今天推薦的這篇文章2015年發表在Health Psychology Review，使用元元分析這種方法探討體育活動是否能改善非臨床人群的焦慮和抑鬱。我們知道元分析是對原始研究進行的元分析，元元分析顧名思義就是對元分析進行的元分析。如果你研究的領域元分析已經比較多了，你可以進行元元分析。元元分析除了在提取效應量的標準差方面和元分析有所差異之外，其他和元分析原理基本相同。請關注微信公眾「元分析」獲取更多精彩內容。
英文題目和摘要
A meta-meta-analysis of the effect of physical activity on depression and anxiety in non-clinical adult populations
Amidst strong efforts to promote the therapeutic benefits of physical activity for reducing depression and anxiety in clinical populations, little focus has been directed towards the mental health benefits of activity for non-clinical populations. The objective of this meta-meta-analysis was to systematically aggregate and quantify high-quality meta-analytic findings of the effects of physical activity on depression and anxiety for non-clinical populations. A systematic search identified eight meta-analytic outcomes of randomised trials that investigated the effects of physical activity on depression or anxiety. The subsequent meta-meta-analyses were based on a total of 92 studies with 4310 participants for the effect of physical activity on depression and 306 study effects with 10,755 participants for the effect of physical activity on anxiety. Physical activity reduced depression by a medium effect [standardised mean difference (SMD) = 0.50; 95% CI: 0.93 to 0.06] and anxiety by a small effect (SMD = 0.38; 95% CI: 0.66 to 0.11). Neither effect showed significant heterogeneity across meta-analyses. These findings represent a comprehensive body of high-quality evidence that physical activity reduces depression and anxiety in non-clinical populations.
中文摘要
在努力促進體育鍛鍊對減少臨床人群的抑鬱和焦慮的治療益處的努力時，很少有人關注針非臨床人群的體育鍛鍊對精神健康的益處。這項元元分析的目的是系統地匯總和量化體育活動對非臨床人群抑鬱和焦慮影響的高質量元分析結果。系統檢索確定了八項對隨機試驗結果進行的元分析，這些元分析調查了體育鍛鍊對抑鬱或焦慮的影響。隨後的元元分析基於總共92個體育活動對抑鬱影響的研究（4310名參與者），以及306個體育活動對焦慮影響的研究（10755名參與者）。體育活動降低抑鬱為中等效應[標準化均值差（SMD）= -0.50；95％CI：-0.93至-0.06]，降低焦慮為小效應（SMD = -0.38；95％CI：-0.66至-0.11）。元分析均未顯示明顯的異質性。這些結果代表了全面的高質量證據，表明體育鍛鍊可減少非臨床人群的抑鬱和焦慮。