Comparison of different indexes for assessing aerobic exercise capacity in military staff in high-altitude regions

Peng LI; Shenwei XIE; Bin XIANG; He HUANG; Gang ZHANG; Yuqi GAO

doi:10.16016/j.1000-5404.201909215

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Comparison of different indexes for assessing aerobic exercise capacity in military staff in high-altitude regions

更新时间：2026-01-09

- Comparison of different indexes for assessing aerobic exercise capacity in military staff in high-altitude regions
- Journal of Third Military Medical University Vol. 42, Issue 6, Pages: 588-593(2020)
- 作者机构：
- 作者简介：
- 基金信息：
  
  the Major Project of "Twelfth Five-year Plan" for Logistic Scientific Research of PLA(AWS14L005);the Key Special Program of "Thirteenth Five-year Plan" of Logistic Scientific Research of PLA(BWS17J031);the Special Program of Military Innovation Projects(16CXZ014)
- DOI：10.16016/j.1000-5404.201909215
  CLC：
- Received：28 September 2019，
  
  Published：30 March 2020
- 稿件说明：
移动端阅览
Peng LI, Shenwei XIE, Bin XIANG, et al. Comparison of different indexes for assessing aerobic exercise capacity in military staff in high-altitude regions[J]. Journal of Third Military Medical University, 2020, 42(6): 588-593.
DOI：

Peng LI, Shenwei XIE, Bin XIANG, et al. Comparison of different indexes for assessing aerobic exercise capacity in military staff in high-altitude regions[J]. Journal of Third Military Medical University, 2020, 42(6): 588-593. DOI： 10.16016/j.1000-5404.201909215.

摘要

Abstract

Objective

To compare the accuracy of different indexes based on heart rate and blood oxygen saturation level for evaluating aerobic exercise capacity among the military staff serving in high-altitude regions.

Methods

We recruited 240 subjects from the military staff stationed in high-altitude (ranging from 3 850 m

4 100 m and 4550 m) regions and 76 subjects serving in a low-altitude (below 500 m) region. We tested the performance of the subjects in 3000-meter running and assessed their Borg's rating of perceived exertion (RPE) during the exercise. The heart rate (HR) and blood oxygen saturation (SaO

) were recorded before

during and after two-level quantitative loaded step exercise to calculate the physical work capacity at 170/150 beats/min (PWC

170/150

)

maximal volume of oxygen uptake (VO

2max

) and step index. The difference in SaO

(ΔSaO

) before and after the exercise was analyzed

and the changes in blood lactate levels and myocardial enzymes were measured. The data were compared between the 2 altitude groups to analyze the correlation of the indexes with the exercise capacity of the subjects.

Results

At a high altitude

the elevation based on HR after intense exercise was more limited and showed a greater individual variation than at a low altitude

which caused PWC

170/150

-based assessment to show discrepancy between the fact that physical exercise capacity decreases with the elevation of altitudes and the performance of the individual subjects in 3000-meter running. VO

2max

estimated from immediate HR after low-intensity exercise and th

e step index derived from HRs during post-exercise recovery period were mildly correlated with the physical capacity and myocardial enzyme profiles of the subjects. ΔSaO

after step exercise showed the best correlation with the altitudes

physical exercise capacity

blood lactic acid level and myocardial enzyme profiles after exercise.

Conclusion

The decrease of oxygen saturation after exercise is a reliable index for evaluating aerobic exercise capacity among military staff in high-altitude regions.

关键词

Keywords

references

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