Human Performance Research and Development, Canadian Forces Morale and Welfare Services, Ottawa, ON, Canada.
Personnel Support Program, Canadian Forces Leadership and Recruit School, Saint-Jean Garrison, Saint-Jean-sur-Richelieu, QC, Canada.
Mil Med. 2020 Aug 14;185(7-8):e1140-e1146. doi: 10.1093/milmed/usaa011.
Musculoskeletal injuries (MSKIs) and recruitment are major challenges faced by modern military forces. The Canadian Armed Forces uses a physical employment standard (PES) proxy to determine occupational fitness and job suitability. It is unknown whether the performance on the PES proxy can be also used as predictor of MSKIs. The purpose of this study was to investigate for relationships between age, sex, body composition, aerobic fitness, performance on the Canadian Armed Forces PES proxy (FORCE evaluation), and risk of sustaining a MSKI requiring intervention in the Training Rehabilitation Program (MSKI-TRP1) during Canadian Basic Military Qualification.
This was a retrospective analysis of MSKIs in recruits introduced in the Training Rehabilitation Program (TRP1) in 2016 and 2017. A two-tailed t-test and a multivariate stepwise logistic regression were completed to investigate the interrelationships of sex, age, FORCE performance (20 m rushes, sandbag lift, intermittent loaded shuttles, sandbag drag) and health-related characteristics (waist circumference, predicted peak oxygen consumption [$\dot{V}$O2peak]), and odds for sustaining a MSKI-TRP.
The MSKI-TRP1 intervention rate observed was 4.3%. Rehabilitation duration was an average (SD) of 87 (76) days; nearly 80% of MSKI-TRP were lower body injuries. MSKI-TRP recruits were older, had a lower score on FORCE, and had a larger mean waist circumference and lower $\dot{V}$O2peak than non-TRP1 recruits (all P < 0.01). Recruits with performance lower than 1 SD below mean on the 20 m rushes, intermittent loaded shuttle, or sandbag drag were 2.69 (1.89-3.83), 2.74 (1.91-3.95), and 2.26 (1.52-3.37) times more likely to sustain a MSKI-TRP1, respectively (all P < 0.01). Recruits with $\dot{V}$O2peak lower than 1 SD below mean were also 2.19 (1.30-3.70) times more likely to sustain a MSKI-TRP. Neither sex, age, nor waist circumference impacted the risk of MSKI-TRP1 when controlling for FORCE performance.
The Canadian Armed Forces PES proxy performance can be used to assess the odds of sustaining a MSKI-TRP1 in Canadian military recruit training.
肌肉骨骼损伤（MSKIs）和人员征募是现代军事力量面临的主要挑战。加拿大武装部队使用身体作业标准（PES）代理来确定职业健康和工作适应性。目前尚不清楚 PES 代理的表现是否也可作为肌肉骨骼损伤需要干预培训康复计划（MSKI-TRP1）的预测指标。本研究的目的是调查年龄、性别、身体成分、有氧适能、加拿大武装部队 PES 代理（FORCE 评估）表现与在加拿大基础军事资格培训期间发生肌肉骨骼损伤需要干预培训康复计划（MSKI-TRP1）的风险之间的关系。
这是对 2016 年和 2017 年引入培训康复计划（TRP1）的新兵中发生的肌肉骨骼损伤（MSKI）的回顾性分析。采用双尾 t 检验和多元逐步逻辑回归来调查性别、年龄、FORCE 表现（20 米冲刺、沙袋举升、间歇性负重穿梭、沙袋拖拽）和健康相关特征（腰围、预测峰值耗氧量[$\dot{V}$O2peak]）之间的相互关系，以及发生肌肉骨骼损伤-TRP1 的几率。
观察到的肌肉骨骼损伤-TRP1 干预率为 4.3%。康复时间的平均（SD）为 87（76）天；近 80%的肌肉骨骼损伤-TRP 为下肢损伤。与非 TRP1 新兵相比，肌肉骨骼损伤-TRP1 新兵年龄更大、FORCE 得分更低、平均腰围更大、$\dot{V}$O2peak 更低（均 P < 0.01）。20 米冲刺、间歇性负重穿梭或沙袋拖拽的表现低于平均值 1 个标准差以下的新兵发生肌肉骨骼损伤-TRP1 的几率分别为 2.69（1.89-3.83）、2.74（1.91-3.95）和 2.26（1.52-3.37）倍（均 P < 0.01）。$\dot{V}$O2peak 低于平均值 1 个标准差以下的新兵发生肌肉骨骼损伤-TRP1 的几率也高 2.19 倍（1.30-3.70）。在控制 FORCE 表现时，性别、年龄或腰围均不影响肌肉骨骼损伤-TRP1 的风险。
加拿大武装部队 PES 代理表现可用于评估加拿大新兵训练中发生肌肉骨骼损伤-TRP1 的几率。
