Police Sports Education Centre, Abu Dhabi Police, 253 Abu Dhabi, UAE.
Department of Kinesiology, Kansas State University, Manhattan, KS 66506, USA.
Int J Environ Res Public Health. 2020 Sep 18;17(18):6825. doi: 10.3390/ijerph17186825.
This study investigated differences in the body composition of police officers from different occupational groups and the moderation effects of leisure time physical activity (LTPA). A sample of 237 police officers (special anti-terrorist unit, gendarmerie, firefighters, and general duties) participated in the study. Body mass index (BMI), percent of body fat (%BF), percent of skeletal muscle mass (%SMM), and index of hypokinesia (IH) were assessed using a multichannel bioelectric impedance analyzer and officers reported the amount of LTPA using an international physical activity questionnaire. The sample was divided in three groups relative to LTPA, sedentary (0-149 min/week), moderately active (150-299 min/week), and very active (300+ min/week). Multiple analysis of variance (4 × 3) was used to analyze if occupational groups differed based solely on occupation, if officers from the same occupation differed in muscularity and fatness based on LTPA, and if any differences in body composition occurred between officers from different occupations with the same level of LTPA. Police officers from more physically demanding occupations demonstrated lower %BF and IH, while having higher %SMM. This was also observed among the officers of the same occupation who reported a higher LTPA, while officers who reported very high LTPA had similar body composition.
本研究调查了不同职业群体警察的身体成分差异以及休闲时间体力活动（LTPA）的调节作用。研究对象为 237 名警察（特警、宪兵、消防员和普通警察）。使用多通道生物电阻抗分析仪评估身体质量指数（BMI）、体脂肪百分比（%BF）、骨骼肌百分比（%SMM）和低活动指数（IH），并使用国际体力活动问卷报告警察的 LTPA 量。根据 LTPA，将样本分为三组，即久坐组（0-149 分钟/周）、中度活跃组（150-299 分钟/周）和非常活跃组（300 分钟/周以上）。采用 4×3 多重方差分析，分析职业群体是否仅根据职业存在差异，是否来自同一职业的警察是否因 LTPA 而在肌肉和脂肪方面存在差异，以及具有相同 LTPA 的不同职业警察之间的身体成分是否存在差异。从事体力要求较高职业的警察体脂肪百分比和 IH 较低，而骨骼肌百分比较高。在报告较高 LTPA 的同一职业警察中也观察到了这一点，而报告非常高 LTPA 的警察的身体成分则相似。
