The Effects of Repeated Thermal Stress on the Physiological Parameters of Young Physically Active Men Who Regularly Use the Sauna: A Multifactorial Assessment

The aim of this study was to determine the effects of thermal stress (TS) on changes in blood biochemical parameters and fluid electrolyte levels in young adult men with moderate and high levels of physical activity. Thirty men (22.67 ± 2.02 years) were exposed to four 12-min sauna sessions (tempera...

Full description

Saved in:
Bibliographic Details
Published in:International journal of environmental research and public health 2021-11, Vol.18 (21), p.11503
Main Authors: Podstawski, Robert, Borysławski, Krzysztof, Pomianowski, Andrzej, Krystkiewicz, Wioletta, Boraczyński, Tomasz, Mosler, Dariusz, Wąsik, Jacek, Jaszczur-Nowicki, Jarosław
Format: Article
Language:English
Subjects:
Blood pressure
Body mass
Cardiovascular system
Cholesterol
Exercise
Heart rate
Heat
High density lipoprotein
High temperature
Homeostasis
Humidity
Low density lipoprotein
Metabolism
Parameters
Physical activity
Physical fitness
Physiological effects
Physiology
Questionnaires
Relative humidity
Temperature effects
Thermal stress
Young adults
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study was to determine the effects of thermal stress (TS) on changes in blood biochemical parameters and fluid electrolyte levels in young adult men with moderate and high levels of physical activity. Thirty men (22.67 ± 2.02 years) were exposed to four 12-min sauna sessions (temperature: 90–91 °C; relative humidity: 14–16%) with four 6-min cool-down breaks. The evaluated variables were anthropometric, physiological, and hematological characteristics. The mean values of HRavg (102.5 bpm) were within the easy effort range, whereas HRpeak (143.3 bpm) values were within the very difficult effort range. A significant increase was noted in pO2 (p < 0.001), total cholesterol (p < 0.008), HDL (p < 0.006) and LDL cholesterol (p < 0.007). Significant decreases were observed in the SBP (by 9.7 mmHg), DBP (by 6.9 mmHg) (p < 0.001), pH (p < 0.001), aHCO3- (p < 0.005), sHCO3- (p < 0.003), BE (ecf) (p < 0.022), BE (B), ctCO2 (for both p < 0.005), glucose (p < 0.001), and LA (p < 0.036). High 72-min TS did not induce significant changes in the physiological parameters of young and physically active men who regularly use the sauna, excluding significant loss of body mass. We can assume that relatively long sauna sessions do not disturb homeostasis and are safe for the health of properly prepared males.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph182111503