Karanasios Eleftherios, Hannah Scott, Ryan-Stewart Helen, Faulkner James
School of Sport, Health and Community, Faculty of Health & Wellbeing, University of Winchester, Winchester, UK.
School of Health and Sport Science, Faculty of Education, Humanities and Health Science, Eastern Institute of Technology, Taradale, New Zealand.
J Clin Hypertens (Greenwich). 2025 Apr;27(4):e70020. doi: 10.1111/jch.70020.
This study compared the acute effects of resistance training (RT) between a moderate (ML) and a high loading (HL) intensity (12RM vs. 4RM, respectively), with the same intensity of effort on arterial stiffness and wave reflection in young healthy adults. Eleven healthy adults (age 36.4 ± 6.8 years) performed two RT protocols, ML and HL, in a randomized order. Both RT sessions consisted of three sets of deadlifts and three sets of bench presses, with 2 min rest between sets and exercises. Loading intensity was 12RM and 4RM for the ML and HL conditions, respectively. Measurements of pulse wave velocity (PWV) and pulse wave analysis (PWA; e.g., augmentation index) were collected at baseline, immediately post, and 15 min post-training. ML elicited significantly greater increases in carotid-femoral PWV (from 6.4 ± 0.3 to 7.3 ± 0.5), and augmentation index normalized to 75 bpm (from -5.1 ± 1.1) than HL (all p < 0.05). These findings demonstrate that an acute bout of RT performed to volitional failure using lower loads and higher repetitions impose a greater workload on the arterial and cardiovascular system in comparison to a RT scheme with heavier loads and lower repetitions.
本研究比较了中等强度（ML）和高强度（HL）抗阻训练（RT）（分别为12次重复最大负荷量与4次重复最大负荷量）对年轻健康成年人动脉僵硬度和波反射的急性影响，两种强度训练的主观用力程度相同。11名健康成年人（年龄36.4±6.8岁）以随机顺序进行了两组抗阻训练，即ML组和HL组。两组抗阻训练均包括三组硬拉和三组卧推，组间及练习间休息2分钟。ML组和HL组的负荷强度分别为12次重复最大负荷量和4次重复最大负荷量。在基线、训练后即刻和训练后15分钟收集脉搏波速度（PWV）和脉搏波分析（PWA，如增强指数）的测量数据。与HL组相比，ML组的颈股动脉PWV显著增加更多（从6.4±0.3增加到7.3±0.5），且标准化到75次/分钟的增强指数增加更多（从-5.1±1.1增加）（所有p<0.05）。这些结果表明，与负荷较重、重复次数较少的抗阻训练方案相比，使用较低负荷和较高重复次数进行至力竭的单次急性抗阻训练会给动脉和心血管系统带来更大的负荷。
