Genomes and Genes
Summary: Reflex contraction of a muscle in response to stretching, which stimulates muscle proprioceptors.
Publications209 found, 100 shown here
- Reflex gain of muscle spindle pathways during fatigueA Biro
School of Kinesiology and Health Science, York University, Toronto, ON, Canada
Exp Brain Res 177:157-66. 2007..These results provide evidence that the gain of the gamma loop is increased during fatigue, indicating possible peripheral neural compensation to the motor neuron pool in order to preserve force output...
- A method to evaluate reflex excitability of the human ankle plantarflexors despite changes in maximal activation capacitiesDaniel Lambertz
Universite de Technologie de Compiegne, Département de Génie Biologique, CNRS UMR 6600, 60205 Compiegne Cedex, France
Exp Brain Res 143:89-99. 2002..A mean stretch reflex (SR) amplitude ((-)SRA), i.e...
- Clonus after human spinal cord injury cannot be attributed solely to recurrent muscle-tendon stretchJanell A Beres-Jones
Department of Neurology, UCLA School of Medicine, 1000 Veteran Avenue Suite A386, Mail Code 714722, Los Angeles, CA 90095 7147, USA
Exp Brain Res 149:222-36. 2003..However, these results support the theory that the interaction of central mechanisms and peripheral events may be responsible for clonus...
- Change of stretch reflex threshold in spasticity: effect of botulinum toxin injectionsG Stampacchia
Dipartimento di Neuroscienze, Neuroriabilitazione, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
Arch Ital Biol 142:265-73. 2004Spasticity is a disorder of hypertonus associated with neurological diseases, characterized by a decrease in stretch reflex threshold...
- Age-related changes of the stretch reflex excitability in human ankle musclesHiroki Obata
Department of Life Sciences, Graduate School of Arts and Sciences, Sports Science Laboratory, The University of Tokyo, Meguro ku, Tokyo, Japan
J Electromyogr Kinesiol 20:55-60. 2010The purpose of this study was to characterize the effects of aging on the stretch reflex in the ankle muscles, and in particular to compare the effects on the ankle dorsi-flexor (tibialis anterior: TA) and the plantar-flexor (soleus: SOL)...
- Relationship between stretch reflex thresholds and voluntary arm muscle activation in patients with spasticityNadine K Musampa
School of Rehabilitation, University of Montreal, Montreal, QC, Canada
Exp Brain Res 181:579-93. 2007..It is suggested that the presence of spatial spasticity zones might be a major cause of motor impairments in general and deficits in inter-joint coordination in particular in patients with spasticity...
- Stretch reflex coupling between the hip and knee: implications for impaired gait following strokeJames M Finley
Department of Biomedical Engineering, Northwestern University, Evanston, IL 60201, USA
Exp Brain Res 188:529-40. 2008....
- Reliability of elbow stretch reflex assessment in chronic post-stroke hemiparesisElizabeth G Condliffe
Neural Control of Movement Laboratory, Department of Rehabilitation Sciences, Boston University, Boston, MA, USA
Clin Neurophysiol 116:1870-8. 2005..To establish reliability of quantitative measures of elbow joint spastic hypertonia in post-stroke hemiparesis...
- Neurophysiological methods for the assessment of spasticity: the Hoffmann reflex, the tendon reflex, and the stretch reflexG E Voerman
Roessingh Research and Development, Enschede, The Netherlands
Disabil Rehabil 27:33-68. 2005..neurophysiological methods to assess spasticity with respect to mechanisms and methodology, and to describe the three most commonly used methods: the Hoffmann reflex (H-reflex), the Tendon reflex (T-reflex), and the Stretch Reflex (SR).
- Interactions with compliant loads alter stretch reflex gains but not intermuscular coordinationEric J Perreault
Sensory Motor Performance Program, Rehabilitation Institute of Chicago, 345 E Superior Street, Chicago, IL 60611, USA
J Neurophysiol 99:2101-13. 2008..b>Stretch reflex sensitivity increased significantly in all muscles during interactions with the compliant environment and ..
- Spasticity: clinical perceptions, neurological realities and meaningful measurementA D Pandyan
School of Health and Rehabilitation Institute of Ageing, Keele University, UK
Disabil Rehabil 27:2-6. 2005
- The effect of fatigue and habituation on the stretch reflex of the ankle musculatureNicole D Jackson
Human Performance Laboratory, Department of Health, Nutrition and Exercise Sciences University of Delaware, 114 Fred Rust Ice Arena, 541 South College Avenue, Newark, DE 19716, USA
J Electromyogr Kinesiol 19:75-84. 2009..Furthermore, the contributions of the stretch reflex in countering the injury mechanism are still unclear...
- A diverse pattern of the spike threshold changes in feline gastrocnemius-soleus motoneurons during stretch reflex activationAlexander I Kostyukov
Department of Movement Physiology, A A Bogomoletz Institute of Physiology, National Academy of Sciences, Bogomoletz str 4, Kiev, 01024, Ukraine
Exp Brain Res 203:711-22. 2010..The obtained results indicate that the threshold-crossing models with a single-valued dependency of the spike thresholds on the firing rates are not completely suitable to analyze the spike generation processes in the motor unit records...
- Inhibitory effect of the Jendrassik maneuver on the stretch reflexA Nardone
Fondazione Salvatore Maugeri IRCCS, Scientific Institute of Veruno Veruno NO, Posture and Movement Laboratory, Italy
Neuroscience 156:607-17. 2008..This new information suggests that lesions of cortical areas or descending pathways can exert enhancing effects on muscle tone by removing an inhibitory action on the late component of the stretch reflex.
- Neural and mechanical contributions to the stretch reflex: a model synthesisChou Ching K Lin
Cleveland FES Center, L B Stokes VA Medical Center and Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
Ann Biomed Eng 30:54-67. 2002A model for the soleus stretch reflex in the decerebrate cat was synthesized from models of the neural and muscular components, including the two proprioceptors (the muscle spindle and Golgi tendon organ) and their associated afferents (..
- Evidence for a supraspinal contribution to the human quadriceps long-latency stretch reflexN Mrachacz-Kersting
Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D 3, Aalborg DK 9220, Denmark
Exp Brain Res 168:529-40. 2006In sitting humans a rapid unexpected lengthening of the knee extensors elicits a stretch reflex (SR) response as recorded by the electromyogram (EMG) which comprises multiple bursts...
- Spasticity measurement based on tonic stretch reflex threshold in stroke using a portable deviceAndra Calota
School of Physical and Occupational Therapy, McGill University, 3654 Promenade Sir William Osler, Montreal, Que, Canada H3G 1Y5
Clin Neurophysiol 119:2329-37. 2008We investigated intra- and inter-evaluator reliability to quantify spasticity based on the tonic stretch reflex threshold (TSRT) and the correlation between TSRT and resistance to stretch.
- Prolonged muscle vibration increases stretch reflex amplitude, motor unit discharge rate, and force fluctuations in a hand muscleMinoru Shinohara
Dept of Integrative Physiology, Univ of Colorado, Boulder, CO 80309 0354, USA
J Appl Physiol (1985) 99:1835-42. 2005..of this study was to compare the influence of prolonged vibration of a hand muscle on the amplitude of the stretch reflex, motor unit discharge rate, and force fluctuations during steady, submaximal contractions...
- Long-latency component of the stretch reflex in human muscle is not mediated by intramuscular stretch receptorsD M Corden
School of Biological Sciences, Royal Holloway, London University, London TW20 0EX, United Kingdom
J Neurophysiol 84:184-8. 2000..In the latter, only M1 was produced. It is concluded that the long-latency component of the stretch reflex, M2, originates in skin and/or subcutaneous nerve terminals and that no part of M2 originates in muscle ..
- Proposed cortical and sub-cortical contributions to the long-latency stretch reflex in the forearmGwyn N Lewis
Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL 60611, USA
Exp Brain Res 156:72-9. 2004The short- and long-latency (SLSR, LLSR) components of the stretch reflex response were investigated in the forearm using a paired transcranial magnetic stimulation (TMS)-stretch reflex protocol...
- Impaired stretch reflex and joint torque modulation during spastic gait in multiple sclerosis patientsT Sinkjaer
Center for Sensory Motor Interaction, Aalborg University, Aalborg, Denmark
J Neurol 243:566-74. 1996The modulation of the short latency stretch reflex of the soleus muscle during walking was investigated in seven spastic multiple sclerosis (MS) patients and nine healthy control subjects...
- Tonic stretch reflex threshold as a measure of spasticity: implications for clinical practiceAndra Calota
School of Physical and Occupational Therapy, McGill University, Montreal, Quebec, Canada
Top Stroke Rehabil 16:177-88. 2009Lance's definition of spasticity states: (1) the excitability of the tonic stretch reflex threshold is the conceptual unit of measure of spasticity; (2) because spasticity is a velocity-dependent phenomenon, different velocities of ..
- The differential role of motor cortex in stretch reflex modulation induced by changes in environmental mechanics and verbal instructionJonathan Shemmell
Sensory Motor Performance Program, The Rehabilitation Institute of Chicago, Chicago, Illinois 60611, USA
J Neurosci 29:13255-63. 2009..Such loops appear to add flexibility to the human stretch reflex, once considered to be immutable, allowing it to adapt across a range of functional tasks...
- Interactions between limb and environmental mechanics influence stretch reflex sensitivity in the human armMatthew A Krutky
Department of Biomedical Engineering, Northwestern University, Evanston, IL, USA
J Neurophysiol 103:429-40. 2010..The purpose of this study was to investigate the specificity of stretch reflex modulation during interactions with mechanical environments that challenge arm stability...
- The role of the stretch reflex in the gastrocnemius muscle during human locomotion at various speedsM Ishikawa
Neuromuscular Research Center, Dept of Biology of Physical Activity, Univ of Jyvaskyla, 40014 Jyvaskyla, Finland
J Appl Physiol (1985) 103:1030-6. 2007..of the human medial gastrocnemius (MG) muscle was monitored to evaluate possible input from the short-latency stretch reflex (SLR) during the stance phase of running and to examine its timing at various running speeds...
- Capsaicin-induced muscle pain alters the excitability of the human jaw-stretch reflexK Wang
Center for Sensory Motor Interaction, Orofacial Pain Laboratory, Aalborg University, Fredrik Bajers Vej 7 D 3, Denmark
J Dent Res 81:650-4. 2002..activation of nociceptive muscle afferent fibers would be linked to an increased excitability of the human jaw-stretch reflex and whether this process would be sensitive to length and velocity of the stretch...
- Short latency stretch reflex in human lumbar paraspinal musclesJørgen Skotte
Department of Physiology, National Institute of Occupational Health, Lersø Parkallé 105, DK 2100 Copenhagen, Denmark
J Neurosci Methods 145:145-50. 2005The aim of the study was to measure stretch reflex latencies of the lumbar paraspinal muscles...
- Group II muscle afferents probably contribute to the medium latency soleus stretch reflex during walking in humansM J Grey
Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajersvej 7 D3, DK 9220, Aalborg, Denmark
J Physiol 534:925-33. 2001..of this study was to determine which afferents contribute to the medium latency response of the soleus stretch reflex resulting from an unexpected perturbation during human walking. 2...
- Is the long-latency stretch reflex in human masseter transcortical?Sophie L Pearce
Department of Physiology, The University of Adelaide, 5005, Adelaide, South Australia, Australia
Exp Brain Res 150:465-72. 2003A long-latency stretch reflex (LLSR) has been described in the human masseter muscle, but its pathway remains uncertain...
- Effects of contraction intensity on muscle fascicle and stretch reflex behavior in the human triceps suraeNeil J Cronin
Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
J Appl Physiol (1985) 105:226-32. 2008..in contraction intensity in the human triceps surae and to relate fascicle stretch responses to short-latency stretch reflex behavior...
- Variation of magnitude and timing of wrist flexor stretch reflex across the full range of voluntary activationI Cathers
School of Biomedical Sciences, The University of Sydney, Sydney, Australia
Exp Brain Res 157:324-35. 2004This paper reports an investigation of the magnitude and timing of the stretch reflex over the full range of activation of flexor carpi radialis...
- Stretch reflex modulation during imposed static and dynamic hip movements in standing humansNoritaka Kawashima
Department of Movement Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, 4 1 Namiki, Tokorozawa, Saitama, 359 8555, Japan
Exp Brain Res 174:342-50. 2006The purpose of this study was to investigate the effects of hip proprioceptors on soleus stretch reflex excitability in standing humans...
- Effects of dorsolateral spinal lesions on stretch reflex threshold and stiffness in awake catsJ Taylor
Department of Neuroscience, University of Florida, Gainesville 32610, USA
Eur J Neurosci 11:363-8. 1999..Unilateral lesions of the dorsolateral funiculus (DLF) produced significant ipsilateral decreases in stretch reflex threshold and increases in reflex gain, measured as incremental dynamic stiffness (IDS)...
- Pulsatile motor output in human finger movements is not dependent on the stretch reflexJ Wessberg
Department of Physiology, Goteborg University, Goteborg, Sweden
J Physiol 493:895-908. 1996..perturbations were delivered during slow voluntary finger movements with the aim of exploring the role of the stretch reflex in generating the 8-10 Hz discontinuities that characterize these movements...
- Experimental muscle pain increases the human stretch reflexD A Matre
Center for Sensory Motor Interaction, Aalborg University, Denmark
Pain 75:331-9. 1998..With pain in the soleus muscle the mechanical stretch reflex response (ankle torque) increased significantly (P = 0.0007) as compared to before pain...
- The influence of perturbation duration and velocity on the long-latency response to stretch in the biceps muscleGwyn N Lewis
Sensory Motor Performance Program, Rehabilitation Institute of Chicago, 345 E Superior St, Chicago, IL 60611, USA
Exp Brain Res 163:361-9. 2005Different neural pathways are proposed to mediate the long-latency stretch reflex response (M2) in muscles spanning distal and proximal joints of the upper limb...
- Stretch reflex and Hoffmann reflex responses to osteopathic manipulative treatment in subjects with Achilles tendinitisJohn N Howell
Interdisciplinary Institute for Neuromuscular Research, Department of Biomedical Sciences, Irvine Hall, Ohio University College of Osteopathic Medicine, Athens, OH 45701 2979, USA
J Am Osteopath Assoc 106:537-45. 2006Irvin M. Korr, PhD, hypothesized that sensitivity of the monosynaptic stretch reflex (ie, deep tendon reflex) plays a major role in the restriction-of-motion characteristic of somatic dysfunction, and that restoration of range of motion ..
- The effect of task instruction on the excitability of spinal and supraspinal reflex pathways projecting to the biceps muscleGwyn N Lewis
Sensory Motor Performance Program, Rehabilitation Institute of Chicago, 345 E Superior St, Chicago, IL 60611, USA
Exp Brain Res 174:413-25. 2006..controversy within the literature regarding the influence of task instruction on the size of the long-latency stretch reflex (M2) elicited by a joint displacement...
- Effects of arousal and natural baroreceptor activation on the human muscle stretch reflexDavid McIntyre
School of Sport and Exercise Sciences, University of Birmingham, Birmingham, United Kingdom
Psychophysiology 41:954-60. 2004..This study investigated the effects of phase of the cardiac cycle and arousal on the muscle stretch reflex components M1, M2, and M3...
- Stretch reflex excitability of the anti-gravity ankle extensor muscle in elderly humansN Kawashima
Department of Rehabilitation for the Movement Functions, Research Institute of National Rehabilitation Center for Persons with Disabilities, Namiki, Tokorozawa City, Japan
Acta Physiol Scand 180:99-105. 2004To examine whether the stretch reflex excitability of the soleus muscle changes with age, stretch reflexes at rest (REST) and during weak voluntary contractions (ACT) were elicited in 18 older and 14 younger subjects.
- Long lasting effects of rTMS and associated peripheral sensory input on MEPs, SEPs and transcortical reflex excitability in humansTetsuya Tsuji
Sobell Department of Neurophysiology, Institute of Neurology, Queen Square, London WC1N 3BG, UK
J Physiol 540:367-76. 2002..These changes affect not only MEPs and SEPs but also EMG responses to more 'natural' inputs involved in transcortical stretch reflexes...
- Afferent mechanisms for the reflex response to imposed ankle movement in chronic spinal cord injuryBrian D Schmit
Sensory Motor Performance Program, Rehabilitation Instiute of Chicago, Chicago, IL, USA
Exp Brain Res 145:40-9. 2002..These afferents are activated preferentially as muscles are stretched to near maximum length, and they appear to have potent reflex effects in spinal cord injury...
- Identification of intrinsic and reflex contributions to human ankle stiffness dynamicsR E Kearney
Department of Biomedical Engineering, McGill University, Montreal, P Q, Canada
IEEE Trans Biomed Eng 44:493-504. 1997..It is concluded that reflex stiffness can be large enough to be important functionally, but that its effects will depend strongly upon the particular conditions...
- Continuous wavelet transform in the evaluation of stretch reflex responses from surface EMGRichardson N Leao
School of Biomedical Sciences, University of Sydney, Sydney, NSW, Australia
J Neurosci Methods 133:115-25. 2004..reflexes where excellent temporal resolution is required to identify the different latency components, and on the tonic stretch reflex (tonic SR) response to an ongoing perturbation that characteristically has a low signal to noise ratio.
- Spindle and motoneuronal contributions to the phase advance of the human stretch reflex and the reduction of tremorP B Matthews
University Laboratory of Physiology, Oxford, UK
J Physiol 498:249-75. 19971. The human stretch reflex is known to produce a phase advance in the EMG reflexly evoked by sinusoidal stretching, after allowing for the phase lag introduced by simple conduction...
- The monosynaptic Ia afferent pathway can largely explain the stretch duration effect of the long latency M2 responseJasper Schuurmans
Laboratory for Neuromuscular Control, Department of Biomechanical Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands
Exp Brain Res 193:491-500. 2009..It was concluded that the stretch duration effect of the M2 likely originates from the proposed Ia afferent mediated mechanism...
- Whole body vibration does not potentiate the stretch reflexJ T Hopkins
Human Performance Research Center, Brigham Young University, Provo, Utah, USA
Int J Sports Med 30:124-9. 2009Whole body vibration (WBV) is theorized to enhance neural potentiation of the stretch reflex. The purpose of this study was to determine if WBV affects the quadriceps reflex from a patellar tendon tap...
- Muscle, reflex and central components in the control of the ankle joint in healthy and spastic manT Sinkjaer
Department of Medical Informatics and Image Analysis, Aalborg University, Denmark
Acta Neurol Scand Suppl 170:1-28. 1997..active muscle system around the joint (termed the non-reflex component), ii) the mechanical importance of the stretch reflex in the stretched and unloaded muscles, and iii) the supraspinal control of the stretch reflex...
- Cortical mechanisms underlying stretch reflex adaptation to intention: a combined EEG-TMS studyL Spieser
Mediterranean Institute of Cognitive Neuroscience, UMR 6193, CNRS University of Aix Marseille, Marseille, France
Neuroimage 52:316-25. 2010..Taken together, these results support the idea that anticipatory processes preset the sensorimotor cortex so as to adapt its early reaction to the perturbation relative to the subjects' intention...
- Influence of posture and muscle length on stretch reflex activity in poststroke patients with spasticityJudith F Fleuren
Roessingh Research and Development, Enschede, The Netherlands
Arch Phys Med Rehabil 87:981-8. 2006To investigate the influence of different positions on stretch reflex activity of knee flexors and extensors measured by electromyography in poststroke patients with spasticity and its expression in the Ashworth Scale.
- The spasticity paradox: movement disorder or disorder of resting limbs?J A Burne
University of Sydney, PO Box 170, Lidcombe, NSW 1825, Australia
J Neurol Neurosurg Psychiatry 76:47-54. 2005Spasticity is defined/assessed in resting limbs, where increased stretch reflex activity and mechanical joint resistance are evident...
- Biomechanical approaches applied to the lower and upper limb for the measurement of spasticity: a systematic review of the literatureD E Wood
Department of Medical Physics and Biomedical Engineering, Salisbury District Hospital, Salisbury, UK
Disabil Rehabil 27:19-32. 2005..To review and characterise biomechanical approaches for the measurement of spasticity as one component of the upper motor neurone syndrome...
- Sympathetic outflow enhances the stretch reflex response in the relaxed soleus muscle in humansNis Hjortskov
National Institute of Occupational Health, Dept of Physiology, Lersø Parkallé 105, DK 2100 Copenhagen, Denmark
J Appl Physiol (1985) 98:1366-70. 2005..suggest that an increase in sympathetic outflow can depress muscle spindle sensitivity and thus modulate the stretch reflex response...
- Temporal facilitation of spastic stretch reflexes following human spinal cord injuryT George Hornby
Department of Physical Therapy, University of Illinois at Chicago, 1919 W Taylor St 4th floor, M C 898, Chicago, IL 60612, USA
J Physiol 571:593-604. 2006..Evidence of stretch reflex facilitation post-SCI may reflect changes in underlying neuronal properties and provide insight into the ..
- Voluntary modulation of human stretch reflexesDaniel Ludvig
Department of Biomedical Engineering, McGill University, 3775 University Street, Montreal, QC, Canada H3A 2B4
Exp Brain Res 183:201-13. 2007..Thus, we conclude that the CNS can control reflex stiffness independently and so has great flexibility in adjusting the mechanical properties of a joint to meet functional requirements...
- Model of head-neck joint fast movements in the frontal planeA Pedrocchi
NIT lab TBM Lab Dept of Bioengineering, Politecnico di Milano, P zza L Da Vinci, 32, 20133 Milan, Italy
Biol Cybern 90:377-89. 2004..limit of range of motion, gravitational field, and muscular torques due to voluntary activation as well as to stretch reflex depending on fusal afferences...
- Reflex reciprocal facilitation of antagonist muscles in spinal cord injuryR Xia
Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, IL, USA
Spinal Cord 43:14-21. 2005..Electromyographic study in complete and incomplete spinal cord injury (SCI)...
- Concurrent changes in shortening reaction latency and reaction time of forearm muscles in post-stroke patientsG Miscio
Department of Neurology and Neurorehabilitation, Istituto Auxologico Italiano IRCCS, San Giuseppe Hospital, Piancavallo, Oggebbio VB, Italy
Neurol Sci 26:402-10. 2006..Frequency of occurrence and latency of stretch reflex (SR) and ShoRe, and RTs were measured from the electromyograms (EMG) of wrist flexor (FCR) and extensor (ECR) ..
- Decreased contribution from afferent feedback to the soleus muscle during walking in patients with spastic strokeNazarena Mazzaro
Center for Sensory Motor Interaction, Aalborg University, Denmark
J Stroke Cerebrovasc Dis 16:135-44. 2007..The SOL short-latency stretch reflex was facilitated in the patients (1.4 +/- 0.3) compared with the healthy volunteers (1.0 +/- 0.3, P = .05)...
- The suppression of the long-latency stretch reflex in the human tibialis anterior muscle by transcranial magnetic stimulationJohan van Doornik
Center for Sensory Motor Interation, Aalborg University, Fredrik Bajers Vej 7 D3, DK 9220, Aalborg, Denmark
Exp Brain Res 157:403-6. 2004The purpose of this study was to investigate the transcortical nature of the long-latency stretch reflex (M3) in the human tibialis anterior muscle...
- Re-examination of the possible role of Golgi tendon organ and muscle spindle reflexes in proprioceptive neuromuscular facilitation muscle stretchingGordon Chalmers
Department of Physical Education, Health and Recreation, Western Washington University, Bellingham, WA, USA
Sports Biomech 3:159-83. 2004..Further, following contraction of a stretched muscle, inhibition of the stretch reflex response lasts only 1 s...
- Neuromuscular modeling of spasticity in cerebral palsyJames W Fee
Alfred I duPont Hospital for Children, Wilmington, DE 19899, USA
IEEE Trans Neural Syst Rehabil Eng 12:55-64. 2004..Both active models and the passive model use separate parameters of stiffness and damping for the agonist and antagonist muscles...
- Critical illness VR rehabilitation device (X-VR-D): evaluation of the potential use for early clinical rehabilitationH van de Meent
University Medical Centre St Radboud, Department of Rehabilitation Medicine, Reinierpostlaan 4, POB 9191, Postal code 6500 HB Nijmegen, The Netherlands
J Electromyogr Kinesiol 18:480-6. 2008..We conclude that the X-VR-D is safe and effective to elicit consistent and reproducible muscle activity in trunk and leg muscles in healthy subjects and thus can be used as a training method...
- In vivo assessment of elbow flexor work and activation during stretch-shortening cycle tasksD L Benoit
University of Delaware, Department of Mechanical Engineering, Center for Biomedical Research, Spencer Labs 126, Newark, DE 19716, USA
J Electromyogr Kinesiol 16:352-64. 2006..The EMG driven model predicted well for all non-SSC trials, but significantly underestimated the work for SSC tasks, suggesting that the contractile component is directly involved in optimising muscle work during SSC tasks...
- Neural and mechanical responses of the triceps surae muscle group after 1 h of repeated fast passive stretchesJanne Avela
Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, FIN 40100 Jyväskylä, Finland
J Appl Physiol (1985) 96:2325-32. 2004..In addition, altered material properties seem to affect proprioceptive feedback and, therefore, the motor unit activation in proportion to the contractile failure...
- Relationship of spasticity to knee angular velocity and motion during gait in cerebral palsyDiane L Damiano
Department of Neurology, Washington University, PO Box 8111, 660 S Euclid Avenue, St Louis, MO 63110, USA
Gait Posture 23:1-8. 2006....
- Reflexes in prior polio and their relation to weakness and anterior horn cell lossArne Sandberg
Department of Clinical Neurophysiology, Neurocentre, Uppsala University Hospital, SE 751 85 Uppsala, Sweden
J Electromyogr Kinesiol 16:611-20. 2006..The first is reduced excitability of monosynaptic connections in the motor neuron pool, which is related to weakness. The other is the presence of ILR as an indicator of interneuronal hyper-excitability, which is not related to weakness...
- Age-related neuromuscular function during drop jumpsM Hoffren
Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, 40014 Jyvaskyla, Finland
J Appl Physiol (1985) 103:1276-83. 2007..These results suggest that age-specific muscle activation patterns as well as mechanical behaviors exist during DJs...
- Review of motor control mechanisms underlying impact absorption from fallsMarco Santello
Department of Kinesiology and The Harrington Department of Bioengineering, PEBE 107B, Orange Street, Arizona State University, Tempe, AZ 85287 0404, USA
Gait Posture 21:85-94. 2005..Part III explores the proposed sensorimotor mechanisms underlying the control of landing. The review concludes with as yet unresolved questions and directions for future research...
- Control of single-joint movements with a reversalRodrigo Gaiga Paulino
Departamento de Fisiologia e Biofisica, Instituto de Biologia, Universidade de Campinas, Campinas, Sao Paulo, Brazil
J Electromyogr Kinesiol 15:406-17. 2005..However, they are compatible with the idea of peripheral factors, such as peripheral muscle and tendon elasticity, playing a major potentiating role in the SSC...
- Central suppression of regenerated proprioceptive afferentsValerie K Haftel
Department of Physiology, Emory University, Atlanta, Georgia 30322, USA
J Neurosci 25:4733-42. 2005..Next, multiple elements in the sensorimotor circuit of the stretch reflex were examined in both the PNS and CNS...
- Effects of effort and EMG levels on short-latency stretch reflex modulation after varying background muscle contractionsK Ogiso
Department of Biology of Physical Activity, Neuromuscular Research Center, University of Jyvaskyla, FIN 40351, Jyvaskyla, Finland
J Electromyogr Kinesiol 15:333-40. 2005It is known that the short-latency stretch reflex (SLSR) is modulated by the background muscle activity when it is elicited at matched torque levels...
- Interest of peripheral anesthetic blocks as a diagnosis and prognosis tool in patients with spastic equinus foot: a clinical and electrophysiological study of the effects of block of nerve branches to the triceps surae muscleKevin Buffenoir
Service de Neurochirurgie, Hopital Henri Mondor, Assistance Publique Hopitaux de Paris, Creteil, France
Clin Neurophysiol 116:1596-600. 2005To evaluate clinically and electrophysiologically the effects of selective anesthetic blocks of motor nerve branches to the triceps surae muscle on lower limb stretch reflex in patients with spastic equinus foot.
- Functional sparing of intrafusal muscle fibers in muscular dystrophiesJean Marc Aimonetti
Laboratoire de Neurobiologie Humaine, UMR 6149, Universite de Provence CNRS, Pôle 3C Case B, Centre de Saint Charles 3, Place Victor Hugo, 13331 Marseille, France
Muscle Nerve 32:88-94. 2005..The reasons for a differential impairment of intrafusal and extrafusal muscle fibers and the clinical implications of the present results are discussed...
- Reduction of common synaptic drive to ankle dorsiflexor motoneurons during walking in patients with spinal cord lesionN L Hansen
Department of Physical Exercise and Sport Science and Division of Neurophysiology, The Panum Institute, Copenhagen University, Blegdamsvej 3, 2200 Copenhagen N, Denmark
J Neurophysiol 94:934-42. 2005..Such markers could have diagnostic and prognostic value in relation to the recovery of locomotion in patients with central motor lesions...
- Anticipation of elbow joint perturbation shortens the onset time of the reflex EMG response in biceps brachii and triceps brachiiTakayuki Koike
Laboratory of Human Movement Science, Graduate School of Education, Hokkaido University, Japan
Neurosci Lett 412:56-61. 2007..The results indicate that the anticipation of an applied perturbation torque decreases the onset time of the reflex response in the Bb and Tb...
- Inhibition from the plantar nerve to soleus muscle during the stance phase of walkingJunichi Shoji
Department of Rehabilitation Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku ku, Tokyo 160 8582, Japan
Brain Res 1048:48-58. 2005..It would minimize this inhibition during the stance phase of walking and might enhance soleus muscle activity via this reflex pathway for the support of weight...
- Effect of lower limb massage on electromyography and force production of the knee extensorsA M Hunter
Department of Sports Studies, University of Stirling, Stirling, Scotland, UK
Br J Sports Med 40:114-8. 2006..To evaluate the effect of massage on force production and neuromuscular recruitment...
- Changes in stretch reflex excitability are related to "giving way" symptoms in patients with anterior cruciate ligament ruptureM Melnyk
Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany
J Neurophysiol 97:474-80. 2007A rupture of the anterior cruciate ligament (ACL) usually leads to an altered stretch reflex excitability of the thigh muscles that stabilize the knee. The purpose of this study was to quantitatively assess reflex activity in the m...
- Modulation of reflex responses in hand muscles during rhythmical finger tasks in a subject with writer's crampRuiping Xia
Department of Physiology, School of Medical Sciences, University of Bristol, Bristol, UK
Exp Brain Res 177:573-8. 2007..Results from this case study support clinically identified task-specific feature of focal hand dystonia...
- Electromechanical delay of the knee extensor muscles is not altered after harvesting the patellar tendon as a graft for ACL reconstruction: implications for sports performanceA D Georgoulis
Orthopaedic Sports Medicine Center, Department of Orthopaedic Surgery, University of Ioannina, P O BOX 1330, Ioannina 45110, Greece
Knee Surg Sports Traumatol Arthrosc 13:437-43. 2005..The EMD, as a component of the stretch reflex, is important for the utilization of the stored energy in the series elastic component and thus, optimal ..
- Attenuation of the effect of remote muscle contraction on the soleus H-reflex during plantar flexionT Tazoe
Division of Health and Sport Education, United Graduate School of Education, Tokyo Gakugei University, Chiba City, Japan
Clin Neurophysiol 116:1362-9. 2005....
- The tonic stretch reflex and spastic hypertonia after spinal cord injuryAdam J Woolacott
School of Biomedical Sciences, University of Sydney, PO Box 170, Lidcombe, NSW, 1825, Australia
Exp Brain Res 174:386-96. 2006..of joints to passive rotation and the possible origin of this increased resistance in the induced tonic stretch reflex (TSR)...
- Acute passive stretching alters the mechanical properties of human plantar flexors and the optimal angle for maximal voluntary contractionDerek E Weir
School of Health and Human Performance, Dalhousie University, Halifax, Nova Scotia, B3H3J5, Canada
Eur J Appl Physiol 93:614-23. 2005..05). The decrease in MVC during post-test(1) was attributed to changes in the mechanical properties of PF and not to reduced muscle activation...
- Changes in the soleus stretch reflex at different pedaling frequencies and crank loads during pedalingBirgit Larsen
Center for Sensory Motor Interaction SMI, Dept of Health Science and Technology, Aaborg University, Aalborg, Denmark
Motor Control 10:265-79. 2006The influence of pedaling frequency and crank load on the sensitivity of the soleus short latency stretch reflex (SLR) was examined in nine healthy subjects during pedaling by the use of a custom-built robotic actuator...
- Joint-afferent-mediated muscle activations yield a near-maximum torque response of the quadricepsYasin Y Dhaher
Department of Physical Medicine and Rehabilitation, Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Northwestern University, 345 E Superior Street, Room 1406, Chicago, IL 60611, USA
J Neurosci Methods 133:1-17. 2004..It was also concluded that this control strategy was near optimal when mediated by joint afferents...
- Paraspinal muscle reflex dynamicsK P Granata
Motion Analysis and Motor Performance Laboratory, University of Virginia, 2270 Ivy Road, Charlottesville, VA 22903, USA
J Biomech 37:241-7. 2004..Results agree with a simple systems model of the neuromechanical feedback behavior. The relative contribution of the reflex dynamics to spinal stability must be investigated in future research...
- Reflex muscle contractions can be elicited by valgus positional perturbations of the human kneeY Y Dhaher
Sensory and Motor Performance Program, Department of Physical Medicine and Rehabilitation, Rehabilitation Institute of Chicago, Chicago, IL 60611, USA
J Biomech 36:199-209. 2003..valgus joint deflection in the vasti muscles had longer onset latencies (range: 83-92ms) than did the stretch reflex in the same muscles (latencies: 29-31ms)...
- The history of contraction of the wrist flexors can change cortical excitabilityMeg Stuart
School of Biomedical Sciences, Faculty of Health Sciences, University of Sydney, Sydney, Australia
J Physiol 545:731-7. 2002....
- Plantar flexor stretch reflex responses to whole body loading/unloading during human walkingMichael J Grey
Center for Sensory Motor Interaction, Aalborg University, Fredrik Bajersvej 7 D3, DK 9220, Aalborg Øst, Denmark
Eur J Neurosci 16:2001-7. 2002..The objective of this study was to investigate the contribution of load receptor feedback to the compensatory stretch reflex response...
- Effects of tendon vibration on the spatiotemporal characteristics of human locomotionSabine M P Verschueren
Motor Control Laboratory, Department of Kinesiology, Katholieke Universiteit Leuven, Tervuursevest 101, 3001 Leuven, Belgium
Exp Brain Res 143:231-9. 2002....
- Short-latency stretch reflex modulation in response to varying soleus muscle activitiesK Ogiso
Neuromuscular Research Center, Department of Biology of Physical Activity, University of Jyvaskyla, 40100, Jyvaskyla, Finland
J Electromyogr Kinesiol 12:17-26. 2002..investigation examined the effect of various types of background muscle contractions on the short-latency stretch reflex (SLR) elicited from the soleus muscle while subjects were in a sitting position...
- Vestibular influences on human postural control in combinations of pitch and roll planes reveal differences in spatiotemporal processingM G Carpenter
Department of Kinesiology, University of Waterloo, Ontario, Canada
Exp Brain Res 140:95-111. 2001..Our results indicate that vestibular influences are earlier for the pitch plane and are directed to leg muscles, whereas roll control is later and focused on trunk muscles...
- Short latency heteronymous excitatory and inhibitory reflexes between antagonist and heteronymous muscles of the human shoulder and upper limbV M McClelland
Developmental Neuroscience, Department of Child Health, University of Newcastle upon Tyne, Royal Victoria Infirmary, Queen Victoria Road, NE1 4LP, Newcastle upon Tyne, UK
Brain Res 899:82-93. 2001..Later excitatory and inhibitory reflexes with central delays of up to 15 ms also occurred. The probability of evoking excitation or inhibition in Tri or Bi changed with the different elbow positions...
- Effects of changing wrist positions on finger flexor hypertonia in stroke survivorsSheng Li
School of Physical Therapy and Rehabilitation Science, University of Montana, Missoula, 59812, USA
Muscle Nerve 33:183-90. 2006..to establish whether spastic hypertonia results from changes in intrinsic muscle properties or from altered stretch reflex properties...
- Differences in coding provided by proprioceptive and vestibular sensory signals may contribute to lateral instability in vestibular loss subjectsJohn H J Allum
Department of ORL, University Hospital, Basel, Switzerland
Exp Brain Res 184:391-410. 2008....
- The influence of increased muscle spindle sensitivity on Achilles tendon jerk and H-reflex in relaxed human subjectsChristiane Rossi-Durand
Laboratoire de Neurobiologie Integrative et Adaptative, UMR 6149, Universite de Provence CNRS, 52 Faculté de St Jérôme, Case 362, 13397 Marseille Cedex 20, France
Somatosens Mot Res 19:286-95. 2002..The possibility that a mental computation task may also operate by reducing the level of presynaptic inhibition is discussed on the basis of H-reflex facilitation...
- Muscular torque generation during imposed joint rotation: torque-angle relationships when subjects' only goal is to make a constant effortP R Burgess
Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Northwestern University Medical School, 345 East Superior Street, Room 1406, Chicago, IL 60611, USA
Somatosens Mot Res 19:327-40. 2002..falling torque) during the later part of an eccentric movement would not have occurred if a stabilizing stretch reflex had been present...
- Post-activation depression of the soleus H-reflex in the elderlyC T Robertson
Motor Control Laboratory, Department of Kinesiology, Program in Neural Science, HPER 112, Indiana University, Bloomington, IN 47405, USA
Electromyogr Clin Neurophysiol 43:103-11. 2003..This study examined the effect of age on the spinal mechanism post-activation depression (PD) and its relationship with postural sway...
- Reflex and non-reflex torque responses to stretch of the human knee extensorsN Mrachacz-Kersting
Center for Sensory Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D 3, 9220, Aalborg, Denmark
Exp Brain Res 151:72-81. 2003..This study implemented a unique hydraulic actuator to study the contributions of the knee extensor stretch reflex to the overall knee joint torque...
- Differences in kinematic parameters and plantarflexor reflex responses between manual (Ashworth) and isokinetic mobilisations in spasticity assessmentGiuseppe Rabita
Laboratoire d Etudes de la Motricite Humaine, Faculté des Sciences du Sport et de l EP de l Université de Lille 2, France
Clin Neurophysiol 116:93-100. 2005..first to compare the kinematic parameters of imposed ankle mobilizations measured during Ashworth or isokinetic tests and, second, to better understand why the stretch reflex was more or less easily elicited by one method or the other.
- Non-linear Characterization of the Stretch Reflex Arc and its NeuromodulationAMAN BEHAL; Fiscal Year: 2011DESCRIPTION (provided by applicant): The Stretch Reflex Arc (SRA) is the simplest and most fundamental regulatory mechanism of posture control and muscle contraction...
- SUPRASPINAL CONTROL OF SPINAL CORD PLASTICITYXiang Yang Chen; Fiscal Year: 2012..Operant conditioning of the spinal stretch reflex (or tendon jerk) or its electrical analog, the H-reflex, is a simple model for exploring long-term supraspinal ..
- Changing a reflex to improve locomotionAiko Thompson; Fiscal Year: 2013..Altered spinal reflex pathways contribute to these problems. In this population, exaggerated stretch reflex and abnormal reflex modification of the ankle extensors are frequently observed...
- Structure and function of the fingers tendinous apparatusFrancisco J Valero-Cuevas; Fiscal Year: 2013..Validate against data in the literature. Single Muscle Hypothesis: Muscle function (e.g., tone, stretch reflex) emerges naturally from specific combinations of neuronal background activity and pathway gains...
- Hand Sensorimotor Function and Carpal Tunnel SyndromeZong Ming Li; Fiscal Year: 2013..e., CTS) on the central nervous system by evaluating corticomuscular coupling and stretch reflex. The third aim is to identify novel biomechanical and neurophysiological markers for CTS cases using machine ..
- An In Vitro Model of Stem Cell Innervation of MyotubesJames J Hickman; Fiscal Year: 2013..We will also initiate experiments to increase the throughput of first the motoneurons to muscle segment of the stretch reflex are and then for the entire reflex arc...
- ADAPTIVE PLASTICITY IN THE SPINAL STRETCH REFLEXJONATHAN RICKEL WOLPAW; Fiscal Year: 2012Title: "ADAPTIVE PLASTICITY IN THE SPINAL STRETCH REFLEX" ABSTRACT Throughout life, the nervous system acquires and maintains many different motor skills. How this is accomplished is one of the central problems of neuroscience research...
- Stretch Reflex Contributions to Multijoint CoordinationEric J Perreault; Fiscal Year: 2013....
- Sympathetic Nerve Activity and Fine Motor SkillsMinoru Shinohara; Fiscal Year: 2007..To achieve these aims, MSNA, force fluctuations, single motor unit activity, stretch reflex, and H-reflex during steady contractions of a hand muscle will be measured when MSNA is experimentally ..
- SPINAL CONTROL OF BALANCE IN THE ELDERLYDAVID KOCEJA; Fiscal Year: 2000..humans and primates have been shown to be successful at either increasing or decreasing the gain of the spinal stretch reflex. The purpose of these experiments will be to systematically examine the function of the elderly neuromuscular ..
- PHYSIOLOGICAL EFFECTS OF INCOMPLETE SPINAL CORD INJURYWILLIAM RYMER; Fiscal Year: 2000..is defined as an increased resistance of a limb to externally imposed joint extension, is caused by increased stretch reflex excitability...
- ACL injury mechanisms & offaxis neuromuscular diagnosis & trainingLi Qun Zhang; Fiscal Year: 2010....
- NEUROMECHANICS OF KNEE EXTENSOR/MALALIGNMENTLi Qun Zhang; Fiscal Year: 2002..Changes in the above properties induced by patellar malalignment and correction induced by patellar taping will be quantified using the above designs. ..
- Reflex control of multi-joint mechanics following strokeERIC PERREAULT; Fiscal Year: 2007..The focus of this particular study is on the stretch reflex contributions to the regulation of human arm mechanics, and how this spinally mediated regulation is altered ..
- Developing an intelligent & portable stretching deviceLi Qun Zhang; Fiscal Year: 2006..The overall objectives of the Phase II project are to develop an effective, portable, low-cost, and user-friendly intelligent stretcher, suitable and economical for patients to use in clinic or home and ready for commercialization. ..
- Neuromechanical changes caused by stroke & stretchingLi Qun Zhang; Fiscal Year: 2006..The long-term goals are to provide effective, convenient, and low-cost treatments of spastic limbs in neurologically impaired patients with quantitative outcome evaluation in multiple aspects. ..
- The utility of rTMS to enhance hand function in strokeGwyn Lewis; Fiscal Year: 2007..This will be applicable to a large population of US adults with deficits in hand function resulting from stroke. [unreadable] [unreadable] [unreadable]..
- Bilateral activation in upper-limb stroke rehabilitationGwyn Lewis; Fiscal Year: 2006....
- Natural History of Muscular & Reflex Changes in StrokeMEHDI MIRBAGHERI; Fiscal Year: 2004..The changes in passive and intrinsic stiffness are likely to be highly correlated with severity of spasticity and inversely correlated with recovery of function. ..
- Spinal Load and Stability during PushingMichael Madigan; Fiscal Year: 2005..e. the influence of the inertial mass of the pushed object, the velocity of movement, and compare the spinal loads and stability of pushing a cart versus pushing an overhead lift-assist device. ..
- Linking motor imagery to motor executionSheng Li; Fiscal Year: 2006..unreadable] [unreadable] [unreadable] [unreadable]..
- Reflex Contributions to Joint StabilityYASIN DHAHER; Fiscal Year: 2008..abstract_text> ..
- Graduate Medical Education in GeneticsMargaret McGovern; Fiscal Year: 2004..abstract_text> ..
- EEG BASED BRAIN COMPUTER INTERFACEJONATHAN WOLPAW; Fiscal Year: 2003..If successful, this work is likely to improve performance and versatility of EEG-based communication and interface systems. ..
- Reflex Regulation of Motor function in Human SCIBRIAN D contact SCHMIT; Fiscal Year: 2010..This study has important implications for therapies aimed at restoring movement in SCI and for the treatment of spasticity to improve functional movements. ..
- BODY WEIGHT SUPPORTED AMBULATION TRAINING AFTER SCIBlair Calancie; Fiscal Year: 2004..abstract_text> ..
- Hip Angle and Limb Load Affect Reflexes Post-StrokeMichael Lewek; Fiscal Year: 2006..unreadable] [unreadable]..
- AUTONOMIC REGULATION IN HEART FAILURELawrence Sinoway; Fiscal Year: 2003..This K24 award will reduce the PI's administrative and clinical commitment and thereby allow him to continue his human investigative work and to spend more time training talented patient-oriented investigators. ..
- HYPERTENSION, RISK FOR HYPERTENSION AND HYPOALGESIAChristopher France; Fiscal Year: 2003..This information could be used to identify the best candidates for behavioral and other risk reduction efforts. ..
- QUANTIFICATION OF CARTILAGE AND BONE DEFECTS USING MRIChris Mc Gibbon; Fiscal Year: 2002..Hypothesis: the analytical model can predict AC and SB thickness within 1 voxel dimension at a 95 percent confidence level and exhibit defect detection sensitivity and specificity greater than 98 percent. ..
- Preventing Adverse Reactions in Novice Blood DonorsChristopher R France; Fiscal Year: 2010..Because we are working directly with the American Red Cross, our findings can be quickly translated into practice. ..
- SPINAL MECHANISMS REGULATING MUSCLE AND LIMB MECHANICSMartin Pinter; Fiscal Year: 2006..abstract_text> ..
- Comparison of post-SCI locomotor training techniquesEDELLE FIELD FOTE; Fiscal Year: 2006..In addition, they will provide information about neural and cardiorespiratory bases of these functional changes. ..
- Diseases of the Vestibular SystemRobert Baloh; Fiscal Year: 2006..abstract_text> ..
- DIZZINESS IN OLDER PEOPLERobert Baloh; Fiscal Year: 2006..By continuing this longitudinal study of carefully studied older patients and controls, our multidisciplinary research team is in a good position to achieve our goals. ..
- Prenatal Exposure to Alcohol and Motor Timing BehaviorRoger Simmons; Fiscal Year: 2005..abstract_text> ..
- ROLE OF INTERNEURONAL CIRCUITS IN HUMAN SPINAL CORD INJUBRIAN SCHMIT; Fiscal Year: 2004..The principles developed in this study will form the basis for new treatment modalities for spasticity in spinal cord injury. ..
- Muscle Properties During Normal MovementsTHOMAS SANDERCOCK; Fiscal Year: 2006..These results will be important for rehabilitation engineering, providing a quantitative guide for muscle selection in tendon transfer surgeries and functional neuromuscular stimulation. ..
- Multi-Joint Sensorimotor Dysfunction of the Stroke ArmBRIAN SCHMIT; Fiscal Year: 2008..In addition, conventional therapies may be applied more efficiently or effectively using the principles that will be demonstrated by this study. ..
- Autonomic Neurovascular RegulationLawrence Sinoway; Fiscal Year: 2008..Core Laboratory B will be a physiology core. All projects will use this core. ..
- SPINAL MOTOR CONDUCTION AND RECOVERY AFTER HUMAN SCIBlair Calancie; Fiscal Year: 2009..A slow-release formulation the K-channel blocker 4-aminopyridine will be tested for its effects on conduction in some cases. ..
- Hormone Mediated Knee Joint Laxity and NeuromechanicsSANDRA SHULTZ; Fiscal Year: 2009....