Illinois State University.
Pediatr Exerc Sci. 2021 Mar 27;33(2):90-94. doi: 10.1123/pes.2020-0108.
To investigate the association between muscular strength and metabolic syndrome (MetS), with a specific focus on the role of weight status, using a nationally representative sample of US youth.
The analysis included 409 boys and 415 girls from the 2011 to 2014 National Health and Nutrition Examination Survey between 12 and 18 years of age. The prevalence of MetS was defined using age- and sex-specific criteria for abdominal obesity, elevated triglycerides, blood pressure, fasting glucose, and low high-density lipoprotein (HDL) cholesterol. Strength was assessed via handgrip dynamometer and expressed as age- and sex-specific z scores of relative strength. Low strength was defined as a relative strength below the 25th percentile. Analyses controlled for age, sex, race/ethnicity, physical activity, and weight status.
The sample prevalence of MetS was approximately 5.3%. However, MetS prevalence was 18.5% in overweight/obese youth with low strength. The adjusted odds of MetS were 3.1 (95% confidence interval, 1.5-6.3, P < .001) times higher for overweight/obese youth with low strength versus sufficient strength.
Muscular strength is predictive of adolescent MetS, specifically in those with unhealthy weight status. Approximately one in 5 overweight/obese youth with low strength had MetS. These findings highlight the relevance of muscular strength in youth cardiometabolic morbidities.
利用美国青少年全国代表性样本，研究肌肉力量与代谢综合征（MetS）之间的关联，特别关注体重状况的作用。
该分析包括了 2011 年至 2014 年国家健康和营养检查调查中 12 至 18 岁的 409 名男孩和 415 名女孩。采用腹部肥胖、甘油三酯升高、血压、空腹血糖和低高密度脂蛋白（HDL）胆固醇的年龄和性别特定标准来定义 MetS 的患病率。通过握力计评估力量，并以年龄和性别特异性相对力量 z 分数表示。低力量定义为相对力量低于第 25 个百分位数。分析控制了年龄、性别、种族/民族、体育活动和体重状况。
该样本的 MetS 患病率约为 5.3%。然而，在低力量的超重/肥胖青少年中，MetS 的患病率为 18.5%。与足够力量的青少年相比，低力量的超重/肥胖青少年发生 MetS 的调整后比值比为 3.1（95%置信区间，1.5-6.3，P<0.001）。
肌肉力量是青少年代谢综合征的预测指标，特别是在体重不健康的青少年中。大约五分之一的低力量超重/肥胖青少年患有 MetS。这些发现强调了肌肉力量在青少年心脏代谢疾病中的相关性。
