Department of Sports Medicine, Norwegian School of Sport Sciences, Oslo, Norway.
Med Sci Sports Exerc. 2009 Jul;41(7):1361-7. doi: 10.1249/MSS.0b013e31819aaae5.
To examine the independent associations of muscle fitness and cardiorespiratory fitness with clustered metabolic risk in youth.
In 2005-2006, a cohort of 9- and 15-yr-olds (N = 2818) was randomly selected from all regions of Norway. The participation rate was 89% and 74% among the 9-and 15-yr-olds, respectively. We assessed muscular strength by measuring explosive, isometric, and endurance strength. Cardiorespiratory fitness was measured directly as peak oxygen uptake during a cycle ergometry test. Risk factors included in the composite risk factor score (sum of z-scores) were systolic blood pressure, triglyceride, high-density lipoprotein cholesterol, insulin resistance, and waist circumference.
Muscle fitness was negatively associated with clustered metabolic risk, independent of cardiorespiratory fitness, and after adjustment for age, sex, and pubertal stage (beta = -0.112, P < 0.001). Independent of muscle fitness, an inverse association was found between cardiorespiratory fitness and clustered metabolic risk (beta = -0.337, P < 0.001). Moreover, the odds ratios for having clustered risk in the least fit quartile compared with the most fit quartile were 7.2 (95% confidence interval (CI)=4.3-12.0) and 17.3 (95% CI = 9.2-32.7) for muscle fitness and cardiorespiratory fitness, respectively.
Our results show that muscle fitness and cardiorespiratory fitness are independently associated with metabolic risk in youth.
研究肌肉健康和心肺健康与青少年代谢风险聚集的独立相关性。
2005-2006 年，从挪威所有地区随机抽取了一组 9 岁和 15 岁的青少年（N=2818）。9 岁和 15 岁青少年的参与率分别为 89%和 74%。我们通过测量爆发力、等长力和耐力来评估肌肉力量。心肺健康是通过在测功计试验中直接测量峰值耗氧量来衡量的。复合危险因素评分（z 分数总和）中包含的危险因素包括收缩压、甘油三酯、高密度脂蛋白胆固醇、胰岛素抵抗和腰围。
肌肉健康与代谢风险聚集呈负相关，与心肺健康独立相关，并且在调整年龄、性别和青春期阶段后仍然如此（β=-0.112，P<0.001）。与肌肉健康独立相关，心肺健康与代谢风险聚集呈负相关（β=-0.337，P<0.001）。此外，与最健康的四分位数相比，在最不健康的四分位数中具有代谢风险聚集的可能性比为 7.2（95%置信区间（CI）=4.3-12.0）和 17.3（95% CI=9.2-32.7），分别为肌肉健康和心肺健康。
我们的结果表明，肌肉健康和心肺健康与青少年的代谢风险独立相关。
