Study on the correlation between aerobic exercise ability of acute exposed to simulate high altitude and body composition
10.3969/j.issn.1000-6710.2024.11.003
- VernacularTitle:人体成分与模拟急进高原环境有氧运动能力的相关性研究
- Author:
Simin ZHOU
1
;
Yu CUI
;
Chengzhong YANG
;
Jian HUANG
;
Jiaolin NING
;
Chao YUAN
;
Peng LI
Author Information
1. 陆军军医大学高原军事医学系高原作业医学教研室(重庆 400038);极端环境医学教育部重点实验室(重庆 400038);全军高原医学重点实验室(重庆 400038)
- Publication Type:Journal Article
- Keywords:
high altitude;
hypoxia;
VO2max;
body composition;
water
- From:
Chinese Journal of Sports Medicine
2024;43(11):868-872
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the relationship between body composition and aerobic exercise ca-pacity of individuals entering the plateau.Methods The body composition of forty-five subjects was as-sessed by using the bioelectrical impedance.All subjects underwent step movement with the step height of 40 cm,at a speed of 25 b/min for 5 minutes on the plain and the simulated low-pressure oxygen chamber at an altitude of 4000 m.Blood oxygen saturation and heart rate before and immediate-ly after exercise were recorded,and the VO2max(mL/kg·min)was calculated.Then,Multiple Linear Re-gression and Pearson correlation analysis were employed to explore the correlation between body compo-sition and VO2max.Moreover,subjects were divided into two groups according to the average value of each body component,and the effect of a single component on the decrease of VO2max in the plateau environment(ΔVO2max,plain-VO2max-plateau-VO2max)was investigated.Results Compared with on the plain,VO2max decreased significantly in the simulated plateau environment.The body composition of all subjects was within the normal range.However,the body mass index(BMI)of 6 subjects(accounting for 13％)exceeded 24 kg/m2.Their muscles of the upper limb and trunk were approximately 95％and required strengthening.Correlation analysis indicated that there was no significant correlation between body composition and VO2max.Compared with the low body water group,the ΔVO2max of the high body water group was significantly lower.Conclusion In the early stage of entering the plateau environment,the aerobic exercise capacity of the human body is reduced,and sufficient water within the normal range helps to improve the aerobic exercise capacity in such environment.
