Evaluation of optimal labor intensity with relative heart rate at plateau

Gang ZHANG; Peng LI; Kaifa WANG; Yuqi GAO

doi:10.16016/j.1000-5404.201912008

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Evaluation of optimal labor intensity with relative heart rate at plateau

Military Medicine (the Project of Chongqing Press Fund in 2019) | 更新时间：2026-01-09

- Evaluation of optimal labor intensity with relative heart rate at plateau
- Journal of Third Military Medical University Vol. 42, Issue 9, Pages: 948-952(2020)
- 作者机构：
  
  1.400038 重庆，陆军军医大学(第三军医大学):高原军事医学系，极端环境医学教育部重点实验室，军队高原医学重点实验室
  2.400038 重庆，陆军军医大学(第三军医大学):高原军事医学系，极端环境医学教育部重点实验室，生物医学工程系
- 作者简介：
- 基金信息：
  
  the Major Project of "Twelfth Five-year Plan" for Logistic Scientific Research of PLA(AWS14L005)
- DOI：10.16016/j.1000-5404.201912008
  CLC： R134.1;R331.31;R339.54
- Received：02 December 2019，
  
  Revised：2020-03-18，
  
  Published：15 May 2020
- 稿件说明：
移动端阅览
Gang ZHANG, Peng LI, Kaifa WANG, et al. Evaluation of optimal labor intensity with relative heart rate at plateau[J]. Journal of Third Military Medical University, 2020, 42(9): 948-952.
DOI：

Gang ZHANG, Peng LI, Kaifa WANG, et al. Evaluation of optimal labor intensity with relative heart rate at plateau[J]. Journal of Third Military Medical University, 2020, 42(9): 948-952. DOI： 10.16016/j.1000-5404.201912008.

摘要

目的

探讨高原环境运动负荷状态下人体心率变化规律，建立高原适宜劳动强度评价方法。

方法

采用亚极量踏阶运动试验，在平原(海拔300 m)和高原(海拔3 700、4 200、4 600和5 100 m)环境对228例受试者测定了不同运动负荷状态下运动心率和恢复心率，计算了最大氧耗量(VO

max)、心率变化幅度(

)和相对心率综合指标(

)。

结果

与平原相比，高原3 700~5 100 m受试者VO

max显著下降(41.74±2.96

41.25±2.84

41.08±2.35

41.60±2.82

46.61±3.74 mL·kg

-1

·min

-1

0.05)；相对心率综合指标

值随着心率变化幅度

值的增加而呈线性的增加(

=0.920+0.006

，

=0.794)；受试者中度劳动强度

值(1.42±0.21)显著小于重度劳动强度(1.52±0.23，

0.05)。

结论

高原环境人体劳动能力显著下降，高原适宜劳动强度宜在中度劳动强度范围内，

=1.42可作为高原环境中度劳动强度判定依据。

Abstract

Objective

To explore the law of the change of human heart rate under plateau environmental exercise load and establish an evaluation method of optimal labor intensity at plateau.

Methods

Sub-polar treadmill exercise test was used to measure the exercise heart rate and recovery heart rate of 228 subjects under different exercise load conditions at plain (altitude 300 m) and plateau (altitude 3 700

4 200

4 600 and 5 100 m). The maximum oxygen consumption (VO

max)

heart rate change amplitude (

) and relative heart rate comprehensive index (

) were calculated.

Results

Compared with the plain

max of subjects from 3 700 m to 5 100 m at high altitude was decreased significantly (41.74±2.96

41.25±2.84

41.08±2.35

41.60±2.82

46.61±3.74 mL·kg

-1

·min

-1

0.05). The

value of the relative heart rate comprehensive index was increases linearly with the increase of the

value of the heart rate change amplitude (

=0.920+0.006

=0.794). The

value of moderate labor intensity (1.42±0.21) was obviously lower than that of severe labor intensity (1.52±0.23

0.05).

Conclusion

Plateau environment significantly decreases the labor capacity of human body. So

the suitable labor intensity at plateau should be within the range of moderate labor intensity.

=1.42 can be used as the cut-off value for judging moderate labor intensity in plateau environment.

关键词

Keywords

references

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