Schuna John M, Hilgers Sarah J, Manikowske Trista L, Tucker Jared M, Liguori Gary
Pennington Biomedical Research Center, Baton Rouge, LA, USA.
Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND, USA.
Int J Exerc Sci. 2013 Jul 1;6(3):188-198. doi: 10.70252/FYYG7160. eCollection 2013.
This study evaluated the validity of the current U.S. Department of Defense (DOD) circumference-based prediction equation for males to detect body composition changes in comparison to air-displacement plethysmography (ADP). Body composition was assessed using ADP and the DOD equation at the beginning and end of an academic school year among 21 male (18-29 years-old) Army ROTC cadets. Body mass significantly increased (+1.8 Kg) after 9 months. Significant method by time interactions for percent body fat (percent body fat), fat mass (FM), and fat-free mass were found ( = 0.022, = 0.023, = 0.023, respectively) as body composition changes were not tracked equally by the two methods. Regression and Bland-Altman analyses indicated a lack of agreement between methods as the DOD equation underestimated percent body fat and FM changes in comparison to ADP. Results suggest the DOD equation for males cannot adequately detect body composition changes following a small body mass gain.
本研究评估了美国国防部(DOD)目前基于周长的男性预测方程与空气置换体积描记法(ADP)相比,用于检测身体成分变化的有效性。在一学年开始和结束时,使用ADP和DOD方程对21名年龄在18 - 29岁的男性陆军后备军官训练队(ROTC)学员的身体成分进行了评估。9个月后体重显著增加(+1.8千克)。发现体脂百分比、脂肪量(FM)和去脂体重在方法与时间上存在显著交互作用(分别为= 0.022、= 0.023、= 0.023),因为两种方法对身体成分变化的跟踪并不相同。回归分析和布兰德 - 奥特曼分析表明,两种方法之间缺乏一致性,因为与ADP相比,DOD方程低估了体脂百分比和FM的变化。结果表明,男性的DOD方程无法充分检测到体重小幅增加后的身体成分变化。