Effect of physical activity on QOL improvement in consideration of differences of physical activity program types

本研究的目的是探讨体育活动项目与健康相关生活质量改善的关系。54名中老年人参加了这项研究。在11周的体育活动计划前后，测量了参与者的健康相关生活质量和身体素质。通过比较体育活动直接改善健康相关生活质量的模型（模型1）和体育活动通过改善体质改善健康相关生活质量的模型，研究体育活动与健康相关生活质量改善的关系。分析结果表明，模型1比模型2显示出更好的连续模型的拟合。此外，在模型2中，身体素质的改善对健康相关生活质量的改善没有显著影响。因此，这些结果表明，参与体育活动计划直接改善健康相关的生活质量。

The purpose of this study was to examine association of physical activity programs to improvement of health related QOL. Fifty-four middle-aged and elderly people participated in the study. Before and after 11-week physical activity programs, health related QOL and physical fitness of the participants were measured. Association of physical activity programs to improvement of health related QOL were examined by comparing a model that physical activity programs improve health related QOL directly (model 1) with other model that the programs improve health related QOL through physical fitness improvement. A result of analyses revealed that the model 1 showed better the fit of successive models than the model 2. In addition, there was no significant effect of physical fitness improvement on improvement of health related QOL in the model 2. Therefore, these results show that participation to the physical activity program directly improves health related QOL.