The influence of thermoregulatory mechanisms on post-exercise hypotension in humans

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Abstract

1. To examine the influence of the rate of heat loss on the magnitude of post-exercise hypotension, subjects were exposed to three different environmental conditions during recovery from bicycle exercise. 2. When subjects recovered in warm conditions both core temperature (measured in the external auditory meatus) and mean skin temperature were significantly elevated 60 min after the cessation of exercise. This attenuation of heat loss was associated with a significant reduction in post-exercise mean arterial pressure. 3. In contrast, when subjects recovered in neutral or cool conditions both core temperature and mean arterial pressure had returned to baseline levels 60 min after exercise. 4. These results indicate that persistence of peripheral vasodilatation during recovery from exercise, and therefore the magnitude of post-exercise hypotension, is dependent upon thermoregulatory-induced changes in skin blood flow.

Original languageEnglish
Pages (from-to)231-41
Number of pages11
JournalThe Journal of Physiology
Volume470
Publication statusPublished - Oct 1993

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Post-Exercise Hypotension
Arterial Pressure
Hot Temperature
Temperature
Skin Temperature
Vasodilation
Skin

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title = "The influence of thermoregulatory mechanisms on post-exercise hypotension in humans",
abstract = "1. To examine the influence of the rate of heat loss on the magnitude of post-exercise hypotension, subjects were exposed to three different environmental conditions during recovery from bicycle exercise. 2. When subjects recovered in warm conditions both core temperature (measured in the external auditory meatus) and mean skin temperature were significantly elevated 60 min after the cessation of exercise. This attenuation of heat loss was associated with a significant reduction in post-exercise mean arterial pressure. 3. In contrast, when subjects recovered in neutral or cool conditions both core temperature and mean arterial pressure had returned to baseline levels 60 min after exercise. 4. These results indicate that persistence of peripheral vasodilatation during recovery from exercise, and therefore the magnitude of post-exercise hypotension, is dependent upon thermoregulatory-induced changes in skin blood flow.",
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year = "1993",
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journal = "Journal of Physiology - London",
issn = "0022-3751",
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TY - JOUR

T1 - The influence of thermoregulatory mechanisms on post-exercise hypotension in humans

AU - Franklin, P J

AU - Green, D J

AU - Cable, N T

PY - 1993/10

Y1 - 1993/10

N2 - 1. To examine the influence of the rate of heat loss on the magnitude of post-exercise hypotension, subjects were exposed to three different environmental conditions during recovery from bicycle exercise. 2. When subjects recovered in warm conditions both core temperature (measured in the external auditory meatus) and mean skin temperature were significantly elevated 60 min after the cessation of exercise. This attenuation of heat loss was associated with a significant reduction in post-exercise mean arterial pressure. 3. In contrast, when subjects recovered in neutral or cool conditions both core temperature and mean arterial pressure had returned to baseline levels 60 min after exercise. 4. These results indicate that persistence of peripheral vasodilatation during recovery from exercise, and therefore the magnitude of post-exercise hypotension, is dependent upon thermoregulatory-induced changes in skin blood flow.

AB - 1. To examine the influence of the rate of heat loss on the magnitude of post-exercise hypotension, subjects were exposed to three different environmental conditions during recovery from bicycle exercise. 2. When subjects recovered in warm conditions both core temperature (measured in the external auditory meatus) and mean skin temperature were significantly elevated 60 min after the cessation of exercise. This attenuation of heat loss was associated with a significant reduction in post-exercise mean arterial pressure. 3. In contrast, when subjects recovered in neutral or cool conditions both core temperature and mean arterial pressure had returned to baseline levels 60 min after exercise. 4. These results indicate that persistence of peripheral vasodilatation during recovery from exercise, and therefore the magnitude of post-exercise hypotension, is dependent upon thermoregulatory-induced changes in skin blood flow.

KW - Adult

KW - Aerobiosis

KW - Blood Pressure/physiology

KW - Body Temperature/physiology

KW - Body Temperature Regulation/physiology

KW - Exercise/physiology

KW - Heart Rate/physiology

KW - Humans

KW - Hypotension/physiopathology

KW - Male

KW - Oxygen Consumption/physiology

KW - Skin Temperature/physiology

KW - Vasodilation/physiology

M3 - Article

VL - 470

SP - 231

EP - 241

JO - Journal of Physiology - London

JF - Journal of Physiology - London

SN - 0022-3751

ER -