Research Topics
| R W KenefickSummaryAffiliation: University of New Hampshire Country: USA Publications
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Detail Information
Publications
Hypohydration adversely affects lactate threshold in endurance athletesRobert W Kenefick
Department of Kinesiology, University of New Hampshire, New Hampshire Hall, Durham, New Hampshire 03824, USA
J Strength Cond Res 16:38-43. 2002..From these results, we speculate that hypohydration did not significantly alter cardiovascular function or buffering capacity but did cause LAT to occur at a lower absolute exercise intensity...- Two short, daily activity bouts vs. one long bout: are health and fitness improvements similar over twelve and twenty-four weeks?Timothy J Quinn
University of New Hampshire, Department of Kinesiology, Robert Kertzer Exercise Physiology Laboratory, Durham, 03824, USA
J Strength Cond Res 20:130-5. 2006..This study suggests that an INT exercise program, which is incremental in nature, provides comparable, and in some cases greater, health and fitness benefits than those expected following traditional CON exercise training... - Plasma vasopressin and aldosterone responses to oral and intravenous saline rehydrationR W Kenefick
Department of Kinesiology, The University of New Hampshire, Durham, New Hampshire 03824, USA
J Appl Physiol 89:2117-22. 2000..9 vs. 0.45%) was not different given the degree of Dh (-4.5% body wt) and Rh and amount of time after Rh (55 min)... - Thirst sensations and AVP responses at rest and during exercise-cold exposureRobert W Kenefick
Department of Kinesiology, The University of New Hampshire, Durham, NH 03824, USA
Med Sci Sports Exerc 36:1528-34. 2004..The purpose of this study was to 1) determine the effect of hypohydration (HYPO) on thirst sensations during moderate exercise in the cold and 2) determine a possible mechanism for a cold-induced decline in thirst... - Hypohydration effects on thermoregulation during moderate exercise in the coldRobert W Kenefick
Department of Kinesiology, The University of New Hampshire, New Hampshire Hall, NH 03824, Durham, USA
Eur J Appl Physiol 92:565-70. 2004..These data demonstrate that moderate intensity exercise in the cold while hypohydrated does not alter metabolic heat production, skin temperatures and heat loss, nor does it increase thermoregulatory and cardiovascular strain... - Physiological variables at lactate threshold under-represent cycling time-trial intensityR W Kenefick
University of New Hampshire, Department of Kinesiology, Exercise Physiology Laboratory, Durham, New Hampshire 03824, USA
J Sports Med Phys Fitness 42:396-402. 2002..Prior work indicates however, that this may not be true during a cycling time-trial (TT). This investigation sought to compare physiological variables during a 20-k TT with those corresponding to the athlete's LT... - Effect of hydration status on thirst, drinking, and related hormonal responses during low-intensity exercise in the heatC M Maresh
Department of Kinesiology, University of Connecticut, Storrs, CT 06269 1110, USA
J Appl Physiol 97:39-44. 2004..Such changes result in similar fluid regulatory hormonal responses and comparable modifications in plasma volume regardless of preexercise hydration state... - Impact of starting strategy on cycling performanceC O Mattern
University of New Hampshire, Department of Kinesiology, Durham, NH 03824, USA
Int J Sports Med 22:350-5. 2001..The initially high LA resulting from the starting strategies of the SS TT and 15% above TT may have reduced the work capacity of active muscle... - Physiological determinants of cross-country ski racing performanceN V Mahood
Department of Kinesiology, Exercise Physiology Laboratory, University of New Hampshire, Durham, NH 03824, USA
Med Sci Sports Exerc 33:1379-84. 2001..Additionally, the UBTT exhibits potential as a simple field test to predict cross-country skiing performance over more sophisticated and costly laboratory and field testing... - Impact of a protective vest and spacer garment on exercise-heat strainSamuel N Cheuvront
Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Kansas Street, Natick, MA 01760 5007, USA
Eur J Appl Physiol 102:577-83. 2008..05). SR was higher (P < 0.05) in P and S versus B, but the magnitude of differences was small. A protective vest increases physiological strain independent of added load, while a spacer garment does not alter this outcome... - The impact of different pacing strategies on five-kilometer running time trial performanceAmy E Gosztyla
Department of Kinesiology, University of New Hampshire, Exercise Physiology Laboratory, Durham, NH 03824, USA
J Strength Cond Res 20:882-6. 2006..In order to optimize 5-km performance, runners should start the initial 1.63 km of a 5-km race at paces 3-6% greater than their current average race pace... - Rapid IV versus oral rehydration: responses to subsequent exercise heat stressRobert W Kenefick
U S Army Research Institute of Environmental Medicine, Natick, MA 01760, USA
Med Sci Sports Exerc 38:2125-31. 2006..This study sought to determine the effect of rapid intravenous (IV) versus oral (ORAL) rehydration immediately after dehydration, on cardiovascular, thermoregulatory, and perceptual responses during subsequent exercise in the heat... - Acute effects of cold exposure on central aortic wave reflectionDavid G Edwards
Department of Health, Nutrition, and Exercise Sciences, University of Delaware, Rust Arena 142 HPL, 541 South College Ave, Newark, 19716, USA
J Appl Physiol 100:1210-4. 2006..Additionally, alterations in central pressure during cold exposure were not evident from measures of brachial blood pressure... - Carbohydrate supplementation and immune responses after acute exhaustive resistance exerciseLara A Carlson
Dept of Natural Sciences, Castleton State College, Castleton, VT 05735, USA
Int J Sport Nutr Exerc Metab 18:247-59. 2008..The findings of this study indicate the following: ARE appears to evoke changes in immune cells similar to those previously reported during endurance exercise, and CHO ingestion attenuates lymphocytosis after ARE... - Thermoregulatory function during the marathonRobert W Kenefick
Thermal and Mountain Medicine Division, Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
Sports Med 37:312-5. 2007..The combined challenge of exercise and environment associated with marathon running can substantially challenge the human thermoregulatory system... - Heat exhaustion and dehydration as causes of marathon collapseRobert W Kenefick
US Army Research Institute of Environmental Medicine, Natick, Massachusetts 01760, USA
Sports Med 37:378-81. 2007..Other factors contributing to post-race collapse might include reduced skeletal muscle pump activity and dehydration and prior heat stress mediated changes in cerebrovascular responses to orthostatic challenges... - Important insight from the 2003 Singapore half-marathonSamuel N Cheuvront
Med Sci Sports Exerc 39:1883; author reply 1884. 2007 - Hydration at the work siteRobert W Kenefick
United States Army Research Institute of Environmental Medicine, 42 Kansas Street, Natick, MA 01760, USA
J Am Coll Nutr 26:597S-603S. 2007..Improved occupational guidelines for fluid and electrolyte replacement during hot weather occupational activities should be developed to include recommendations for fluid consumption before, during, and after work... - Wave reflection and central aortic pressure are increased in response to static and dynamic muscle contraction at comparable workloadsDavid G Edwards
Dept of Health, Nutrition, and Exercise Sciences, 541 South College Ave, 142 HPL, Newark, DE 19716, USA
J Appl Physiol 104:439-45. 2008..The present data suggest that wave reflection is an important determinant of the central blood pressure response during forearm muscle contractions...