Chinese Journal of Tissue Engineering Research ›› 2021, Vol. 25 ›› Issue (14): 2231-2235.doi: 10.3969/j.issn.2095-4344.3102

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Anaerobic threshold intensity of adults aged 20 to 29: a speculation based on a 20-meter shuttle run test

Jia Xiao1, Xue Xiaojing2, Kong Zhenxing1, Yu Jingjing1, Sun Tingting1, Zhang Yimin1   

  1. 1Key Laboratory of Sports and Physical Health of the Ministry of Education, Beijing Sport University, Beijing 100084, China; 2China Association of Higher Education, Beijing 100191, China
  • Received:2020-04-11 Revised:2020-04-17 Accepted:2020-06-05 Online:2021-05-18 Published:2020-12-31
  • Contact: Zhang Yimin, Professor, Doctoral supervisor, Key Laboratory of Sports and Physical Health of the Ministry of Education, Beijing Sport University, Beijing 100084, China
  • About author:贾潇，男，1992年生，山东省临清市人，2017年北京体育大学毕业，硕士，助理实验师，主要从事运动促进健康的理论与实践研究。
  • Supported by:
    the National Key R&D Program of China, No. SQ2018YFC200013 (to ZYM [project participant])

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Abstract: BACKGROUND: The selection of appropriate exercise intensity is the key to develop personalized and accurate guidance scheme. The anaerobic threshold intensity is the best intensity to develop aerobic endurance. The measurement of the commonly used anaerobic threshold needs to be carried out in a laboratory environment. There are certain limitations, including complicated steps, high cost, and professional personnel required for calculation and analysis.
OBJECTIVE: To explore the feasibility of speculating the anaerobic threshold intensity by combining the results of 20-meter shuttle run test and the indicators of sex, age, height, body mass and exercise conditions, and to establish a regression equation to speculate the anaerobic threshold intensity of adults aged 20-29 years. 
METHODS: In total, 126 participants were enrolled, aged 20 to 29 years, including 61 males and 65 females. Information on sex, age, height, body mass and exercise conditions was collected and recorded. Then Graded Exercise Test was conducted using a cycle ergometer, to collect gas metabolism indicators and calculate the ventilatory threshold (VT). A 20-meter shuttle test was conducted at a later date. According to the correlation analysis results of all indicators, the regression equation was established using the method of stepwise regression, with the VT as dependent variable, the results of 20-meter shuttle run test and other relevant indicators as independent variables. 
RESULTS AND CONCLUSION: The laps of 20-meter shuttle run test was moderately correlated with the absolute value of VT (r=0.684, P < 0.01). The regression equation of speculating anaerobic threshold intensity in adults aged 20 to 29 is: VT (L/min) =-0.201+0.008 * laps+0.01 * weight + 0.096 * exercise condition (R=0.828, R2=0.686, SEE=0.210). To conclude, it is feasible using the 20-meter shuttle run test to speculate the anaerobic threshold intensity of adults aged 20 to 29, which can be used to guide the public to exercise scientifically, safely and effectively.

Key words: exercise, ventilator threshold, run, 20-meter shuttle run test, anaerobic threshold, intensity, regression equation

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