Swartz Ann M, Strath Scott J, Parker Sarah J, Miller Nora E
Dept of Human Movement Sciences, University of Wisconsin-Milwaukee, WI 53201-0413, USA.
J Aging Phys Act. 2008 Apr;16(2):188-200. doi: 10.1123/japa.16.2.188.
The purpose of this study was to investigate the combined impact of obesity and physical activity (PA) on the health of older adults. Pedometer-determined steps/d, body-mass index (BMI), resting blood pressure, and fasting glucose (FG) were assessed in 137 older adults (69.0 +/- 8.9 yr). The active group (>4,227 steps/d) had lower systolic blood pressure (SBP; p = .001), diastolic blood pressure (DBP; p = .028), and FG (p < .001) than the inactive group (< or = 4,227 steps/d). The normal-BMI group (18.5-24.9 kg/m2) had lower SBP (p < .001) and DBP (p = .01) than the obese group (> or =30 kg/m2). There were no differences in SBP (p = .963) or DBP (p = 1.0) between active obese and inactive normal-BMI groups. The active obese group, however, had a more favorable FG than the inactive normal-BMI group (chi 2 = 18.9, df = 3, p = .001). Efforts to increase PA of older adults should receive the same priority as reducing obesity to improve BP and FG levels.
本研究的目的是调查肥胖与身体活动（PA）对老年人健康的综合影响。对137名老年人（69.0±8.9岁）评估了通过计步器测定的每日步数、体重指数（BMI）、静息血压和空腹血糖（FG）。活跃组（每日步数>4227步）的收缩压（SBP；p = .001）、舒张压（DBP；p = .028）和FG（p < .001）均低于不活跃组（每日步数≤4227步）。正常BMI组（18.5 - 24.9 kg/m²）的SBP（p < .001）和DBP（p = .01）低于肥胖组（≥30 kg/m²）。活跃肥胖组与不活跃正常BMI组之间的SBP（p = .963）或DBP（p = 1.0）无差异。然而，活跃肥胖组的FG比不活跃正常BMI组更有利（χ² = 18.9，自由度 = 3，p = .001）。为改善血压和FG水平，增加老年人PA的努力应与减少肥胖得到同等重视。
