Pletcher Erin R, Lovalekar Mita, Coleman Lawrence C, Beals Kim, Nindl Bradley C, Allison Katelyn F
Department of Exercise Science, Thomas Jefferson University, Philadelphia, Pennsylvania.
Neuromuscular Research Laboratory, Department of Sports Medicine and Nutrition, University of Pittsburgh, Pittsburgh, Pennsylvania; and.
J Strength Cond Res. 2023 Apr 1;37(4):887-893. doi: 10.1519/JSC.0000000000004335. Epub 2022 Aug 24.
Pletcher, ER, Lovalekar, M, Coleman, LC, Beals, K, Nindl, BC, and Allison, KF. Decreased percent body fat but not body mass is associated with better performance on the Marine Corps Combat Fitness Test. J Strength Cond Res 37(4): 887-893, 2023-The military uses a variety of physical fitness tests to assess physical readiness. The Marine Corps designed the Combat Fitness Test (CFT) to emphasize functional fitness related to operational demands. The purpose of this study was to investigate the association between body mass (BM), fat free mass (FFM), and percent body fat (BF%) measured via air displacement plethysmography with CFT performance in male and female marines. Two-hundred 10 male (22.4 ± 2.6 years) and 84 female (22.6 ± 2.8 years) marines were grouped into quintiles according to BM (in kilograms), FFM (in kilograms), and BF%. Kruskal-Wallis test or 1-way analysis of variance were used to determine if significant differences in CFT total and component scores existed between the groups of subjects classified into quintiles of BM, FFM, and BF%. No significant differences in CFT scores were observed between BM quintile in either men or women. No significant differences in CFT scores were observed between FFM quintiles in men. Total CFT score ( p = 0.002), movement to contact (MTC; p = 0.014), maneuver under fire (MANUF; p = 0.008), and ammunition lift (AL; p = 0.014) were all significantly different among FFM quintiles in women. Total CFT score ( p = 0.007), MTC ( p = 0.001), and MANUF ( p = 0.022) were significantly different among BF% quintiles in men. Total CFT score ( p = 0.008), MTC ( p = 0.033), and AL ( p = 0.016) were significantly different among BF% quintiles in women. Male and female marines in the quintile with lowest BF% had better CFT scores than those in higher quintiles. Targeted physical training and nutrition considerations to optimize BF% may help improve military task performance.
普莱彻、E.R.、洛瓦莱卡尔、M.、科尔曼、L.C.、比尔斯、K.、宁德尔、B.C.和艾利森、K.F. 体脂百分比降低而非体重降低与海军陆战队战斗体能测试中的更好表现相关。《力量与体能研究杂志》37(4): 887 - 893, 2023 - 军方使用多种体能测试来评估身体准备情况。海军陆战队设计了战斗体能测试（CFT）以强调与作战需求相关的功能性体能。本研究的目的是调查通过空气置换体积描记法测量的体重（BM）、去脂体重（FFM）和体脂百分比（BF%）与男女海军陆战队队员CFT表现之间的关联。210名男性（22.4±2.6岁）和84名女性（22.6±2.8岁）海军陆战队队员根据体重（千克）、去脂体重（千克）和体脂百分比被分为五个五分位数组。使用克鲁斯卡尔 - 沃利斯检验或单因素方差分析来确定在按体重、去脂体重和体脂百分比五分位数分类的受试者组之间，CFT总分和各分项得分是否存在显著差异。在男性或女性的体重五分位数组之间未观察到CFT得分的显著差异。在男性的去脂体重五分位数组之间未观察到CFT得分的显著差异。在女性的去脂体重五分位数组中，CFT总分（p = 0.002）、接触移动（MTC；p = 0.014）、火力下机动（MANUF；p = 0.008）和弹药搬运（AL；p = 0.014）均存在显著差异。在男性的体脂百分比五分位数组中，CFT总分（p = 0.007）、MTC（p = 0.001）和MANUF（p = 0.022）存在显著差异。在女性的体脂百分比五分位数组中，CFT总分（p = 0.008）、MTC（p = 0.033）和AL（p = 0.016）存在显著差异。体脂百分比最低的五分位数组中的男女海军陆战队队员比更高五分位数组中的队员有更好的CFT得分。针对性的体能训练和营养考虑以优化体脂百分比可能有助于提高军事任务表现。
