Cardiorespiratory fitness mediates cortisol and lactate responses to winter and summer marches

Cardiorespiratory fitness mediates cortisol and lactate responses to winter and summer marches

The influence of homeostatically regulated physiological processes, including cardiorespiratory fitness (VO2max), on the response to physical stressors such as acclimatisation and marching, remains understudied. We aimed to investigate the effects of summer and winter acclimatisation and marching on...

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Bibliographic Details
Published in:Journal of medical biochemistry Vol. 43; no. 1; pp. 72 - 85
Main Authors: Pešić, Deniel, Đukić, Mirjana M, Stanojević, Ivan, Živkovć, Vladimir, Bolevich, Sergey, Bolevich, Stefani, Jakovljević, Vladimir
Format: Journal Article
Language:English
Published: Serbia Society of Medical Biochemists of Serbia, Belgrade 01-01-2024
Subjects:
acclimatisation
cardiorespiratory fitness
cate cholamines
cortisol
cory cycle
gluconeogenesis
glycolysis
lactate
marching
Original Paper
physical activity
thermoregulation
vo2max
cortisol
cardiorespiratory fitness
glycolysis
marching
Cory cycle
VO2MAX
lactate
gluconeogenesis
thermoregulation
acclimatisation
cate cholamines
physical activity
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Summary:The influence of homeostatically regulated physiological processes, including cardiorespiratory fitness (VO2max), on the response to physical stressors such as acclimatisation and marching, remains understudied. We aimed to investigate the effects of summer and winter acclimatisation and marching on cortisol levels and blood lactate, to gain insight into the role of these physiological processes in the stress response. Two groups of young Europeans, classified as poor (PCF; n=9) and good physical condition (GCF; n=21), based on a VO2MAX threshold of 40 mL O2/ kg/min, underwent 2-h March (6-7 km/h) in winter (5˚C) and summer (32˚C). Commercial tests, UniCel DxI Access Cortisol assay and EKF Biosen Clinic/GP assay were used for cortisol and lactate blood measurements (morning samples and those taken immediately after marches), respectively.
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Correspondence to: Mirjana Djukic, Fax: + 381 11 3972 840 mirjana.djukic@pharmacy.bg.ac.rs
ISSN:1452-8258
1452-8266
DOI:10.5937/jomb0-44369