
初日診所醫師李思賢指出,握力雖是觀察老化與健康的重要指標,但目前無研究證實單獨練握力能降低死亡風險,真正有實證支援的是規律全身阻力訓練。
初日診所醫師李思賢指出,握力雖與死亡風險相關,但無研究證實單獨練握力可降低死亡風險。真正有實證支援的是規律全身阻力訓練,而握力提升只是順便發生的結果。
AI-generated summary
握力常被視為觀察老化與健康狀況的重要指標,醫界對於握力與死亡風險的因果關係持續進行研究。
初日診所醫師李思賢指出,雖有研究發現握力與死亡風險存在關聯,但目前沒有研究證實單獨練握力能降低死亡風險,提醒運動練對才是關鍵;情境照。(圖取自freepik)
〔健康頻道/綜合報導〕握力常被視為觀察老化與健康狀況的重要指標,但握力越強,真能越長壽嗎?初日診所醫師李思賢指出,雖有研究發現握力與死亡風險存在關聯,但目前沒有研究證實單獨練握力能降低死亡風險,真正有實證支持的是規律的全身阻力訓練,而握力提升只是順便發生的結果。
李思賢於臉書粉專「思思醫師,陪你健康的好朋友」發文表示,握力每減少5公斤,死亡風險就往上攀升,幾乎已是老化指標界的共識。但「握力越強活越久」,其實有個因果陷阱:究竟是握力強保護了身體,以致比較長壽,還是身體好的人握力本來就比較強?
研究:握力弱死亡風險升
李思賢表示,1篇涵蓋28個國家的世代研究發現,握力排在後三分之一的老年人,男性死亡風險是前段的2.4倍、女性為2.6倍。調整各種變項後,關聯依然存在。但關聯穩不代表因果穩,例如:巴金森氏症、失智症患者確診前好幾年,握力就已經下降,握力很可能只是疾病的前兆而非原因。
握力與骨折風險具因果關係
此外,他指出,2017年發表於《Nature Communications》的孟德爾隨機化研究,用基因當工具,排除反向因果後發現,基因預測的握力和全死因死亡率、冠心病、心肌梗塞之間,均看不出因果關係,唯一有因果關係的是骨折風險。
整體骨骼肌量恐是長壽關鍵
李思賢進一步提及,2025年《International Journal of Obesity》的孟德爾隨機化研究換了角度,將四肢骨骼肌量和握力一起放進模型,發現在男性身上兩者都和壽命有正向因果關係,女性則無,顯示握力背後代表的「整體骨骼肌量」可能才是關鍵,而且有性別差異。
李思賢強調,握力反映的不只是肌肉量,還有神經肌肉協調效率和發炎狀態,這稱為肌少力症(Dynapenia)。目前沒有研究證實,單獨練握力可降低死亡風險,真正有實證支持的是規律的全身阻力訓練,而握力提升只是順便發生的結果。因此,當握力測量到偏低時,真正該問的是:「全身肌肉夠不夠、夠不夠常在動」。

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