低強度跑步運動結合血流限制對肌肉組織氧飽和度與荷爾蒙的影響

Low-Intensity Running Exercise Combined With Blood Flow Restriction on Muscle Tissue Oxygen Saturation and Hormone Responses

陳昀宗(Yun-Tsung Chen) ； 徐孟達(Mong-Da Hsu) ； 謝耀毅(Yao-Yi Hsieh) ； 林正常(Jung-Charng Lin)

《運動生理暨體能學報》 31輯 (2020/12) Pp. 9-19

https://doi.org/10.6127/JEPF.202012_(31).0002

摘要

目的：探討低強度跑步運動結合血流限制對肌肉組織氧飽和度與荷爾蒙的影響。方法：20名男性耐力型運動員，依據最大攝氧量與訓練經驗配對分組到：（一）跑步運動（50%保留心跳率，3分鐘 × 5組，組間休息1分鐘）結合血流限制組（大腿加壓153.8 mmHg；running exercise combined with blood flow restriction, RE-BFR）、（二）跑步運動無血流限制組（running exercise, RE）。結果：RE-BFR組的運動中組織氧合指數（tissue oxygenation index, TOI）顯著低於RE組（79.3 vs. 93.4%, p ＜ .05），心跳率（160.8 vs. 141.5 bpm, p ＜ .05）與運動自覺量表值（15.8 vs.9.5, p ＜ .05）顯著高於RE組。RE-BFR組的運動後血乳酸（5.3 vs. 1.4 mmol/L, p ＜ .05）顯著高於RE組。此外，RE-BFR組的運動後15分鐘皮質醇濃度顯著高於RE組（p ＜ .05），但睪固酮濃度則無顯著差異。結論：低強度跑步運動結合血流限制，誘發耐力型運動員組織肌肉的低氧反應，促進人體代謝壓力增加，對隨後的同化性荷爾蒙無正面幫助。

關鍵字

血乳酸 ； 睪固酮 ； 皮質醇 ； 組織氧合指數

並列摘要

Purpose: This study investigated the effects of low-intensity running exercise combined with blood flow restriction (RE-BFR) on muscle tissue oxygen saturation and hormone responses in athletes. Methods: Twenty endurance-trained male athletes were pair-matched by maximal oxygen uptake (VO_2max) and training history, and randomly assigned to either: (1) running exercise (50% heart rate reserve [HRR], 3 min × 5 sets, 1 min rest interval) with BFR (occlusion pressure: 153.8 mmHg) group (RE-BFR), or (2) running exercise (50% HRR) only group (RE). Results: RE-BFR group elicited significantly greater decreases in tissue oxygenation index (TOI; 79.3 vs. 93.4%, p ＜ .05), and increases in heart rate (160.8 vs. 141.5 bpm, p ＜ .05) as well as received perception of exertion (RPE; 15.8 vs. 9.5, p ＜ .05) than RE group during exercise. RE-BFR elicited significant higher in blood lactate (5.3 vs. 1.4 mmol/L, p ＜ .05) than RE group after exercise. Moreover, RE-BFR elicited significant increases in cortisol concentration (p ＜ .05) at 15 min post-exercise, but not in testosterone concentration. Conclusion: Low-intensity running exercise combined with blood flow restriction results in increases in thigh muscle hypoxia and metabolic stress. However it did not present any beneficial effects on anabolic hormone response in endurance athletes.

並列關鍵字

blood lactate ； testosterone ； cortisol ； tissue oxygenation index

參考文獻

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