Results 151 to 160 of about 1,958 (187)

Mild Hypohydration Decreases Cycling Performance in the Heat

Medicine & Science in Sports & Exercise, 2013
Hypohydration exceeding 2% of body mass decreases exercise performance. However, the effects of mild hypohydration ( 0.05).The data showed that mild hypohydration decreased cycling performance, possible by inducing greater thermal and cardiovascular strain.
Costas N, Bardis, Stavros A, Kavouras, Lena, Kosti, Marietta, Markousi, Labros S, Sidossis   +4 more
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Hypohydration Adversely Affects Lactate Threshold in Endurance Athletes

Journal of Strength and Conditioning Research, 2002
The purpose of this investigation was to observe the effect of hypohydration (-4% body mass) on lactate threshold (LAT) in 14 collegiate athletes (8 men and 6 women; age, 20.9 +/- 0.5 years; height, 171.1 +/- 2.4 cm; weight, 64.8 +/- 2.3 kg; V(O)2 max, 62.8 +/- 1.9 ml x kg(-1) x min(-1); percentage of fat, 11.4 +/- 1.5%).
Robert W, Kenefick, Nicholas V, Mahood, Craig O, Mattern, Robert, Kertzer, Timothy J, Quinn   +4 more
openaire   +2 more sources

Differential effects of sauna-, diuretic-, and exercise-induced hypohydration

Journal of Applied Physiology, 1984
The physiological effects on submaximal and maximal exercise of three methods commonly used by athletes for achieving rapid weight loss were determined by measuring cardiorespiratory variables in 62 nonendurance athletes. A mean weight loss of 4.1% was achieved by those who followed either a sauna (SAU), diuretic (DIU), or exercise (ACT) protocol ...
J E, Caldwell, E, Ahonen, U, Nousiainen
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Hypohydration effects on thermoregulation during moderate exercise in the cold

European Journal of Applied Physiology, 2004
Hyperosmotic hypovolemia impairs vasoconstriction during sedentary cold exposure. The purpose of this study was to determine whether hypohydration alters thermoregulation and cardiovascular responses to exercise in cold air. On four occasions, eight males [35.1 (2.7) years, 175.5 (3.1) cm, 73.3 (2.6) kg, 57.2 (2.6) ml kg(-1) min(-1) maximal oxygen ...
Robert W, Kenefick, Nicholas V, Mahood, Melissa P, Hazzard, Timothy J, Quinn, John W, Castellani   +4 more
openaire   +2 more sources

Skin temperature modifies the impact of hypohydration on aerobic performance

Journal of Applied Physiology, 2010
This study determined the effects of hypohydration on aerobic performance in compensable [evaporative cooling requirement (Ereq) < maximal evaporative cooling (Emax)] conditions of 10°C [7°C wet bulb globe temperature (WBGT)], 20°C (16°C WBGT), 30°C (22°C WBGT), and 40°C (27°C WBGT) ambient temperature (Ta). Our hypothesis was that 4% hypohydration
R W, Kenefick, S N, Cheuvront, L J, Palombo, B R, Ely, M N, Sawka   +4 more
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Exercise temperature regulation in man during hypohydration and hyperhydration

Journal of Applied Physiology, 1971
Human body temperature regulation under various hydration regimes during exercise, noting changes related to ...
J E, Greenleaf, B L, Castle
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A preliminary study on how hypohydration affects pain perception

Psychophysiology, 2016
AbstractChronic pain is a prevalent health issue with one in five people suffering from some form of chronic pain, with loss of productivity and medical costs of chronic pain considerable. However, the treatment of pain can be difficult, as pain perception is complex and can be affected by factors other than tissue damage.
Tracey, Bear, Michael, Philipp, Stephen, Hill, Toby, Mündel   +3 more
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Effects of Varying Levels of Hypohydration on Ratings of Perceived Exertion

International Journal of Sport Nutrition, 1993
To investigate the effects of varying levels of hypohydration on ratings of perceived exertion (RPE) during moderate and heavy submaximal exercise, and at the lactate threshold (LT) and ventilatory threshold (VT), 9 male subjects cycled under states of euhydration (EU), moderate hypohydration (MH), and severe hypohydration (SH).
D R, Dengel, P G, Weyand, D M, Black, K J, Cureton   +3 more
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[The effect of pharmacological hypohydration on g-tolerance].

Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 2004
A group of 6 subjects (25-45 y.o.) participated in the studies of the tolerance of lateral (chest-back, +Gx) and longitudinal (head-pelvis, +Gz) loads before and after pharmacological hypohydration. Moderate hypohydration (diminution of the circulating plasma volume by 14% and body mass by 2% on the average) induced by diuretics does not lead to a ...
V B, Noskov, V Iu, Luk'ianiuk
openaire   +1 more source

Effects of hypohydration on lung functions in humans.

The American review of respiratory disease, 1987
We studied lung function tests during euhydration (Days 1 and 2), hypohydration (Days 3 and 4), and rehydration (Days 5, 6, and 7) in 6 normal subjects. Hypohydration was induced by administering chlorthalidone, and this resulted in a 4.5% loss of body weight. During hypohydration, lung volumes increased significantly.
S, Javaheri, C H, Bosken, S P, Lim, M N, Dohn, N B, Greene, R P, Baughman   +5 more
openaire   +1 more source