Pi Qing, Xu Jiali, Sha Mian, Liu Xiangdong
School of Art, Shangrao Preschool Education College, 334000, Jiangxi Shangrao, P. R. China.
School of Physical Education, Shangrao Normal University, 334001, Jiangxi Shangrao, P. R. China.
BMC Sports Sci Med Rehabil. 2024 Feb 15;16(1):48. doi: 10.1186/s13102-024-00837-1.
The problem of overweight obesity and decrease in muscle strength among university students has become an indisputable fact. In this study, a comprehensive index reflecting obesity degree a body shape index (ABSI) and a comprehensive index reflecting muscle strength muscle strength index (MSI) were studied to analyze the cross-sectional correlations existing between them.
This study began recruiting participants and conducting the test survey in April 2022 and closed in July 2022. Basic condition, height, weight, waist circumference, grip strength, pull-up (boys), bent-leg sit-up (girls), and standing long jump were tested on 12,046 (boys: 6011, 49.90%) university students aged 19-22 years in China, and ABSI and MSI were calculated separately. ABSI was categorized into 5 groups according to age and sex, namely ABSI < 5th percentile (A), 5th ≤ ABSI < 25th percentile (B), 25th ≤ ABSI < 75th percentile (C), 75th ≤ ABSI < 95th percentile (D) and ABSI ≥ 95th percentile (E). The comparison of MSI between different ABSI groups was performed using effect size, and the association between them was performed by curve estimation analysis.
The association between ABSI and MSI of Chinese university students showed an inverted "U" curve. The effect of increased ABSI on MSI was greater in university girls compared to boys. The ABSI of boys was (0.080 ± 0.010) and MSI was (-0.005 ± 2.080); the ABSI of girls was (0.079 ± 0.008) and MSI was (-0.017 ± 1.867). Overall, university students ABSI was at a relatively high point for MSI between 0.050 and 0.100. The university students ABSI at 0.150 had an MSI of -1.229 for boys and - 2.779 for girls.
The ABSI of Chinese university students showed an inverted "U"-shaped curve relationship with MSI, and university students with low or high ABSI had lower MSI. The effect of increasing ABSI on the decrease of MSI was more obvious for girls than for boys.
大学生超重肥胖及肌肉力量下降问题已成为不争的事实。本研究对反映肥胖程度的综合指标即体脂指数（ABSI）和反映肌肉力量的综合指标即肌肉力量指数（MSI）进行研究，分析两者之间存在的横断面相关性。
本研究于2022年4月开始招募参与者并进行测试调查，于2022年7月结束。对中国12046名年龄在19至22岁的大学生（男生6011名，占49.90%）进行基本情况、身高、体重、腰围、握力、引体向上（男生）、屈膝仰卧起坐（女生）和立定跳远测试，并分别计算ABSI和MSI。ABSI按年龄和性别分为5组，即ABSI＜第5百分位数（A）、第5百分位数≤ABSI＜第25百分位数（B）、第25百分位数≤ABSI＜第75百分位数（C）、第75百分位数≤ABSI＜第95百分位数（D）和ABSI≥第95百分位数（E）。采用效应量对不同ABSI组间的MSI进行比较，并通过曲线估计分析两者之间的关联。
中国大学生ABSI与MSI之间呈倒“U”形曲线关系。与男生相比，ABSI增加对女生MSI的影响更大。男生的ABSI为（0.080±0.010），MSI为（-0.005±2.080）；女生的ABSI为（0.079±0.008），MSI为（-0.017±1.867）。总体而言，大学生ABSI在0.050至0.100之间时MSI处于相对较高水平。ABSI为0.150时，男生的MSI为-1.229，女生的MSI为-2.779。
中国大学生ABSI与MSI呈倒“U”形曲线关系，ABSI低或高的大学生MSI较低。ABSI增加对MSI降低的影响在女生中比在男生中更明显。
