rise movement in very old people
    Ulrich Lindemann
    Robert Bosch Krankenhaus, Geriatrische Rehabilitation, Auerbachstr 110, Stuttgart, Germany
    J Gerontol A Biol Sci Med Sci 62:636-40. 2007
    ..These coordinative aspects have received less attention. This study aims to analyze differences in STS performance in older people based on measures that are derived from ground reaction forces (GRFs) during STS transfer...
  15. ncbi Aging of the respiratory system: impact on pulmonary function tests and adaptation to exertion
    Jean Paul Janssens
    Outpatient Section of the Division of Pulmonary Diseases, Geneva University Hospital, 1211 Geneva 14, Switzerland
    Clin Chest Med 26:469-84, vi-vii. 2005
    ..In spite of these changes, the respiratory system remains capable of maintaining adequate gas exchange at rest and during exertion during the entire lifespan, with only a slight decrease in Pa(O2) and no significant change in Pa(CO2).
  16. ncbi Carbohydrate ingestion during prolonged high-intensity intermittent exercise: impact on affect and perceived exertion
    S H Backhouse
    Carnegie Research Institute, Leeds Metropolitan University, Leeds, UK
    Scand J Med Sci Sports 17:605-10. 2007
    ..to determine the effects of ingesting a carbohydrate (CHO) solution on affective states and rating of perceived exertion (RPE) during prolonged intermittent high-intensity exercise...
  17. pmc Activity patterns, blood lactate concentrations and ratings of perceived exertion during a professional singles tennis tournament
    Alberto Mendez-Villanueva
    Faculty of Physical Activity and Sport Sciences, Department of Didactics, University of Alcala, Madrid, Spain
    Br J Sports Med 41:296-300; discussion 300. 2007
    To examine the game characteristics and physiological (ie, blood lactate concentration) and perceptual (ie, rating of perceived exertion, RPE) responses during actual tennis competition in professional performers.
  18. ncbi Building-site camps and extended work hours: A two-week monitoring of self-reported physical exertion, fatigue, and daytime sleepiness
    Roger Persson
    National Institute of Occupational Health, Copenhagen, Denmark
    Chronobiol Int 23:1329-45. 2006
    ..work shifts was associated with a build-up of increased complaints of poor sleep, daytime sleepiness, physical exertion, and fatigue across a two-week work cycle. Two groups of construction workers were examined...
  19. ncbi Altered secretion of growth hormone and luteinizing hormone after 84 h of sustained physical exertion superimposed on caloric and sleep restriction
    Bradley C Nindl
    Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
    J Appl Physiol (1985) 100:120-8. 2006
    ..This study examined the hypothesis that 84 h of sustained physical exertion with caloric and sleep restriction alters the secretion of GH and LH...
  20. ncbi Exertion dependent alternations in force fluctuation and limb acceleration during sustained fatiguing contraction
    Chien Ting Huang
    Department of Physical Therapy, College of Medicine, National Cheng Kung University, 701, Tainan, Taiwan
    Eur J Appl Physiol 97:362-71. 2006
    The study was conducted to contrast exertion-dependent changes in electromyography (EMG), force fluctuation (FF), and limb acceleration (LA) during isometric contraction to attain a versatile picture of muscle fatigue...
  21. ncbi Myocardial heat shock protein 70 expression in young and old rats after identical exercise programs
    Joseph W Starnes
    Department of Kinesiology and Health Education, University of Texas, Austin, TX, USA
    J Gerontol A Biol Sci Med Sci 60:963-9. 2005
    ..Our results indicate an age-related decrease in HSP70 production in heart and liver following chronic exercise. Furthermore, the aged heart does not increase its antioxidant enzyme defenses to compensate for the HSP70 deficit...
  22. ncbi Validation of the Children's OMNI-Resistance Exercise Scale of perceived exertion
    Robert J Robertson
    Center for Exercise and Health Fitness Research, University of Pittsburgh, Pittsburgh, PA 15261, USA
    Med Sci Sports Exerc 37:819-26. 2005
    ..examined concurrent validity of the Children's OMNI-Resistance Exercise Scale (OMNI-RES) of perceived exertion for 10- to 14-yr-old females (N = 25) and males (N = 25) performing unilateral biceps curl (BC) and knee ..
  23. ncbi Perceived exertion : influence of age and cognitive development
    Alain Groslambert
    Laboratory of Sport Sciences, FEMTO UFR STAPS de Besançon, Besancon, France
    Sports Med 36:911-28. 2006
    Because little is known about the effects of aging on perceived exertion, the aim of this article is to review the key findings from the published literature concerning rating of perceived exertion (RPE) in relation to the developmental ..
  24. ncbi Effect of work duration on physiological and rating scale of perceived exertion responses during self-paced interval training
    Stephen Seiler
    Department of Health and Sport, Agder University College, Kristiansand, Norway
    Scand J Med Sci Sports 14:318-25. 2004
    This study compared running velocity, physiological responses, and perceived exertion during self-paced interval training bouts differing only in work bout duration...
  25. ncbi Energy cost and muscular activity required for leg swing during walking
    Jinger S Gottschall
    Department of Integrative Physiology, University of Colorado, Boulder, USA
    J Appl Physiol (1985) 99:23-30. 2005
    ..Thus our data indicate that approximately 10% of the net metabolic cost of walking is required to initiate and propagate leg swing. Additionally, the hip flexor muscles contribute to the initiation and propagation leg swing...
  26. ncbi Perceived exertion is elevated in old age during an isometric fatigue task
    Brian L Allman
    Canadian Centre for Activity and Aging, School of Kinesiology, Faculty of Health Sciences, The University of Western Ontario, N6A 3K7, London, ON, Canada
    Eur J Appl Physiol 89:191-7. 2003
    The purposes of this study were to compare the ratings of perceived exertion (RPE) of young [25 (1) years] and old men [84 (1) years] during intermittent (3 s on, 2 s off) voluntary isometric contractions of the elbow flexors at 60% of ..
  27. ncbi Perceived and measured levels of exertion of patients with chronic back pain exercising in a hydrotherapy pool
    Karen L Barker
    Physiotherapy Research Unit, Nuffield Orthopaedic Centre NHS Trust, Oxford, UK
    Arch Phys Med Rehabil 84:1319-23. 2003
    To investigate the efficacy of using ratings of perceived exertion (RPEs) to regulate exercise intensity for patients with chronic back pain while they undergo hydrotherapy.
  28. pmc Working hours spent on repeated activities and prevalence of back pain
    H R Guo
    Graduate Institute of Environmental and Occupational Health, Medical College, National Cheng Kung University, Taiwan
    Occup Environ Med 59:680-8. 2002
    ..To evaluate the associations between working hours spent on repeated activities and back pain, data gathered through the 1988 National Health Interview Survey were analysed. The data were also used to identify high risk occupations...
  29. ncbi Work-time profile, blood lactate concentration and rating of perceived exertion in the 1998 Greco-Roman Wrestling World Championship
    Johnny Nilsson
    University College of Physical Education and Sports, Stockholm, Sweden
    J Sports Sci 20:939-45. 2002
    The aim of this study was to examine work-time profiles, blood lactate concentrations and perceived exertion among Greco-Roman wrestlers in the 1998 World Championship...
  30. ncbi Spontaneous pneumopericardium due to exertion
    Gerald W Westermann
    Innere Medizin D, Medizinische Poliklinik, Westfalische Wilhelms Universitat Munster, Munster, Germany
    South Med J 96:50-2. 2003
    ..All physicians should be aware of pneumopericardium as a possible cause of chest pain, especially when no trauma is visible. Pneumopericardium may also be an occasional complication of pneumothorax and pneunomediastinum...
  31. ncbi Are nurses able to assess fatigue, exertion fatigue and types of fatigue in residential home patients?
    Lucas J Tiesinga
    Northern Centre for Healthcare Research and Department of Nursing Science at the University of Groningen, The Netherlands
    Scand J Caring Sci 16:129-36. 2002
    Are nurses able to assess fatigue, exertion fatigue and types of fatigue in residential home patients? Although fatigue is recognized as a subjective, generalized, extensive and disabling health care problem with a relatively high ..
  32. ncbi Prediction of maximal oxygen uptake from the ratings of perceived exertion and heart rate during a perceptually-regulated sub-maximal exercise test in active and sedentary participants
    James Faulkner
    School of Sport and Health Sciences, St Luke s Campus, University of Exeter, Heavitree Road, Exeter, EX1 2LU, UK
    Eur J Appl Physiol 101:397-407. 2007
    ..accuracy of predicting maximal oxygen uptake (VO2max) from sub-maximal heart rate (HR) and ratings of perceived exertion (RPE) values was moderated by gender and habitual activity...
  33. ncbi Perceived exertion and maximal quadriceps femoris muscle strength during dynamic knee extension exercise in young adult males and females
    Danny M Pincivero
    Human Performance and Fatigue Laboratory, Department of Kinesiology, The University of Toledo, Mail Stop 201, OH 43606, Toledo, USA
    Eur J Appl Physiol 89:150-6. 2003
    The objectives of the present study were to: (1) examine perceived exertion across different target voluntary-contraction intensities; (2) compare perceived exertion ratings with actual target intensities, and (3) compare perceived ..
  34. ncbi A comparison of AME and CR100 for scaling perceived exertion
    Elisabet Borg
    Department of Psychology, Stockholm University, Sweden
    Acta Psychol (Amst) 109:157-75. 2002
    ..In an experiment on perceived exertion, CR100 was compared with Absolute Magnitude Estimation (AME)...
  35. ncbi Relationship between perceived exertion and mean power frequency of the EMG signal from the upper trapezius muscle during isometric shoulder elevation
    A Hummel
    Institute of Hygiene and Applied Physiology, Swiss Federal Institute of Technology Zurich, 8092, Zurich, Switzerland
    Eur J Appl Physiol 95:321-6. 2005
    The aim of the study was to investigate the relationship between a fatigue-induced increase of perceived exertion in the neck with a decrease of mean power frequency (MPF) in the surface electromyography (sEMG) signal during repeated ..
  36. ncbi Effect of distance feedback on pacing strategy and perceived exertion during cycling
    Yumna Albertus
    MRC UCT Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, the University of Cape Town and the Sports Science Institute of SOUTH AFRICA, Cape Town, South Africa
    Med Sci Sports Exerc 37:461-8. 2005
    The aim of this study was to investigate whether providing incorrect distance feedback would alter pacing strategies, perceived exertion, and heart rate during 20-km cycling time trials (TT).
  37. ncbi Cerebral carbohydrate cost of physical exertion in humans
    Mads K Dalsgaard
    Department of Anesthesia, Rigshospitalet 2041, Blegdamsvej 9, DK 2100 Copenhagen Ø, Denmark
    Am J Physiol Regul Integr Comp Physiol 287:R534-40. 2004
    ..08). A time-dependent cerebral surplus uptake of carbohydrate was not substantiated and, consequently, exhaustive exercise involves a brain surplus carbohydrate uptake of a magnitude comparable with its glycogen content...
  38. ncbi Suppression of heart rate variability after supramaximal exertion
    W Niewiadomski
    Department of Applied Physiology, Medical Research Center, Polish Academy of Sciences, 5 Pawinski Street, 02 106 Warsaw, Poland
    Clin Physiol Funct Imaging 27:309-19. 2007
    ..After 24 and 48 h, no exercise effects were traceable. We hypothesize that (i) anaerobic exertion is followed by sustained inhibition of vagal activity, (ii) parasympathetic system plays dominant role in ..
  39. ncbi The effect of antecedent fatiguing activity on the relationship between perceived exertion and physiological activity during a constant load exercise task
    Roger Eston
    School of Sport and Health Sciences, University of Exeter, St Luke s Campus, Exeter, United Kingdom
    Psychophysiology 44:779-86. 2007
    This study assessed the relationship between the rate of change of the rating of perceived exertion (RPE), physiological activity, and time to volitional exhaustion...
  40. ncbi Quantitation of resistance training using the session rating of perceived exertion method
    Travis W Sweet
    Department of Exercise and Sport Science, University of Wisconsin La Crosse, La Crosse, WI 54601, USA
    J Strength Cond Res 18:796-802. 2004
    The purpose of this study was to apply the session rating of perceived exertion (RPE) method, which is known to work with aerobic training, to resistance training. Ten men (26.1 +/- 10.2 years) and 10 women (22.2 +/- 1...
  41. ncbi Influence of exercise order on the number of repetitions performed and perceived exertion during resistance exercises
    Roberto Simão
    Physical Education Department, Gama Filho University, Rio de Janeiro, Brazil
    J Strength Cond Res 19:152-6. 2005
    ..This decrease in the number of repetitions performed was especially apparent in the third set when an exercise was performed last in an exercise sequence...
  42. ncbi Effect of naloxone on perceived exertion and exercise capacity during maximal cycle ergometry
    Anthony L Sgherza
    Department of Physical Education and Exercise Science, Brooklyn College, Brooklyn, NY 11210, USA
    J Appl Physiol 93:2023-8. 2002
    ..Perceived exertion rating (0-10 scale) and venous samples for lactate were obtained each minute...
  43. ncbi Computer mouse use in two different hand positions: exposure, comfort, exertion and productivity
    Ewa Gustafsson
    Department of Occupational Medicine, Sahlgrenska Academy at Goteborg University, St Sigfridsgatan 85, Göteborg 412 66, Sweden
    Appl Ergon 34:107-13. 2003
    The aim of this study was to determine whether there are differences in exposure, comfort, exertion and productivity between a neutral and a pronated hand position when using a computer mouse...
  44. pmc GLUT1 mutations are a cause of paroxysmal exertion-induced dyskinesias and induce hemolytic anemia by a cation leak
    Yvonne G Weber
    Neurologische Klinik and Institut für Anatomie und Zellbiologie, Universitat Ulm, Ulm, Germany
    J Clin Invest 118:2157-68. 2008
    ..In this study, we describe a family with paroxysmal exertion-induced dyskinesia (PED) over 3 generations...
  45. ncbi Influence of exercise order on the number of repetitions performed and perceived exertion during resistance exercise in women
    Roberto Simão
    Rio de Janeiro Federal University, Rio de Janeiro, Brazil
    J Strength Cond Res 21:23-8. 2007
    ..resistance exercise orders on the number of repetitions performed to failure and on the ratings of perceived exertion (RPE) in trained women...
  46. ncbi Perceived exertion of physical activity: negative association with self-rated fitness
    Mette Aadahl
    Research Centre for Prevention and Health, Glostrup University Hospital, Glostrup, Denmark
    Scand J Public Health 35:403-9. 2007
    ..As health benefits from physical activity are coupled to the relative intensity of the physical effort, we wanted to relate perceived exertion to self-reported fitness.
  47. ncbi An assessment of the validity and reliability of two perceived exertion rating scales among Hong Kong children
    Mee Lee Leung
    Department of Physical Education, Hong Kong Baptist University
    Percept Mot Skills 95:1047-62. 2002
    ..the validity and reliability of the Chinese-translated (Cantonese) versions of the Borg 6-20 Rating of Perceived Exertion (RPE) scale and the Children's Effort Rating Table (CERT) during continuous incremental cycle ergometry with 10- ..
  48. ncbi Physical exertion, exercise, and sudden cardiac death in women
    William Whang
    Cardiovascular Division, Massachusetts General Hospital, Boston, USA
    JAMA 295:1399-403. 2006
    ..Exercise is associated with a lower risk of cardiovascular events but may transiently increase the risk of ventricular arrhythmias. Its short-term and long-term associations with risk of sudden cardiac death among women are unclear...
  49. pmc Relation between physical exertion and heart rate variability characteristics in professional cyclists during the Tour of Spain
    C P Earnest
    The Cooper Institute Center for Human Performance and Nutrition Research, 12330 Preston Road, Dallas, TX 75244, USA
    Br J Sports Med 38:568-75. 2004
    ..Continued exposure to prolonged periods of intense exercise may unfavourably alter neuroendocrine, neuromuscular, and cardiovascular function...
  50. ncbi Anchoring procedures in reliability of ratings of perceived exertion during resistance exercise
    Kristen M Lagally
    School of Kinesiology and Recreation, Illinois State University, Normal, IL 61790, USA
    Percept Mot Skills 98:1285-95. 2004
    Although the validity of perceived exertion as a method of monitoring the intensity of resistance exercise has been established, little is known about the test-retest reliability of ratings of perceived exertion during resistance exercise...
  51. ncbi Influence of the age on self regulation of static grip forces from perceived exertion values
    A Groslambert
    Laboratoire des Sciences du Sport, UFRSTAPS de Besançon, 2 Place Saint Jacques, Bat Bichat, 25000, Besancon, France
    Neurosci Lett 325:52-6. 2002
    ..was to examine the ability of subjects of different ages to produce different forces based on their perceived exertion during a grip force task by using a test and a randomised re-test procedure. Eighteen young children (aged 6...
  52. ncbi Validity and reliability of a Cantonese-translated rating of perceived exertion scale among Hong Kong adults
    Raymond W Leung
    Physical Education Department, University of Southern Indiana, Evansville 47712, USA
    Percept Mot Skills 98:725-35. 2004
    ..assessed the validity and reliability of the Cantonese-translated version of the Borg 6-20 Rating of Perceived Exertion (RPE) scale during continuous incremental cycle ergometry by Hong Kong adults...
  53. ncbi Functional walk tests in individuals with stroke: relation to perceived exertion and myocardial exertion
    Janice J Eng
    School of Rehabilitation Sciences, University of British Columbia, Vancouver, BC, Canada
    Stroke 33:756-61. 2002
    ..The purpose of this study was to determine the relationship between these walk tests and measures of exertion (perceived and myocardial), in addition to impairment in individuals with stroke...
  54. ncbi Self-efficacy and perceived exertion of girls during exercise
    Nola J Pender
    School of Nursing, University of Michigan, Ann Arbor, 48109 0482, USA
    Nurs Res 51:86-91. 2002
    ..An important national goal in Healthy People 2010 is to reduce the high prevalence of sedentary lifestyles and resultant overweight and obesity among girls...
  55. ncbi Ratings of perceived exertion and muscle activity during the bench press exercise in recreational and novice lifters
    Kristen M Lagally
    Biomechanics Laboratory, School of Kinesiology and Recreation, Illinois State University, Normal, Illinois 61790, USA
    J Strength Cond Res 18:359-64. 2004
    This study examined ratings of perceived exertion (RPE) and electromyography (EMG) during resistance exercise in recreational and novice lifters. Fourteen novice (age = 21.5 +/- 1.5 years) and 14 recreationally trained (age = 21.9 +/- 2...
  56. pmc Effect of anticipation during unknown or unexpected exercise duration on rating of perceived exertion, affect, and physiological function
    D A Baden
    University of Southampton, Southampton, Hampshire, UK
    Br J Sports Med 39:742-6; discussion 742-6. 2005
    To determine the effect of unknown exercise duration and an unexpected increase in exercise duration on rating of perceived exertion (RPE), affect, and running economy during treadmill running.
  57. ncbi Role of exertion or emotion as inciting events for acute aortic dissection
    Ioannis S Hatzaras
    Section of Cardiothoracic Surgery, Yale University School of Medicine, New Haven, CT, USA
    Am J Cardiol 100:1470-2. 2007
    ..In conclusion, severe physical and emotional stress may precipitate AAD, presumably on the basis of a transient, severe hypertensive reaction...
  58. ncbi Gender differences in perceived exertion during fatiguing knee extensions
    Danny M Pincivero
    Department of Kinesiology, The University of Toledo, OH 43606, USA
    Med Sci Sports Exerc 36:109-17. 2004
    To examine gender differences in knee extensor strength, fatigue, and perceived exertion during a single set of continuous dynamic knee extensor contractions.
  59. ncbi Perceived exertion in physical activity and risk of gestational diabetes mellitus
    Carole B Rudra
    Center for Perinatal Studies, Swedish Medical Center, 747 Broadway, Seattle, WA 98122, USA
    Epidemiology 17:31-7. 2006
    ..Expanding on 2 previously published analyses of absolute exertion measures (time spent and energy expended), we assessed the relation between perceived exertion during usual ..
  60. ncbi Exercise does not feel the same when you are overweight: the impact of self-selected and imposed intensity on affect and exertion
    P Ekkekakis
    Department of Health and Human Performance, Iowa State University, IA 50011, USA
    Int J Obes (Lond) 30:652-60. 2006
    ....
  61. ncbi Triggers of nonfatal myocardial infarction in Costa Rica: heavy physical exertion, sexual activity, and infection
    Ana Baylin
    Department of Community Health, Brown University, 121 South Main Street, Providence, RI 02903, USA
    Ann Epidemiol 17:112-8. 2007
    ..There are no data for factors that could trigger myocardial infarction (MI) in the context of lifestyles in developing countries...
  62. ncbi The effects of rest interval length on ratings of perceived exertion during dynamic knee extension exercise
    Staci Woods
    Department of Physical Therapy, Eastern Washington University, Cheney 99005, USA
    J Strength Cond Res 18:540-5. 2004
    The objective of this study was to examine the effects of rest interval length on perceived exertion and during 3 sets of 10 inertial knee extension repetitions...
  63. ncbi Maximal dynamic grip force and wrist torque: the effects of gender, exertion direction, angular velocity, and wrist angle
    Jonathan L Morse
    Biological Systems Engineering, University of Nebraska, Lincoln, NE 68588, USA
    Appl Ergon 37:737-42. 2006
    The objective of this study was to examine the effects of gender, exertion direction, angular velocity and wrist angle on simultaneous grip force and wrist torque under the isokinetic condition...
  64. ncbi Physical exertion at work and the risk of preterm delivery and small-for-gestational-age birth
    Lisa A Pompeii
    Department of Epidemiology, School of Public Health, University of North Carolina, Chapel Hill, USA
    Obstet Gynecol 106:1279-88. 2005
    ..To assess whether exposure to standing, lifting, night work, or long work hours during 3 periods of pregnancy are associated with an increased risk of preterm or small-for-gestational-age birth...
  65. ncbi Fatigue-related changes in torque output and electromyographic parameters of trunk muscles during isometric axial rotation exertion: an investigation in patients with back pain and in healthy subjects
    Joseph K F Ng
    Department of Physiotherapy, University of Queensland, Brisbane, Queensland, Australia
    Spine (Phila Pa 1976) 27:637-46. 2002
    ..A cross-sectional case-control study...
  66. ncbi Influence of aerobic fitness level on measured and estimated perceived exertion during exhausting runs
    M Garcin
    Laboratoire d Etudes de la Motricite Humaine, Faculte des Sciences du Sport et de l Education Physique, Universite de Lille, France
    Int J Sports Med 25:270-7. 2004
    The purpose of the present investigation was 1) to study the effects of fitness level on perceived exertion (RPE) and estimated time limit (ETL) scales during exhausting runs, and 2) to predict time to exhaustion from RPE or ETL values ..
  67. ncbi Repeated spinal flexion modulates the flexion-relaxation phenomenon
    James P Dickey
    Human Biology and Nutritional Sciences, University of Guelph, Guelph, Ont, Canada N1G 2W1
    Clin Biomech (Bristol, Avon) 18:783-9. 2003
    ..To determine if repeated spinal flexion and loading modulate the deactivation of lumbar muscles near full flexion (flexion-relaxation)...
  68. ncbi Changes in muscle activity and perceived exertion during exercises performed on a swiss ball
    Paul Marshall
    Department of Sport and Exercise Science, University of Auckland, Tamaki Campus, Private Bag 92019, Auckland, New Zealand
    Appl Physiol Nutr Metab 31:376-83. 2006
    ..the surface conditions for muscle activity during the squat exercise; however, individuals had lower perceived exertion for the swiss ball squat...
  69. ncbi Identifying offline muscle strength profiles sufficient for short-duration FES-LCE exercise: a PAC learning model approach
    Randy D Trumbower
    Sensory Motor Performance Program, Rehabilitation Institute of Chicago and Northwestern University, Storrs, CT, USA
    J Clin Monit Comput 20:209-20. 2006
    ..However, there exists no systematic approach to predict whether an individual has sufficient thigh muscle strength necessary for FES-LCE exercise...
  70. pmc Contribution of non-extensor muscles of the leg to maximal-effort countermovement jumping
    Akinori Nagano
    Computational Biomechanics Unit, RIKEN, Hirosawa 2 1, Wako, Saitama, 351 0198, Japan
    Biomed Eng Online 4:52. 2005
    ..Although it is difficult to address this type of question through experimental procedures, the methodology of computer simulation can be a powerful tool...
  71. ncbi The relationship between perceived exertion and physiologic indicators of stress during graded arm exercise in persons with spinal cord injuries
    John E Lewis
    Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL 33136, and The National Rehabilitation Hospital, Washington, DC, USA
    Arch Phys Med Rehabil 88:1205-11. 2007
    ..To examine the relationship between psychologic cues of somatic stress and physiologic responses to exercise in persons with paraplegia and tetraplegia...
  72. ncbi Use of heart rate reserve and rating of perceived exertion to prescribe exercise intensity in diabetic autonomic neuropathy
    Sheri R Colberg
    Old Dominion University, Norfolk, Virginia 23529, USA
    Diabetes Care 26:986-90. 2003
    ..the purpose of this study was to examine the validity of using either percent of heart rate reserve (HRR) or a rating of perceived exertion (RPE) scale to prescribe exercise intensity in diabetic individuals both with and without DAN.
  73. ncbi Force, work and power output of lower limb muscles during human maximal-effort countermovement jumping
    Akinori Nagano
    Computational Biomechanics Unit, RIKEN, Hirosawa 2 1, Wako, Saitama 351 0198, Japan
    J Electromyogr Kinesiol 15:367-76. 2005
    ..Joint flexor muscles such as m. iliopsoas, m. biceps femoris short head and m. tibialis anterior were activated in the beginning of the motion with an effect of facilitating the generation of a countermovement...
  74. ncbi The effect of gait speed and gender on perceived exertion, muscle activity, joint motion of lower extremity, ground reaction force and heart rate during normal walking
    Min Chi Chiu
    Department of Industrial Engineering and Engineering Management, National Tsing Hua University, Hsinchu 300, Taiwan, ROC
    Gait Posture 25:385-92. 2007
    This study aims to investigate the effect of speed and gender on subjective perceived exertion, muscle activity, joint motion of lower extremity, vertical ground reaction force and heart rate during barefoot walking...
  75. ncbi Hyperoxia improves 20 km cycling time trial performance by increasing muscle activation levels while perceived exertion stays the same
    Ross Tucker
    MRC UCT Research Unit for Excercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, Sports Science Institute of South Africa, P O Box 115, Newlands 7725, South Africa
    Eur J Appl Physiol 101:771-81. 2007
    ..We tested the hypothesis that this is partly due to changes in muscle activation levels while perception of exertion remains unaltered...
  76. ncbi Reliability and validity of the Borg and OMNI rating of perceived exertion scales in adolescent girls
    Karin A Pfeiffer
    Department of Exercise Science, 730 Devine St, University of South Carolina, Columbia, SC 29208, USA
    Med Sci Sports Exerc 34:2057-61. 2002
    To examine the reliability and validity of the Borg and OMNI rating of perceived exertion (RPE) scales in adolescent girls during treadmill exercise.
  77. ncbi Work related physical exertion and spontaneous abortion
    B Banerjee
    Public Health Administration, Kolkata
    Indian J Public Health 49:248-9. 2005
    ..50 and AR% being 33.14. According to gravidity also, abortion was found to be significantly raised in working women after their joining service for first 3rd - 4th gravida. The risk then fell, to raise again for 8th or more gravida...
  78. pmc Do Thoroughbred and Standardbred horses have similar increases in pulmonary vascular pressures during exertion?
    R P Hackett
    Equine Performance Testing Clinic, Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA
    Can J Vet Res 67:291-6. 2003
    ..hypothesis that the pulmonary vascular pressures of Thoroughbred and Standardbred horses behave similarly during exertion. Measurements were made on 5 Thoroughbred and 5 Standardbred horses on a treadmill at rest and during 3-minute ..
  79. ncbi Effect of carbohydrate ingestion on ratings of perceived exertion during a marathon
    Alan C Utter
    Department of Health, Appalachian State University, Boone, NC 28608, USA
    Med Sci Sports Exerc 34:1779-84. 2002
    The purpose of this study was to investigate the effects of carbohydrate substrate availability on ratings of perceived exertion (RPE) and hormonal regulation during a competitive marathon.
  80. ncbi Training induced changes in maximum heart rate
    G P Whyte
    Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
    Int J Sports Med 29:129-33. 2008
    ..HRmax is similar between aerobically and anaerobically trained athletes. HRmax is significantly lower in athletes compared with age matched sedentary counterparts. The mechanisms underlying the lower HRmax remain to be elucidated...
  81. ncbi Reproducibility of time at or near VO2max during intermittent treadmill running
    A W Midgley
    University of Hull, Department of Sport, Health and Exercise Science, Hull, England
    Int J Sports Med 28:40-7. 2007
    ....
  82. ncbi Development of interesting step-climbing styles
    J J Chen
    Yang Ming Exercise Health Science Institute, National Yang Ming University, 155 Li Nong St Sec 2, Shih Pai, Taipei 112, Taipei City, Taiwan
    Methods Inf Med 44:323-7. 2005
    ..This study was to investigate the influence of stepping styles (forward, side, and cross steppings) and inclinations (25 and 45 degrees) on cardiorespiratory responses (C-R responses)...
  83. ncbi Chocolate milk as a post-exercise recovery aid
    Jason R Karp
    Dept of Kinesiology and Applied Health Science, Human Performance Laboratory, Indiana University, Bloomington 47405, USA
    Int J Sport Nutr Exerc Metab 16:78-91. 2006
    ..Time to exhaustion (TTE), average heart rate (HR), rating of perceived exertion (RPE), and total work (WT) for the endurance exercise were compared between trials...
  84. ncbi Physiological determinants of climbing-specific finger endurance and sport rock climbing performance
    D Macleod
    Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, UK
    J Sports Sci 25:1433-43. 2007
    ..014--60% test timepoint). Pressor responses were similar between groups and not related to the force-time integral for either test. We conclude that muscle re-oxygenation during rest phases is a predictor of endurance performance...
  85. ncbi Physiological responses to nordic walking, walking and jogging
    Thorsten Schiffer
    Institute of Motor Control and Movement Technique, German Sport University Cologne, Carl Diem Weg 6, Cologne, Germany
    Eur J Appl Physiol 98:56-61. 2006
    ..Additionally, the V(O)(2) formed by performing NW is not as high as previously reported...
  86. ncbi Effects of the muscle pump and body posture on cardiovascular responses during recovery from cycle exercise
    Tatsuhisa Takahashi
    Department of Mathematical Information Science, Asahikawa Medical College, Asahikawa 078 8510, Japan
    Eur J Appl Physiol 94:576-83. 2005
    ..These data suggest that the muscle pump is less important in facilitating venous return and vagal resumption in the supine position as compared to the upright position...
  87. ncbi The relationship between the VO2 slow component, muscle metabolites and performance during very-heavy exhaustive exercise
    Rob Duffield
    School of Human Movement and Exercise Science, The University of Western Australia, Crawley WA, Australia
    J Sci Med Sport 10:127-34. 2007
    ..Furthermore, it is possible that a reduced perturbation of anaerobic energy sources, as a result of a faster tau(1), may have contributed to a longer t(exh)...
  88. ncbi Haemodynamic effect of metaboreflex activation in men after running above and below the velocity of the anaerobic threshold
    Antonio Crisafulli
    Department of Science Applied to Biological Systems, Section of Human Physiology, University of Cagliari, Via Porcell 4, 09124 Cagliari, Italy
    Exp Physiol 93:447-57. 2008
    ..Moreover, this study strengthens the concept that the cardiovascular response to metaboreflex is not merely the consequence of an increase in systemic vascular resistance...
  89. ncbi Elimination of delayed-onset muscle soreness by pre-resistance cardioacceleration before each set
    W Jackson Davis
    Division of Physical and Biological Sciences, University of California at Santa Cruz, Santa Cruz, California, USA
    J Strength Cond Res 22:212-25. 2008
    ..Aerobic cardioacceleration immediately before each set of resistance exercises therefore rapidly eliminates DOMS during vigorous progressive resistance training in athletes...
  90. ncbi VO2 responses to intermittent swimming sets at velocity associated with VO2max
    Sebastien Libicz
    Faculte des Sciences du Sport, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France
    Can J Appl Physiol 30:543-53. 2005
    ..The time spent above 95% of VO(2)max was twice as long in IT(100) as in IT (50), and a large variability between mean VO(2)and HR values was also observed...
  91. ncbi Kinetics of .VO2 and femoral artery blood flow during heavy-intensity, knee-extension exercise
    Nicole D Paterson
    Canadian Centre for Activity and Aging, University of Western Ontario, 1490 Richmond St, London, Ontario, Canada N6G 2M3
    J Appl Physiol (1985) 99:683-90. 2005
    ..Thus, in heavy-intensity, single-leg, knee-extension exercise, the amplitude and kinetics of blood flow to the exercising limb appear to be closely linked to the .VO2 kinetics...
  92. ncbi Muscle fiber type distribution and nonlinear .VO(2)-power output relationship in cycling
    Preben K Pedersen
    Institute of Sports Science and Clinical Biomechanics, University of Southern Denmark, 55 Campusvej, DK 5230 Odense M, Denmark
    Med Sci Sports Exerc 34:655-61. 2002
    ..We examined whether reported deviations from linearity of the oxygen uptake (.VO(2))-to-power output (W) relationship during intense cycling exercise correlated with the percentage Type II fibers in the exercising muscle...
  93. pmc Effect of fluid ingestion on neuromuscular function during prolonged cycling exercise
    J M Vallier
    E A 3162 Laboratoire Ergonomie Sportive et Performance, Universite de Toulon Var, BP 20132, 83957 La Garde Cedex, France
    Br J Sports Med 39:e17. 2005
    ..To investigate the effects of fluid ingestion on neuromuscular function during prolonged cycling exercise...
  94. ncbi Effect of coffee ingestion on physiological responses and ratings of perceived exertion during submaximal endurance exercise
    Shinichi Demura
    Graduate School of Natural Science and Technology, Kanazawa University
    Percept Mot Skills 105:1109-16. 2007
    This study examined the effect of coffee ingestion on physiological responses and ratings of perceived exertion (RPE) during submaximal endurance exercises by 10 healthy young adults...
  95. ncbi Improved muscular efficiency displayed as Tour de France champion matures
    Edward F Coyle
    Human Performance Laboratory, Dept of Kinesiology and Health Education, Bellmont Hall 222, The University of Texas at Austin, Austin, TX 78712, USA
    J Appl Physiol (1985) 98:2191-6. 2005
    ..g., 5 l/min). It is hypothesized that the improved muscular efficiency probably reflects changes in muscle myosin type stimulated from years of training intensely for 3-6 h on most days...
  96. ncbi Effect of stage duration on physiological variables commonly used to determine maximum aerobic performance during cycle ergometry
    Darren M Roffey
    School of Human Movement Studies and ATN Centre for Metabolic Fitness, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
    J Sports Sci 25:1325-35. 2007
    ..maximum, maximum workload, maximum oxygen consumption (VO2max), maximum heart rate, maximum rating of perceived exertion, maximum blood lactate concentration, and maximum respiratory exchange ratio...
  97. ncbi Methods to quantify intermittent exercises
    François Denis Desgorces
    Unité de Formation et de Recherche en Sciences et Techniques des Activités Physiques et Sportives UFR STAPS, 1 rue Lacretelle, Universite Paris 5, 75015 Paris, France
    Appl Physiol Nutr Metab 32:762-9. 2007
    ..e., training impulse (TRIMP) and HR-zone methods), by the product of duration and rate of perceived exertion (RPE-based method), and a new method (work endurance recovery (WER))...
  98. ncbi Effect of different pedal rates on oxygen uptake slow component during constant-load cycling exercise
    T Migita
    Institute of Health and Sports Science, Kurume University, Kurume, Japan
    J Sports Med Phys Fitness 46:189-96. 2006
    ....
  99. ncbi Quantifying training intensity distribution in elite endurance athletes: is there evidence for an "optimal" distribution?
    K Stephen Seiler
    Department of Health and Sports, Agder University College, Kristiansand, Norway
    Scand J Med Sci Sports 16:49-56. 2006
    ..over 32 consecutive days were quantified using continuous heart rate registration and session Rating of Perceived Exertion (RPE). In addition, a subset of 60 consecutive training sessions was quantified using blood lactate measurements...
  100. ncbi Effects of dietary leucine supplementation on exercise performance
    Melissa J Crowe
    Institute of Sport and Exercise Science, James Cook University, Townsville, Qld 4811, Australia
    Eur J Appl Physiol 97:664-72. 2006
    ..10 s upper body power and work and a row to exhaustion at 70-75% maximal aerobic power where perceived exertion (RPE), heart rate (HR) and plasma BCAA and tryptophan concentrations were assessed...
  101. ncbi High intensity deep water training can improve aerobic power in elderly women
    Gi Broman
    Department of Sports and Health Sciences, Stockholm University College of Physical Education and Sports, Stockholm, Sweden
    Eur J Appl Physiol 98:117-23. 2006
    ..In conclusion, high intensity deep water running with vest improves submaximal work capacity, maximal aerobic power, and maximal ventilation with the effects transferable to land-based activities in elderly women...

Research Grants63

  1. Triggers of Abruptio Placentae - A Case Crossover Study of an Ischemic Placental
    Michelle A Williams; Fiscal Year: 2013
    ..case-crossover design to evaluate the acute effects of: 1) maternal smoking and alcohol consumption;2) physical exertion;3) sexual activity;4) abdominal trauma secondary to falls or motor vehicle crashes;and 5) exposure to intimate ..
  2. Molecular control of differential peptide transmitter exocytosis.
    COREY B SMITH; Fiscal Year: 2013
    DESCRIPTION (provided by applicant): Environmental threat, physical exertion or injury and psychological strain all lead to the initiation of the sympatho-adrenal "fight or flight" stress response...
  3. Regenerative Adjuvant Therapy for Stress Urinary Incontinence
    Margot S Damaser; Fiscal Year: 2011
    ..provided by applicant): Stress urinary incontinence (SUI) is the involuntary urine leakage on effort or exertion and is the most common form of urinary incontinence...
  4. Dyspnea on Exertion in Obesity: Effects of Exercise Training and Weight Loss
    Tony G Babb; Fiscal Year: 2013
    ..Although most obese adults with dyspnea on exertion are generally considered to be deconditioned, our preliminary data challenge this conventional wisdom...
  5. Aging, Sex, and Neural Cardiovascular Control During Dynamic Exercise
    Paul J Fadel; Fiscal Year: 2012
    ..consequences, it is critical to identify the mechanism(s) driving the excessive rise in BP during physical exertion in the elderly...
  6. Arm Motor Rehabilitation, Entertainment and Cognition System for the Elderly
    Grigore C Burdea; Fiscal Year: 2010
    ..integrated with custom game-like virtual reality simulations, gravity-gradated assistance/resistance and grasp exertion. This system should accommodate both high-functioning and low-functioning patients post-stroke, being superior to ..
  7. Clinical and Autonomic Effects of Mind-Body Exercise in COPD
    Gloria Y Yeh; Fiscal Year: 2013
    ..to deconditioned individuals with COPD, who suffer from limited exercise tolerance and shortness of breath on exertion, and it integrates multiple components relevant to COPD management, including low-intensity aerobic exercise, ..
  8. Dopamine-B-Hydroxylase in Human Cardiovascular Control
    DAVID HERLIE ROBERTSON; Fiscal Year: 2012
    ..Patients typically experience symptoms of excessive sympathetic activation with physical or emotional exertion. Upright heart rate and plasma norepinephrine are elevated. Many patients are also disabled by chronic fatigue...
  9. Interleukin-1 blockade in recently decompensated heart failure
    Benjamin W Van Tassell; Fiscal Year: 2013
    ..Heart failure (HF) is a complex clinical syndrome characterized by fatigue and labored breathing upon exertion. Although current treatment options have extended life expectancy, prognosis for HF remains poor and HF is the ..
  10. A Joint-Coupled Controlled-Brake Orthosis System for Hybrid FES Gait Restoration
    Michael Goldfarb; Fiscal Year: 2013
    ..As such, the pro- posed system has the characteristics (i.e., fail-safe, low fatigue, moderate exertion, easy don/doff, low electric- al power requirements) of a commercially viable self-contained gait restoration ..
  11. Understanding pH-Dependent Protein Behavior Using Advanced Continuum Theory
    JAYDEEP PORTER BARDHAN; Fiscal Year: 2013
    ..The chemical byproduct of muscle exertion (for example, during exercise) is a lowered pH near the muscle, which causes hemoglobin to release more of its ..
  12. Genetic Modification of Triggers of Acute Myocardial Infarction
    ANA B BAYLIN; Fiscal Year: 2011
    ..It has been shown that heavy physical exertion and coffee intake are two triggers of acute myocardial infarction...
  13. Metabolism, Skeletal Muscle, Cardiac Disease, Exercise
    John P Konhilas; Fiscal Year: 2010
    ..Relevance: Severe skeletal muscle weakness and fatigue upon exertion are major clinical features that occur in patients with congestive heart failure (CHF)...
  14. Development of rat models of the effort-related symptoms of depression
    John D Salamone; Fiscal Year: 2013
    ..that are useful for assessing the role of various neurotransmitters, such as dopamine (DA) and adenosine, in the exertion of effort and effort-related choice behavior...
  15. Metabolic Costs of Daily Activities in Older Adults
    Todd Manini; Fiscal Year: 2013
    ..Thirdly, because scientists and public health officials alike rely on perception-based exertion to monitor intensity of physical activity, we will address the question- "Is aging associated with inaccuracies ..
  16. The Neuroendocrine and Inflammatory Response to Exercise in Fibromyalgia
    LISA J contact WOOD; Fiscal Year: 2010
    ..Thus a critical question in advising FM patients on the level of exertion and in the prescription of exercise is "what is the right amount of exercise?" Presently, the answer to this ..
  17. Reducing the risk of heat-related illness in western agricultural workers;physio
    Marc B Schenker; Fiscal Year: 2013
    ..are: (1) Increase understanding of the physiological responses to increased environmental heat and physical exertion among farmworkers through the analyses of personal characteristics, monitors and sensors, and use the protocols ..
  18. Natural History of Stress, Urge and Mixed Urinary Incontinence in Women
    XIAOWEI SHERRY YAN; Fiscal Year: 2013
    ..Prevalence of stress UI (i.e. loss of urine on exertion) peaks in midlife, and then declines thereafter. The adult female prevalence is 13%. Prevalence of urge (i.e...
  19. Control of skin blood flow and sweating in grafted skin
    Craig G Crandall; Fiscal Year: 2012
    ..and sweating are critical responses for humans to appropriately regulate internal temperature during physical exertion and/or hyperthermic exposure...
  20. Exercise and Brain Function Using fMRI
    VALERIE GRIFFETH; Fiscal Year: 2013
    ..In the first specific aim, we will use this approach to examine the effects of two levels of exercise (maximal exertion and 20 minutes at 60% of VO2 max) on blood flow and oxygen metabolism...
  21. Dopaminergic Modulation of Subjective Valuation across Adulthood
    David H Zald; Fiscal Year: 2013
    ..benefits with any associated "costs", such as varying amounts of temporal delay until outcomes are realized, the exertion of physical effort required to achieve various outcomes, or uncertainty about the outcome of a choice...
  22. Self-focused attention, self-evaluation, and effort
    PAUL JOSEPH SILVIA; Fiscal Year: 2010
    ..1) examine-using physiological, cognitive, and self-report measures-how self-evaluation processes influence the exertion and withdrawal of effort during the pursuit of goals;(2) examine nonconscious processes that affect self-focused ..
  23. Profiling Biobehavioral Responses to Mechanical Support in Advanced Heart Failure
    CHRISTOPHER SEAN LEE; Fiscal Year: 2013
    ..Many patients with HF have symptoms at rest or with minimal exertion that become refractory to optimal medical therapy...
  24. Sympathetic-somatomotor coupling in human SCI
    Brian D Schmit; Fiscal Year: 2013
    ..week exercise training programs will be tested including 1) upper body ergometry, 2) treadmill training with exertion level matched to the upper body ergometry and 3) treadmill training with heart rate matched to an initial test of ..
  25. Ankle strengthening using virtual reality and robotic dynamometer for CP patients
    Grigore Burdea; Fiscal Year: 2009
    ..A new intelligent agent software will correlate task exertion requirements with patient past performance in order to determine the robot behavior (from 100% assistance to 100% ..
  26. Development of Wireless Abdominal Pressure Senor for Pelvic Floor Research
    Ingrid E Nygaard; Fiscal Year: 2013
    ..Existing physical activity instruments are largely designed to assess cardiovascular exertion and are validated using activity diaries, accelerometers, and step counters...
  27. Handcycle Attachment for Pushrim Manual Wheelchairs
    BART KYLSTRA; Fiscal Year: 2010
    ..prematurely into expensive power wheelchairs, reducing transportability, mobility, and therapeutic physical exertion. The health problems of a sedentary lifestyle result...
  28. Pulmonary vascular control at moderate altitude in patients with type 1 diabetes
    James C Baldi; Fiscal Year: 2010
    ..oxygen availability is high, however impaired lung function can have serious health consequences during physical exertion at increased altitude...
  29. Role of nucleus accumbens in effort-based decision-making
    SARA MORRISON; Fiscal Year: 2013
    ..accumbens (NAc) - and especially dopamine (DA) signaling in the NAc core - has long been implicated in the exertion of effort to obtain reward...
  30. Macaque Model of Carpal Tunnel Syndrome: Effects of Force and Posture Exposures
    Carolyn M Sommerich; Fiscal Year: 2010
    ..period associated with a natural recovery from CTS;and 3) To expand our database of maximum voluntary pinch exertion force of the macaque, which we use to predict and set experimental levels of force (as % of maximum) in our ..
  31. A community-based exercise program following endovascular therapy for patients wi
    Ryan J Mays; Fiscal Year: 2011
    ..to initiate rest periods due to claudication pain in 3-5 min or production strategy using ratings of perceived exertion)...
  32. REFLEXES IN LEFT VENTRICULAR DYSFUNCTION
    CHULANI KAPPAGODA; Fiscal Year: 2003
    ..from the applicant's abstract):Left ventricular dysfunction (LVD) is a syndrome which presents as dyspnea on exertion, wheezing, a rapid respiratory rate, and increased secretion of mucus...
  33. Effect of prior event on reward value
    Thomas R Zentall; Fiscal Year: 2010
    ..This effect has been thought to depend on the human need to resolve the presumed dissonance engendered by the exertion greater effort to obtain comparable rewards...
  34. Changes in Control of Movement Timing and Stability With Muscle Fatigue
    JONATHAN DINGWELL; Fiscal Year: 2009
    ..Between each segment of the protocol, rates of perceived exertion and maximum voluntary contractions (MVCs) will be recorded...
  35. EPIDEMIOLOGY OF EXERTION, STRESS, AND PRETERM DELIVERY
    David Savitz; Fiscal Year: 2004
    Though physical exertion and stress have been considered in a number of previous studies of pregnancy outcome, their potential influence on preterm birth and reduced fetal growth remains unresolved...
  36. Neural Circulatory Control in the Long QT Syndrome
    Virend Somers; Fiscal Year: 2006
    ..Events in patients with LQT1 occur during exertion, particularly during swimming. Excitement and auditory stimuli typically trigger events in LQT2 patients...
  37. Biomechanical Effects of Industrial Eccentric Exertions
    Robert Radwin; Fiscal Year: 2004
    ..Subjects will repetitively resist forearm supination against a motor for simulating eccentric exertion levels representative of pistol grip power hand tool operation...
  38. Stress and Neuroimmune Dysergulation in Chronic Fatigue Patients
    Kathleen Light; Fiscal Year: 2007
    ..To date, the neural, endocrine, and cytokine alterations that underlie this excessive pre- and post-exertion fatigue and pain are not well-defined, but some biomarker alterations appear to differ in subsets of CFS patients,..
  39. SCBA OXIMETRY FOR FIRE FIGHTER PHYSIOLOGIC MONITORING
    WILLIAM WIESMANN; Fiscal Year: 2005
    ..to heart attacks and other manifestations of physiologic stress and offers a valuable research tool for studying exertion-related heat stress in workers wearing PPE...
  40. EFFECTS OF ORGANOTINS ON HIPPOCAMPAL NEURONAL DEVELOPMEN
    WILLIAM ATCHISON; Fiscal Year: 2000
    ..Mechanical tension on neurons is an important regulator of neuron process development. Simple exertion of tension on brain neurons with force-calibrated glass needles can cause them to begin to develop their ..
  41. Linkages between the safety of the hospital bed, patient falls and immobility
    JANICE MARGARET MORSE; Fiscal Year: 2013
    ..for a hospital bed that will enable the patient to enter the bed safely, to reposition themselves with minimal exertion, to stand with minimal effort at the bedside, and to move away from the bed with an optimally stable gait...
  42. Maximizing Beneficial Exercise Effects in Fibromyalgia.
    Kim Jones; Fiscal Year: 2005
    ..disrupted sleep, fatigue, decreased cognition, visceral and other pain syndromes, neurological symptoms, post-exertion muscle pain and exercise intolerance...
  43. ACTH INDUCTION OF CYTOCHROME P450 IN ADRENAL CELLS
    Michael Waterman; Fiscal Year: 2002
    ..The signalling pathway required for exertion of transcriptional pressure by ACTH of steroidogenic genes is cAMP- responsive and inhibited by cycloheximide (..
  44. SCBA OXIMETRY FOR FIRE FIGHTER PHYSIOLOGIC MONITORING
    WILLIAM WIESMANN; Fiscal Year: 2000
    ..hazards, monitor the physiologic status of fire fighters working under conditions of extreme heat and exertion, and continuously display the identities and location of all personnel...
  45. SYMPTOM RESPONSES TO EXERCISE IN RHEUMATOID ARTHRITIS
    GERALDINE NEUBERGER; Fiscal Year: 1999
    ..walk time, grip strength, joint count, perceived morning stiffness time, a sleep measure, ratings of perceived exertion and predicted VO2Max. Psychosocial measures are listed above...
  46. VENTING FOR REDUCTION OF HYPERINFLATION IN EMPHYSEMA
    Joel Cooper; Fiscal Year: 2005
    ..to deflate more completely on exhalation, relieving breathlessness and increasing the patients' tolerance for exertion. To accomplish this we propose: 1) to create a dog model of severe emphysema; 2) to develop a simple, safe, and ..
  47. Mechanisms and Risk Factors in Musculoskeletal Pain
    JON DAVID LEVINE; Fiscal Year: 2011
    Chronic muscle pain syndromes (e.g. low back pain, myofascial pain, and pain induced by repeated exertion or exposure to mechanical vibrations), are common, debilitating, and very costly to society...
  48. CLONING OF FAMILIAL PRIMARY PULMONARY HYPERTENSION GENE
    William Nichols; Fiscal Year: 2006
    ..Diagnosis can often be delayed because the initial symptoms of fatigue and dyspnea on exertion are nonspecific. Definitive diagnosis requires cardiac catheterization...
  49. COCAINE ABUSE & EXERCISE INDUCED HEATSTROKE
    PETER LOMAX; Fiscal Year: 1990
    ..research is designed to determine if abuse of cocaine constitutes a risk factor in the pathogenesis of stress (exertion) induced heatstroke...
  50. MOTIVATION IN MAINTENANCE OF PHYSICAL ACTIVITY
    Julie Fleury; Fiscal Year: 2001
    ..variables in the theory are significant predictors of physical activity, including state of activity maintenance, exertion level, and physical fitness, over time, in individuals with diagnosed CHD who have completed a program of cardiac ..
  51. Lever Propulsion Attachment for Pushrim Wheelchairs
    BART KYLSTRA; Fiscal Year: 2010
    ..use include high cost, reduced transportability, and, most importantly, the loss of therapeutic physical exertion. The health problems of a sedentary lifestyle result...
  52. Exercise Stress Cardiac Magnetic Resonance
    Orlando Simonetti; Fiscal Year: 2009
    ..Exercise stress testing provides important information about the heart's response to physical exertion, and MRI is a non-invasive imaging method that has many advantages over other imaging techniques...
  53. Palliative Oxygen for the Relief of Breathlessness
    Amy Abernethy; Fiscal Year: 2007
    ..Eligible participants have intractable breathlessness at rest or with minimal exertion and PaO2>55mmHg; 240 participants will be recruited from seven sites on three continents...
  54. SHAPE MEMORY ALLOY ACTUATOR SYSTEM FOR PROSTHETIC ELBOW
    CHARLES PFEIFFER; Fiscal Year: 2000
    ..Weight is a critical choice of comfort measured, in part, by level of exertion and passive fatigue...
  55. Bioelectronic Telemetry System For Fire Fighter Safety
    MICHAEL MASTERMAN; Fiscal Year: 2005
    ..Generally, over 50% of these deaths are from heart attacks due to the high-stress associated with extreme exertion in life-and-death situations...
  56. MATRIX MEDIATED MECHANISMS IN DELAYED WOUND HEALING
    DAVID BERNANKE; Fiscal Year: 1993
    ..location of the pericellular matrix suggests and interference with cell attachment to collagen and, thus, with exertion of force for wound closure...
  57. Systemic and Localized Stress Resilience in Aging: Effects of Physical Fitness.
    TINNA TRAUSTADOTTIR; Fiscal Year: 2009
    ..dramatically poorer outcomes compared to young adults when exposed to acute stressors such as illness, injury, or exertion. However, the response in older individuals is highly heterogeneous, suggesting that age alone is not a good ..
  58. TRUNK STABILITY AND SPINAL LOAD DURING MMH LIFTING
    Kevin Granata; Fiscal Year: 1999
    ..the musculoskeletal system over-reacts, loading the spine approximately 3 times greater than an equivalent stable exertion. The EMG-assisted biomechanical model employed to achieve these results has demonstrated that muscle co-..
  59. From Infection to Neurometabolism: A Nexus for CFS
    Jan Witkowski; Fiscal Year: 2009
    ..fatigue often accompanied by chronic widespread pain, cognitive impairment, sleep disturbance and post-exertion malaise. Last year, the CDC estimated that at least 4 million American adults suffer with CFS...
  60. Self-Regulated Exercise in CF: A Randomized Trial
    David M Orenstein; Fiscal Year: 2010
    ..The Children's OMNI Scale of Perceived Exertion will be used to make adjustments in training intensity...
  61. Sleep and Cytokines in Chronic Fatigue Syndrome
    Benjamin Natelson; Fiscal Year: 2003
    ..after a day in which subjects perform a maximal exercise test because of the well-known exacerbation of CFS by exertion. We are anticipating that exercise will make some CFS patients sleep even worse than usual and exacerbate an ..
  62. Improving health-related quality of life outcomes
    Evelyn Yeaw; Fiscal Year: 2001
    ..The outcome measures will include: PImax, Perceived Exertion Scale (Borg), Chronic Respiratory Questionnaire Dyspnea Scale (Guyatt), COPD Self-Efficacy Scale (Wigal), and the ..
  63. Power Propulsion Attachment for Manual Wheelchairs
    BART KYLSTRA; Fiscal Year: 2007
    ..power wheelchair users face significant disadvantages including high cost, total loss of therapeutic physical exertion and dramatically reduced transportability...