School of Health Sciences, Federation University, Ballarat, Victoria, Australia.
J Phys Act Health. 2014 Feb;11(2):330-8. doi: 10.1123/jpah.2012-0073. Epub 2013 Jan 30.
To examine the dose-response relationship between health related quality of life (HRQoL) and life satisfaction (outcomes) and duration of recreational physical activity (exposure). Further, to explore whether these relationships depend on type of physical activity (PA).
793 Australian rural-living women self-reported on duration of recreational PA; HRQoL via SF-36 Mental Component Summary (MCS) and Physical Component Summary (PCS); and a life satisfaction scale. ANOVAs and ANCOVAs investigated differences in outcomes (MCS, PCS, and life satisfaction) between tertiles of exposure to recreational PA, and types of PA (club sport, gymnasium, walking), with adjustment for potential confounders.
A significant positive dose-response relationship was found between PCS and level of PA. Furthermore, this relationship depended on type of PA, with club-sport participants recording higher PCS than non-club-sport participants in all but the highest tertile of exposure. Life satisfaction and MCS were not significantly related to level of PA.
Physical health was positively associated with level of recreational PA, with club sport participation contributing greater benefits at low to moderate exposures than participation in gymnasium or walking activities.
研究健康相关生活质量（HRQoL）和生活满意度（结局）与休闲体力活动（暴露）持续时间之间的剂量-反应关系。此外，还探讨了这些关系是否取决于体力活动（PA）的类型。
793 名澳大利亚农村居住的女性自我报告了休闲体力活动的持续时间；通过 SF-36 心理成分综合评分（MCS）和身体成分综合评分（PCS）评估 HRQoL；并使用生活满意度量表进行评估。采用方差分析和协方差分析，在休闲体力活动暴露的三分位组和体力活动类型（俱乐部运动、健身房、散步）之间，调整潜在混杂因素后，调查结局（MCS、PCS 和生活满意度）的差异。
发现 PCS 与 PA 水平之间存在显著的正剂量-反应关系。此外，这种关系取决于 PA 的类型，俱乐部运动参与者在除最高暴露三分位组之外的所有组中，PCS 评分均高于非俱乐部运动参与者。生活满意度和 MCS 与 PA 水平无显著相关性。
身体健康与休闲体力活动水平呈正相关，俱乐部运动参与在低至中度暴露时比参加健身房或散步活动带来更大的益处。
