Dewi Ratna Candra, Rimawati Nanda, Purbodjati Purbodjati
Faculty of Sport Science, Universitas Negeri Surabaya, Surabaya.
J Public Health Res. 2021 Apr 14;10(2):2230. doi: 10.4081/jphr.2021.2230.
Adolescents experience growth and significant changes in body composition which influence physical activity and response to sport or exercise. The level of physical fitness in adolescent girls is usually lower than that of boys, due to differences in body composition and levels of physical activity. The aim of this study was to examine the relationship between fat mass percentage, body composition, physical activity, and physical fitness.
This study used an analytical observational, and cross-sectional design with total samples consisting of 70 male and female students aged 14-15 years. They were selected through simple random sampling, and the data collected were anthropometric measurements, body composition, physical activity and physical fitness. In addition, the Pearson correlation test was used for data analysis.
The results showed that 68.57% of participants had a normal body mass index, 74.3% had moderate physical activity, and 44.28% had fat mass percentage including an obesity category and, 54.29% had low physical fitness. Furthermore, the Pearson test showed a significant relationship between physical activity, body mass index and fat mass percentage with physical fitness.
An increased fat mass percentage is associated with decreased levels of physical fitness. Furthermore, a good determinant of low physical fitness in obese conditions is the percentage of fat mass rather than BMI.
青少年经历身体成分的生长和显著变化，这会影响身体活动以及对运动或锻炼的反应。由于身体成分和身体活动水平的差异，青少年女孩的体能水平通常低于男孩。本研究的目的是探讨体脂百分比、身体成分、身体活动和体能之间的关系。
本研究采用分析性观察和横断面设计，总样本包括70名14 - 15岁的男女学生。他们通过简单随机抽样选取，收集的数据包括人体测量、身体成分、身体活动和体能。此外，采用Pearson相关性检验进行数据分析。
结果显示，68.57%的参与者体重指数正常，74.3%的参与者身体活动适度，44.28%的参与者体脂百分比包括肥胖类别，54.29%的参与者体能较低。此外，Pearson检验表明身体活动、体重指数和体脂百分比与体能之间存在显著关系。
体脂百分比增加与体能水平下降相关。此外，在肥胖情况下，体能低的一个良好决定因素是体脂百分比而非体重指数。
