Habitual physical activity and health-related quality of life in older adults: interactions between the amount and intensity of activity (the Nakanojo Study)
Habitual physical activity and health-related quality of life in older adults: interactions between the amount and intensity of activity (the Nakanojo Study)
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DOI：
10.1007/s11136-010-9588-6
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发表时间：
2010-04-01
影响因子：
3.5
通讯作者：
Shephard, Roy J.
中科院分区：
文献类型：
--
作者：
Aoyagi, Yukitoshi;Park, Hyuntae;Shephard, Roy J.
本研究探讨了老年人的健康相关生活质量（HRQOL）和习惯性体力活动的客观评估之间的关系，重点是活动量和活动强度之间的相互作用。计步器/加速度计连续1年每天24小时测量他们的步数和代谢当量（MET）的体力活动强度。采用SF-36量表对每个个体的最终HRQOL进行评估，结果显示，每日步数与强度> 3 MET的体力活动的每日持续时间密切相关（二次相关系数r（2）= 0.93，P < 0.05）。在控制了年龄、性别和每日步数后，SF-36总体评分和四个组成维度（身体功能、无疼痛、活力和心理健康）在强度> 3 MET的活动中花费> 25%的个体都显著较高。然而，参与活动> 3 METs与SF-36的其他组成部分（身体限制、一般健康、社会功能和情绪限制）无显著相关性。老年人中等强度体力活动与HRQOL之间的相关性值得通过前瞻性研究和/或随机对照试验进一步评估。
This study examined relationships between health-related quality of life (HRQOL) and objective assessments of habitual physical activity in older adults, focusing on interactions between the amount and intensity of activity.Subjects were healthy Japanese aged 65-85 years (74 men and 109 women). Pedometer/accelerometers measured their step counts and the intensity of physical activity in metabolic equivalents (METs) continuously 24 h per day for 1 year. Each individual's final HRQOL was assessed using the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) instrument.The daily step count and the daily duration of physical activity at an intensity > 3 METs were quite closely correlated (quadratic r (2) = 0.93, P < 0.05). After controlling for age, sex, and daily step count, the overall SF-36 score and four constituent dimensions (physical functioning, freedom from pain, vitality, and mental health) were all significantly higher in individuals spending > 25% of their total activity at an intensity > 3 METs. However, engagement in activity > 3 METs was not significantly associated with the remaining SF-36 components (physical limitations, general health, social functioning, and emotional limitations).Associations between moderate-intensity physical activity and HRQOL in older adults merit further evaluation by prospective studies and/or randomized controlled trials.