The risk factors for injuries in parachuting and load exposure in the training of Chinese paratroopers
| Autor: | Lei, Wu, Jian, Li, Zhenglun, Wang, Zhongren, Wang, Tao, Liu, Jingzhi, Sun, Ruijie, Ling, Lihua, He, Sheng, Wang, Lei, Yang |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Work. :1-10 |
| ISSN: | 1875-9270 1051-9815 |
| Popis: | BACKGROUND: Parachutists are generally recognized as a “high-risk” group among military personnel. However, the findings came mostly from data analysis without soldiers as subjects. OBJECTIVE: This study aimed to investigate the injury prevalence in Chinese paratroopers on-site and determine the relationship between injury and risk factors encountered during parachuting and land-based training. METHODS: This study consisted of a field study with questionnaire and an experiment on muscle load during the simulated training exercise of platform jumping with surface electromyography (EMG), in which 7230 paratroopers and 38 soldiers were involved respectively. Chi-square test was used for the injury rate analysis, ANOVA and t-test for comparison of EMG data, and logistic regression for the analysis of multiple factors. Taking both intensity and time into consideration, jump-years (J-yrs) was used as a complex indicator for exposure to parachuting. Either injury per 1000 jumps or injured persons per 100 soldiers were calculated as injury prevalence. RESULTS: The overall injury rate among Chinese parachutists was found to be 13.9 injuries per 1000 parachute jumps and 24.5% based on personnel. The person-based injury rate increased with the exposure level significantly (χ2 = 142.06, 2-sided, P |
| Databáze: | OpenAIRE |
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