Effect of exercise in a warm environment on circulating neutrophils Public Deposited

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  • March 20, 2019
Creator
  • Cooper, Erica S.
    • Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science
Abstract
  • The primary purpose of this investigation was to determine if exercise in the heat elicited a greater increase in the number of circulating neutrophils than exercise in a cool environment. The secondary purposes were to, 1) investigate the relationship between the change in core temperature (T(re)) and the degree of neutrophilia and 2) validate a previously stated hypothesis that T(re) must increase to greater than 38°C to elicit a significant rise in neutrophilia. Cycling for 40 minutes at 65% VO(2)peak caused neutrophilia, which was most evident two hours post-exercise. Moreover, exposure to the heat during exercise resulted in higher core temperatures and elicited a greater neutrophilia two hours post-exercise. No relationship was observed between a T(re) of 38°C and increases in the circulating neutrophil count. However, a T(re) of 38°C appears to contribute to exercise-induced neutrophilia since a greater exercise-induced T(re) occurred concomitantly with greater neutrophilia.
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  • In Copyright
Advisor
  • McMurray, Robert G.
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  • Open access
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