Bartolomei Sandro, Sadres Eliahu, Church David D, Arroyo Eliott, Gordon Joseph A, Varanoske Alyssa N, Wang Ran, Beyer Kyle S, Oliveira Leonardo P, Stout Jeffrey R, Hoffman Jay R
Sport and Exercise Science, University of Central Florida, Orlando, FL, 32766, USA.
The Nat Holman School for Coaches and Instructors, Wingate Institute for Physical Education and Sport, Netanya, Israel.
Eur J Appl Physiol. 2017 Jul;117(7):1287-1298. doi: 10.1007/s00421-017-3598-9. Epub 2017 Apr 26.
The purpose of this study was to compare the physiological responses of a high-volume (HV; 8 sets of 10 repetitions) versus high-intensity (HI; 8 sets of 3 repetitions) exercise protocol in resistance-trained men.
Twelve men (24.5 ± 4.2 years; 82.3 ± 8.4 kg; 175.2 ± 5.5 cm) with 6.3 ± 3.4 years of resistance training experience performed each protocol in a counterbalanced, randomized order. Performance [counter movement jump peak power (CMJP), isokinetic (ISOK) and isometric leg extension (MVIC), isometric mid-thigh pull (IMTP), and isometric squat (ISQ)] and muscle morphological [cross-sectional area (CSA) of vastus lateralis] assessments were performed at baseline (BL), 30-min (P-30 min), 24-h (P-24 h), 48-h (P-48 h), and 72-h (P-72 h) post-exercise for each testing session. In addition, endocrine (testosterone and cortisol), inflammatory [interleukin-6 (IL-6) and C-reactive protein (CRP)], and markers of muscle damage [creatine kinase (CK), lactate dehydrogenase (LDH), and myoglobin (Mb)] were assessed at the same time points.
Significantly greater reductions in CMJP (p < 0.001), and peak torque during both ISOK (p = 0.003) and MVIC (p = 0.008) at P-30 min were detected in HV compared to HI protocol. MVIC was still impaired at P-72 h following the HV protocol, while no differences were noted following HI. Markers of muscle damage (LDH, CK, and Mb) were significantly elevated following both HV and HI (p < 0.05), while cortisol and IL-6 concentrations were significantly elevated at P-30 min following HV only (p < 0.001 and p < 0.05, respectively).
Results indicate that high-volume resistance exercise results in greater performance deficits, and a greater extent of muscle damage, than a bout of high-intensity resistance exercise.
本研究旨在比较大运动量（HV；8组，每组10次重复）与高强度（HI；8组，每组3次重复）运动方案对进行抗阻训练男性的生理反应。
12名男性（年龄24.5±4.2岁；体重82.3±8.4千克；身高175.2±5.5厘米），有6.3±3.4年抗阻训练经验，以平衡、随机的顺序进行每种运动方案。在每次测试的基线（BL）、运动后30分钟（P-30分钟）、24小时（P-24小时）、48小时（P-48小时）和72小时（P-72小时）进行运动能力测试[反向纵跳峰值功率（CMJP）、等速（ISOK）和等长伸膝（MVIC）、等长大腿中拉（IMTP）和等长深蹲（ISQ）]以及肌肉形态学评估[股外侧肌横截面积（CSA）]。此外，在相同时间点评估内分泌指标（睾酮和皮质醇）、炎症指标[白细胞介素-6（IL-6）和C反应蛋白（CRP）]以及肌肉损伤标志物[肌酸激酶（CK）、乳酸脱氢酶（LDH）和肌红蛋白（Mb）]。
与HI方案相比，在HV方案中，P-30分钟时CMJP的降低幅度显著更大（p<0.001），ISOK（p=0.003）和MVIC（p=0.008）过程中的峰值扭矩也显著更大。在HV方案后P-72小时MVIC仍受损，而HI方案后未观察到差异。HV和HI方案后肌肉损伤标志物（LDH、CK和Mb）均显著升高（p<0.05），而仅在HV方案后P-30分钟时皮质醇和IL-6浓度显著升高（分别为p<0.001和p<0.05）。
结果表明，与高强度抗阻运动相比，大运动量抗阻运动导致更大的运动能力缺陷和更大程度的肌肉损伤。
