咖啡因攝取對阻力運動中肌肉疼痛指數與肌耐力之影響

The Effect of Caffeine on and Muscle Pain During and Endurance Performance Resistance Exercise

陳柏翰(Po-Han Chen)

指導教授 ： 劉于詮

共同指導教授 ： 吳柏翰

長榮大學/管理學院/運動休閒管理學系(所)/碩士(2013年)

https://doi.org/10.6833/CJCU.2013.00170

摘要

研究背景:肌肉疼痛普遍存在於中高強度之運動當中,本研究之 目的希望了解咖啡因攝取對於中高強度阻力運動 (resistance exercise, RE) 中肌耐力表現與肌疼痛指數之影響。方法:12 位受過規律阻力 訓練的大專運動選手 (age, 21±1.1yr; mass, 80.5±11.8kg) 為本研究之 受試者。所有受試者先進行最大肌力測驗 (one-repetition-maximum, 1RM),之後以對抗平衡次序 (counter-balanced order) 與雙盲 (double-blind) 實驗設計方式分為咖啡因組 (CAF, 6mg/kg) 與安慰劑 組 (PLA)。 受試者在阻力運動前 60 分鐘攝取咖啡因或安慰劑,隨後 進行阻力運動(坐姿伸腿運動、80%RM 至衰竭、3 組)。每組之總舉起 重量 (反覆次數×80%1RM)、肌肉疼痛指數、血乳酸、心跳率與收縮 血壓在每一組運動結束後立即被紀錄。每次實驗處理至少間隔 7 天。 本研究以重複量數 2 因子 (實驗處理×時間) 變異數分析 (ANOVA) 分析兩組間測驗變項之差異。結果:本研究發現阻力運動中 (S2 與 S3) 總舉起重量與血乳酸之數值在CAF顯著高於PLA (P< .05)。此外, CAF 在阻力運動中的肌肉疼痛指數顯著低於 PLA (S1、S2 與 S3)。然 而,CAF 與 PLA 之心跳率與收縮血壓皆無顯著差異 (P> .05)。結論: 本研究的結果指出在阻力運動前攝取咖啡因 (6mg/kg) 可以顯著改 善肌耐力表現並降低肌肉疼痛指數。

關鍵字

自覺量表 ； 腺嘌呤核苷 ； 肌肉疼痛

並列摘要

Background: Muscle pain commonly caused by moderate to high intensity exercise. The purpose of this study was to investigate the effects of caffeine ingestion on perception of leg muscle pain and muscular endurance performance during high-intensity resistance exercise (RE). Methods: Ten well-trained college rugby players (age, 21±1.1 yr; mass, 80.5±11.8 kg) who regularly perform RE participated in this study. All subjects perform one-repetition-maximum (1RM) test, followed by the administration of two treatments: caffeine (CAF, 6mg/kg) and placebo (PLA) in a counter-balanced and double-blind experimental design. All subjects ingested a treatment 60 min prior to RE, and then they performed RE (knee extension exercise, 3 set at 80 % of 1RM until failure). Perceptions of leg muscle pain, blood lactate, heart rate, systolic blood pressure and total weight lifted were recorded at the end of each set RE (S1, S2 and S3). Experimental trials were separated by 1 week. In this study, atwo -way analysis of variance (treatment by time) with repeated measures was applied. Results: Results showed that total weight lifted and blood lactate were higher in CAF versus PLA during RE (S2, S3) (P<0.05). Moreover, the leg muscle pain ratings of CAF were significantly lower than PLA during RE (S1, S2 and S3). However, no significant difference was found in heart rate and systolic blood pressure between CAF and PLA (P>0.05). Conclusions: The results of this studyndicated that caffeine ingestion (6mg/kg) prior to RE significantly reduces muscle pain and improves muscle endurance performance.

並列關鍵字

rate of perceived exertion ； adenosine ； knee extension

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