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台北馬拉松遇寒流!國健署示警「4保護重點」補水有技巧

ETtoday
2024/12/15 | 2分鐘閱讀

記者趙于婷/台北報導

近日低溫來襲,增加心血管疾病風險!國健署指出,今日恰巧是2024台北馬拉松,氣溫驟降和濕冷天氣的交替可能導致血壓升高,從而增加心血管疾病及中風的風險,尤其是三高族群(高血壓、高血糖、高血脂)、心血管疾病患者或長者,更應提高警覺;建議清晨運動的民眾遵守「保暖、熱身、補水、運動時間調整」4大原則。

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國健署署長吳昭軍指出,從寒冷戶外進入室內後,應讓身體逐步回暖,再洗熱水澡,避免溫差過大引發血管擴張,特別是對於血管彈性差或心血管疾病患者;洗完澡後,也要注意保暖,避免立刻進入較低溫環境,降低心血管疾病的風險。

由於冬季是大型運動活動的旺季,針對冬季參加如馬拉松或在清晨運動的民眾,吳昭軍提醒,清晨運動不宜太早出門,並遵守以下「保暖、熱身、補水、運動時間調整」4大原則,以降低心血管疾病風險。

1.保暖:衣物分層穿著,隨著運動過程中體溫上升,可適時脫去一層衣物,避免流汗以致體溫驟降,運動後立刻擦乾汗水,穿上保暖外套,以防著涼感冒。

2.熱身:運動前充分暖身(如關節旋轉運動、慢跑等動態暖身)可增加肌肉溫度、促進血液流動,讓肌肉與關節的活動度與延展性提升,預防運動傷害,冬季建議暖身時間比夏季的5~10分鐘更久,約15~20分鐘。

3.補水:儘管是寒冷天氣,身體仍會流失水分,身體水分不足,可能導致血液過於黏稠,流動性不佳,造成風險,運動時要適時補充溫熱開水,分多次、慢慢喝,以避免胃脹等不適情形。另戶外活動中,建議每15分鐘飲用200~300毫升溫水;若活動超過1小時且有明顯的喘與流汗,則需補充碳水化合物及電解質,避免飲用含高糖分、咖啡因或酒精成分飲料。

4.運動時間調整:清晨和傍晚是溫度最低的時段,出入室內外也容易因低溫會造成血管收縮,使血壓上升,進而增加心臟病和中風急性發作的機會,建議避開低溫和溫差較大的時段出門運動,並建議結伴而行相互關照。

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