消防员在职时比下班时更活跃。
Firefighters Are More Physically Active On-Duty Compared to Off-Duty.
机构信息
Department of Health, Human Performance, and Recreation, Pittsburg State University, Pittsburg, KS 66762, USA.
Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND 58108, USA.
出版信息
Int J Environ Res Public Health. 2020 Dec 15;17(24):9380. doi: 10.3390/ijerph17249380.
UNLABELLED
Physical inactivity, coupled with increasing obesity levels, in firefighters plays a key role in aggregated cardiovascular events. The purpose of this study was to investigate device-measured physical activity (PA) for firefighters while on- and off-duty to have a clearer understanding of their overall PA level.
METHODS
Twenty-nine career firefighters participated in this non-experimental, within-subjects study by wearing an accelerometer to assess PA intensities and step-count. Obesity was classified using body mass index (BMI). Dependent -tests were used to examine mean differences in PA intensities when on- and off-duty. Pearson product-moment correlations were used to assess the association between PA intensities when on and off-duty.
RESULTS
According to the World Health Organization BMI categorizations, 20 firefighters were overweight, 9 were obese, and, thus, none were normal weight. Only light PA (LPA) was statistically significant ( = 0.026) for on- and off-duty days with a small-to-medium effect size ( = 0.47), meaning that on average, firefighters performed more minutes of LPA when on-duty compared to off. There was a significant difference between on- (9060.2 ± 2636.4) and off-duty (7495.3 ± 2835.8) daily step counts ( = 0.011).
CONCLUSION
As the results demonstrate, there is a dire need for increased PA levels in firefighters while on- and off-duty.
未注明
消防员的身体不活动，加上肥胖水平的上升，在心血管事件的总发生率中起着关键作用。本研究的目的是调查消防员在岗和下岗时的设备测量体力活动（PA），以便更清楚地了解他们的整体 PA 水平。
方法
29 名职业消防员参加了这项非实验性、受试者内研究，他们佩戴加速度计来评估 PA 强度和步数。肥胖程度采用身体质量指数（BMI）来分类。使用依赖检验来检查在岗和下岗时 PA 强度的平均差异。使用皮尔逊积矩相关来评估在岗和下岗时 PA 强度之间的关联。
结果
根据世界卫生组织 BMI 分类，20 名消防员超重，9 名消防员肥胖，因此，没有正常体重的消防员。只有轻体力活动（LPA）在在岗和下岗日具有统计学意义（=0.026），具有小到中等的效应量（=0.47），这意味着消防员平均在岗时进行的 LPA 分钟数多于下岗时。在岗（9060.2±2636.4）和下岗（7495.3±2835.8）的每日步数有显著差异（=0.011）。
结论
正如结果所示，消防员在岗和下岗时都非常需要增加 PA 水平。
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