A physical fitness–evaluation system for outstanding Chinese male boxers

Author:

Wu Guodong1,Guo Yuqiang2,Zhang Liqin3,Chen Chao2

Affiliation:

1. Jiangsu Vocational Institute of Commerce, Nanjing, China

2. School of Athletic Performance, Shanghai University of Sport, Shanghai, China

3. Inner Mongolia Institute of Sports Science, Inner Mongolia, China

Abstract

Background We sought to create a system to evaluate the physical fitness of outstanding Chinese male boxers that included an evaluation index, fitness level criteria, and modeling. This system was then used to assess athletes’ physical fitness and development. Methods Documentation, expert interviews, questionnaires, measurements, and statistical analyses were used in this study. Results The physical fitness evaluation system included the following three components: (1) body shape indexes (n = 4) including the backhand upper arm circumference differential, finger span height, Cottrell index, and pelvic width/shoulder width × 100; (2) body function indexes (n = 4) including relative maximum anaerobic power, relative maximal oxygen uptake, and creatine kinase and testosterone concentrations; and (3) athletic quality indexes (n = 9) including the speed strength index, the backhand straight punch strength, 3-min cumulative punching force, backhand straight punch reaction time, backhand straight punch speed, 30-m sprint, 9-min double shake jump rope, 1-min double shake jump rope, and sitting forward bend tests. A five-point grading system to evaluate physical fitness was established and an evaluation model was proposed. Conclusions The reference values were determined to be objective and effective using a back substitution process. Individual and differential assessments reflected the athletes’ level of physical fitness. The critical values were established under the best and worst conditions and the optimal values were found to be valid and effective.

Funder

Scientific and Technological Services for Physical Fitness Training of Key Athletes of the Chinese Boxing Team in 2022, China

Publisher

PeerJ

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