Knapik J J, Hauret K G, Arnold S, Canham-Chervak M, Mansfield A J, Hoedebecke E L, McMillian D
US Army Center for Health Promotion and Preventive Medicine Aberdeen Proving Ground, MD 21010, USA.
Int J Sports Med. 2003 Jul;24(5):372-81. doi: 10.1055/s-2003-40710.
This study examined injury and physical fitness outcomes in Basic Combat Training (BCT) during implementation of Physical Readiness Training (PRT). PRT is the U.S. Army's emerging physical fitness training program. An experimental group (EG, n = 1284), which implemented the PRT program, was compared to a control group (CG, n = 1296), which used a traditional BCT physical training program during the 9-week BCT cycle. Injury cases were obtained from recruit medical records and physical fitness was measured using the U.S. Army Physical Fitness Test (APFT, consisting of push-ups, sit-ups and a two-mile run). Injury rates were examined using Cox regression after controlled for initial group differences in demographics, fitness and other variables. Compared to the EG, the adjusted relative risk of a time-loss overuse injury in the CG was 1.5 (95 % confidence interval [CI] = 1.0 - 2.1, p < 0.01) for men and 1.4 (95 %CI = 1.1 - 1.8, p < 0.01) for women. There were no differences between groups for traumatic injuries. On the first administration of the final APFT, the EG had a greater proportion of recruits passing the test than the CG (men: 85 % vs. 81 %, p = 0.04; women: 80 % vs. 70 %, p < 0.01). After all APFT retakes, the EG had significantly fewer APFT failures than the CG among the women (1.6 % vs. 4.6 %, p < 0.01) but not the men (1.6 % vs. 2.8 %, p = 0.18); the gender-combined EG had a higher pass rate (1.6 % vs. 3.7 %, p < 0.01). Overall, the PRT program reduced overuse injuries and allowed a higher success rate on the APFT.
本研究调查了体能训练（PRT）实施期间基础战斗训练（BCT）中的损伤情况和体能训练成果。PRT是美国陆军新推出的体能训练项目。将实施PRT项目的实验组（EG，n = 1284）与在为期9周的BCT周期中使用传统BCT体能训练项目的对照组（CG，n = 1296）进行比较。从新兵医疗记录中获取损伤病例，并使用美国陆军体能测试（APFT，包括俯卧撑、仰卧起坐和两英里跑）测量体能。在控制了人口统计学、体能和其他变量的初始组间差异后，使用Cox回归分析损伤率。与实验组相比，对照组男性因过度使用导致的失时损伤的调整后相对风险为1.5（95%置信区间[CI] = 1.0 - 2.1，p < 0.01），女性为1.4（95%CI = 1.1 - 1.8，p < 0.01）。两组间创伤性损伤无差异。在首次进行最终APFT时，实验组通过测试的新兵比例高于对照组（男性：85%对81%，p = 0.04；女性：80%对70%，p < 0.01）。在所有APFT重测后，实验组女性的APFT未通过人数显著少于对照组（1.6%对4.6%，p < 0.01），但男性中无显著差异（1.6%对2.8%，p = 0.18）；综合性别来看，实验组的通过率更高（1.6%对3.7%，p < 0.01）。总体而言，PRT项目减少了过度使用损伤，并提高了APFT的成功率。
