攝取辣椒素對半蹲舉運動表現之急性影響
No Thumbnail Available
Date
2025
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
目的：探討攝取辣椒素對半蹲舉運動表現、肌肉氧合指標與心率變異性之影響。方法： 招募12名擁有阻力訓練經驗之男性為參與者。參與者需完成一次控制處理 (CON)，然後以隨機交叉方式，進行2種實驗處理，包括在半蹲舉運動前45分鐘，服用含12毫克辣椒素的辣椒萃取物膠囊 (CAP) 或纖維素膠囊 (PLA)。參與者在實驗處理後，將進行4組70%1RM之半蹲舉，每組需執行至衰竭。在蹲舉運動期間，將蒐集訓練量與自覺運動強度 (rate of perceived exertion, RPE)，以及使用測力板與位移計蒐集相關動力學指標，並以近紅外線光譜儀檢測肌肉氧飽和度。另外，在增補後休息期間，使用心率帶檢測心率變異性。結果：三種處理的半蹲舉訓練量並無顯著差異 (p> .05)，但CAP似乎能夠維持第三組與第四組的訓練量 (第三組 vs. 第四組, 1596.3 ± 541.2 kg vs. 1460.0 ± 419.9 kg, p > .05)，而CON (第三組vs. 第四組, 1738.5 ± 474.6 kg vs. 1400.6 ± 434.1 kg, p < .05) 與PLA (第三組vs. 第四組, 1639.6 ± 464.6 kg vs. 1490.4 ± 449.1 kg, p < .05) 則有顯著下降的趨勢。本研究也發現，CAP能夠維持第一組與第二組期間的動力學相關指標 ，如力量、速度與功率 (p > .05)，而CON與PLA 則有顯著下降的趨勢 (p < .05)。RPE、血氧飽和度與運動前的心率變異性等指標，在各處理間則未達顯著差異 (p > .05)。結論：對於具有阻力訓練經驗者而言，CAP無法顯著提升半蹲舉運動的自覺感受、肌肉氧飽和度與訓練量，但似乎能夠延緩多組數衰竭性阻力運動的疲勞。
Purpose: To investigate the acute effects of capsaicin ingestion on half-squat performance, muscle oxygenation index, and heart rate variability. Methods: 12 resistance-trained men were recruited to complete a control trial (CON), and then required to perform 2 treatments in a randomized crossover design, including consuming capsicum extract capsules containing 12 mg of capsaicin (CAP) or dietary fiber capsules (PLA), 45 minutes before half-squat exercise. Participants performed 4 sets of half-squats with 70% of 1RM until concentric failure after each treatment. During the squats, training volume and the rate of perceived of exertion (RPE) were measured. Kinetic parameters were collected by force platform and linear displacement transducer. Changes in muscle oxygenation were monitored by near-infrared spectroscopy. Heart rate variability (HRV) during the rest after supplementation were monitored by heart rate sensor. Results: No significant differences were observed in training volume among the three treatments (p> .05). However, CAP tended to maintain the training volume between the third and fourth sets (1596.3 ± 541.2 kg vs. 1460.0 ± 419.9 kg, p > .05), but the significant decreases were found in CON (1738.5 ± 474.6 kg vs. 1400.6 ± 434.1 kg, p < .05) and PLA (1639.6 ± 464.6 kg vs. 1490.4 ± 449.1 kg, p < .05). In addition, no significant differences in kinetic parameters (force, velocity and power) between the first and second sets (p > .05) in CAP, while the significant decreases were found in CON andPLA (p < .05). However, no significant differences were observed in RPE, muscle oxygenation, or pre-exercise HRV among the treatments. Conclusion: In resistance-trained men, CAP supplementation did not significantly improve perceived exertion, muscle oxygenation, or training volume during half-squat exercise. However, CAP may attenuate fatigue during multi-set resistance training.
Purpose: To investigate the acute effects of capsaicin ingestion on half-squat performance, muscle oxygenation index, and heart rate variability. Methods: 12 resistance-trained men were recruited to complete a control trial (CON), and then required to perform 2 treatments in a randomized crossover design, including consuming capsicum extract capsules containing 12 mg of capsaicin (CAP) or dietary fiber capsules (PLA), 45 minutes before half-squat exercise. Participants performed 4 sets of half-squats with 70% of 1RM until concentric failure after each treatment. During the squats, training volume and the rate of perceived of exertion (RPE) were measured. Kinetic parameters were collected by force platform and linear displacement transducer. Changes in muscle oxygenation were monitored by near-infrared spectroscopy. Heart rate variability (HRV) during the rest after supplementation were monitored by heart rate sensor. Results: No significant differences were observed in training volume among the three treatments (p> .05). However, CAP tended to maintain the training volume between the third and fourth sets (1596.3 ± 541.2 kg vs. 1460.0 ± 419.9 kg, p > .05), but the significant decreases were found in CON (1738.5 ± 474.6 kg vs. 1400.6 ± 434.1 kg, p < .05) and PLA (1639.6 ± 464.6 kg vs. 1490.4 ± 449.1 kg, p < .05). In addition, no significant differences in kinetic parameters (force, velocity and power) between the first and second sets (p > .05) in CAP, while the significant decreases were found in CON andPLA (p < .05). However, no significant differences were observed in RPE, muscle oxygenation, or pre-exercise HRV among the treatments. Conclusion: In resistance-trained men, CAP supplementation did not significantly improve perceived exertion, muscle oxygenation, or training volume during half-squat exercise. However, CAP may attenuate fatigue during multi-set resistance training.
Description
Keywords
重量訓練, 熱刺激, 運動增補劑, 交感神經, weight training, thermal stimulation, ergogenic supplements, sympathetic nerve