Xu F, Cohen S A, Lofgren I E, Greene G W, Delmonico M J, Greaney M L
Furong Xu, PhD, Department of Kinesiology, 25 West Independence Way, Suite P, The University of Rhode Island, Kingston, RI 02881, Email:
J Frailty Aging. 2019;8(1):27-32. doi: 10.14283/jfa.2018.34.
Physical activity reduces the likelihood of developing metabolic syndrome (MetS). However, the association between different physical activity levels and MetS remains unclear in older adults with obesity.
This cross-sectional study used four waves of data (2007-2008, 2009-2010, 2011-2012, 2013-2014) from two datasets: The National Health and Nutrition Examination Survey and United Sates Department of Agriculture's Food Patterns Equivalents Database. The sample included adults 60+ years of age (n= 613) with obesity who had physical activity and MetS data. Physical activity was assessed using the Global Physical Activity Questionnaire and categorized into three physical activity levels (low, medium, and high); and medium or high physical activity levels are aligned with or exceed current physical activity recommendations. Participants were classified as having MetS using a commonly agreed upon definition. Multiple logistic regression models examined the association between the three physical activity levels and MetS risk factors and MetS. All analyses adjusted for potential confounding variables and accounted for complex sampling.
Of 613 respondents, 72.1% (n=431) were classified as having MetS, and 44.3% (n = 263) had not met physical activity recommendations. Participants with high levels of physical activity had a lower risk of MetS (OR = 0.31, 95%CI: 0.13, 0.72) and more healthful levels of high-density lipoprotein cholesterol (OR = 0.39, 95%CI: 0.18, 0.84), blood pressure (OR = 0.39, 95%CI: 0.20, 0.77), fasting glucose (OR = 0.34, 95%CI: 0.15, 0.78) than participants categorized as having low physical activity.
Physical activity is associated with lower risk of MetS only for participants with the highest level of physical activity, which suggests that physical activity dosage is important to reduce MetS risk in older adults with obesity.
体育活动可降低患代谢综合征（MetS）的可能性。然而，在肥胖的老年人中，不同体育活动水平与MetS之间的关联仍不明确。
这项横断面研究使用了来自两个数据集的四轮数据（2007 - 2008年、2009 - 2010年、2011 - 2012年、2013 - 2014年）：美国国家健康和营养检查调查以及美国农业部的食物模式等量数据库。样本包括60岁及以上（n = 613）患有肥胖症且有体育活动和MetS数据的成年人。使用全球体育活动问卷评估体育活动，并将其分为三个体育活动水平（低、中、高）；中等或高体育活动水平符合或超过当前的体育活动建议。使用普遍认可的定义将参与者分类为患有MetS。多个逻辑回归模型研究了三个体育活动水平与MetS风险因素和MetS之间的关联。所有分析都对潜在的混杂变量进行了调整，并考虑了复杂抽样。
在613名受访者中，72.1%（n = 431）被分类为患有MetS，44.3%（n = 263）未达到体育活动建议。体育活动水平高的参与者患MetS的风险较低（OR = 0.31，95%CI：0.13，0.72），高密度脂蛋白胆固醇水平更健康（OR = 0.39，95%CI：0.18，0.84），血压（OR = 0.39，95%CI：0.20，0.77），空腹血糖（OR = 0.34，95%CI：0.15，0.78），比被分类为体育活动水平低的参与者。
体育活动仅与体育活动水平最高的参与者患MetS的风险较低有关，这表明体育活动剂量对于降低肥胖老年人患MetS的风险很重要。
