Gardner Andrew W, Montgomery Polly S
CMRI Metabolic Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK ; Department of Medicine, Division of Gerontology, University of Maryland, Baltimore, MD.
Clin Med Geriatr. 2008 May 8;2008(1):9-15.
(a) To compare exercise performance and leisue-time physical activity (LTPA) between older men and women, (b) to assess the relationship between exercise performance and LTPA, and (c) to determine whether group differences in exercise performance persist after controlling for LTPA.
A total of 105 women and 155 men who were 65 years of age and older participated in this study. Subjects were characterized on exercise performance by a 6-minute walk test, and by a short physical performance battery (SPPB) consisting of a repeated chair rise test, a standing balance test, and a 4-meter walk test. Additionally, LTPA was assessed using the Minnesota LTPA questionnaire.
Women had a 7% lower SPPB value ( < 0.001), a 12% shorter 6-minute walk distance ( < 0.001), and a 28% lower LTPA value ( < 0.011) than the older men. LTPA was significantly related ( < 0.01) to both SPPB and 6-minute walk distance in the older men and women. Group differences in SPPB and 6-minute walk distance between older men and women were no longer present ( > 0.05) after controlling for LTPA.
Older women have impaired exercise performance and lower LTPA compared to older men. Furthermore, sex differences in exercise performance no longer exist after controlling for LTPA.
(a) 比较老年男性和女性的运动表现及休闲时间身体活动（LTPA）；(b) 评估运动表现与LTPA之间的关系；(c) 确定在控制LTPA后，运动表现的组间差异是否仍然存在。
共有105名65岁及以上的女性和155名65岁及以上的男性参与了本研究。通过6分钟步行测试以及由重复起坐测试、站立平衡测试和4米步行测试组成的简短身体表现组合测试（SPPB）来表征受试者的运动表现。此外，使用明尼苏达LTPA问卷评估LTPA。
与老年男性相比，女性的SPPB值低7%（<0.001），6分钟步行距离短12%（<0.001），LTPA值低28%（<0.011）。在老年男性和女性中，LTPA与SPPB和6分钟步行距离均显著相关（<0.01）。在控制LTPA后，老年男性和女性之间在SPPB和6分钟步行距离上的组间差异不再存在（>0.05）。
与老年男性相比，老年女性的运动表现受损且LTPA较低。此外，在控制LTPA后，运动表现的性别差异不再存在。
