TY - JOUR
T1 - The cardiovascular challenge of exercising in the heat
AU - González-alonso, José
AU - Crandall, Craig G.
AU - Johnson, John M.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - Exercise in the heat can pose a severe challenge to human cardiovascular control, and thus the provision of oxygen to exercising muscles and vital organs, because of enhanced thermoregulatory demand for skin blood flow coupled with dehydration and hyperthermia. Cardiovascular strain, typified by reductions in cardiac output, skin and locomotor muscle blood flow and systemic and muscle oxygen delivery accompanies marked dehydration and hyperthermia during prolonged and intense exercise characteristic of many summer Olympic events. This review focuses on how the cardiovascular system is regulated when exercising in the heat and how restrictions in locomotor skeletal muscle and/or skin perfusion might limit athletic performance in hot environments.
AB - Exercise in the heat can pose a severe challenge to human cardiovascular control, and thus the provision of oxygen to exercising muscles and vital organs, because of enhanced thermoregulatory demand for skin blood flow coupled with dehydration and hyperthermia. Cardiovascular strain, typified by reductions in cardiac output, skin and locomotor muscle blood flow and systemic and muscle oxygen delivery accompanies marked dehydration and hyperthermia during prolonged and intense exercise characteristic of many summer Olympic events. This review focuses on how the cardiovascular system is regulated when exercising in the heat and how restrictions in locomotor skeletal muscle and/or skin perfusion might limit athletic performance in hot environments.
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U2 - 10.1113/jphysiol.2007.142158
DO - 10.1113/jphysiol.2007.142158
M3 - Review article
C2 - 17855754
AN - SCOPUS:37749041454
SN - 0022-3751
VL - 586
SP - 45
EP - 53
JO - Journal of Physiology
JF - Journal of Physiology
IS - 1
ER -