Shibata Ai, Oka Koichiro, Nakamura Yoshio, Muraoka Isao
Research Institute for Elderly Health, Comprehensive Research Organization, Waseda University, Tokyo, Japan.
Health Qual Life Outcomes. 2007 Nov 28;5:64. doi: 10.1186/1477-7525-5-64.
The benefits of a recommended level of physical activity on physiological health indicators such as morbidity and mortality are well-accepted, but less research has addressed whether or not the association between the recommended level of physical activity and a health-related quality of life (HRQOL) exists in the Japanese population. Thus, the present study examined whether the recommended physical activity would be associated with HRQOL in the general Japanese middle-aged population.
Data were obtained from 1211 male and female respondents (39.4 +/- 10.9 year, mean +/- SD) from an Internet-based survey of registrants of an Internet research service. Physical activity level was estimated from the short form of the International Physical Activity Questionnaire. HRQOL was assessed with the Medical Outcomes Survey Short Form-8 questionnaire (SF-8). Based on the current national guidelines for exercise in Japan, respondents were divided into a recommended group, an insufficient group, and an inactive group according to their estimated weekly physical activity level. Multivariate analyses of covariance were utilized.
Across both genders, the recommended group had significantly higher physical functioning (PF) scores than the inactive group (p < .05). Additionally, across both genders, the recommended group had significantly higher general health perception scores than the insufficient and inactive groups (p < .05). The recommended group had significantly higher vitality scores than the insufficient and inactive groups in males, and higher than only the inactive group in females (p < .05). The insufficient group had significantly higher PF scores than the inactive group across both genders (p < .05). The recommended group had significantly higher physical component scores than the inactive group (p = .001).
Individuals who attained the recommended level of physical activity had better scores on some dimensions of HRQOL than those who did not, suggesting that the recommended level of physical activity may be applicable not only to the physiological objective outcomes but also to some dimensions in both the physical and mental aspects of HRQOL.
推荐水平的体育活动对发病率和死亡率等生理健康指标的益处已得到广泛认可，但关于日本人群中推荐水平的体育活动与健康相关生活质量（HRQOL）之间是否存在关联的研究较少。因此，本研究调查了在日本普通中年人群中，推荐的体育活动是否与HRQOL相关。
数据来自对一家互联网研究服务注册用户进行的基于网络的调查中的1211名男性和女性受访者（年龄39.4±10.9岁，均值±标准差）。体育活动水平通过国际体育活动问卷简表进行估算。HRQOL使用医学结果调查简表8问卷（SF-8）进行评估。根据日本当前的国家运动指南，受访者根据其估算的每周体育活动水平被分为推荐组、不足组和不活动组。采用多变量协方差分析。
在两性中，推荐组的身体功能（PF）得分显著高于不活动组（p < 0.05）。此外，在两性中，推荐组的总体健康感知得分显著高于不足组和不活动组（p < 0.05）。推荐组男性的活力得分显著高于不足组和不活动组，女性则仅高于不活动组（p < 0.05）。在两性中，不足组的PF得分显著高于不活动组（p < 0.05）。推荐组的身体成分得分显著高于不活动组（p = 0.001）。
达到推荐体育活动水平的个体在HRQOL的某些维度上得分高于未达到该水平的个体，这表明推荐水平的体育活动不仅可能适用于生理客观结果，还可能适用于HRQOL身心方面的某些维度。
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