School of Psychology and Exercise Science, Murdoch University, Perth, Western Australia, Australia.
New South Wales Institute of Sport, Sydney Olympic Park, Sydney, New South Wales, Australia.
J Strength Cond Res. 2018 Aug;32(8):2174-2182. doi: 10.1519/JSC.0000000000002304.
Scott, BR, Slattery, KM, Sculley, DV, and Dascombe, BJ. Hypoxia during resistance exercise does not affect physical performance, perceptual responses, or neuromuscular recovery. J Strength Cond Res 32(8): 2174-2182, 2018-This study aimed to determine whether performing resistance exercise in hypoxia affects markers of physical performance, perceptual responses, and neuromuscular function. Fourteen male subjects (age: 24.6 ± 2.7 years; height: 179.7 ± 5.9 cm; body mass: 84.6 ± 11.6 kg) with >2 years resistance training experience performed moderate-load resistance exercise in 2 conditions: normoxia (FIO2 = 0.21) and hypoxia (FIO2 = 0.16). Resistance exercise comprised 3 sets of 10 repetitions of back squats and deadlifts at 60% of 1 repetition maximum (1RM), with 60 seconds inter-set rest. Physical performance was assessed by quantifying velocity and power variables during all repetitions. Perceptual ratings of perceived exertion, physical fatigue, muscle soreness, and overall well-being were obtained during and after exercise. Neuromuscular performance was assessed by vertical jump and isometric mid-thigh pull (IMTP) tasks for up to 48 hours after exercise. Although physical performance declined across sets, there were no differences between conditions. Similarly, perceived exertion and fatigue scores were not different between conditions. Muscle soreness increased from baseline at 24 and 48 hours after exercise in both conditions (p ≤ 0.001). Jump height and IMTP peak force were decreased from baseline immediately after exercise (p ≤ 0.026), but returned to preexercise values after 24 hours. These findings suggest that hypoxic resistance exercise does not affect exercise performance or perceived exercise intensity. In addition, neuromuscular recovery and perceptual markers of training stress were not affected by hypoxia, suggesting that hypoxic resistance training may not add substantially to the training dose experienced.
斯科特，BR，斯莱特里，KM，斯库利，DV，和达斯科姆，BJ。抗阻运动时缺氧不会影响身体表现、知觉反应或神经肌肉恢复。J 力量与体能研究 32（8）：2174-2182，2018-本研究旨在确定在缺氧环境下进行抗阻运动是否会影响身体表现、知觉反应和神经肌肉功能的标志物。14 名男性受试者（年龄：24.6±2.7 岁；身高：179.7±5.9cm；体重：84.6±11.6kg）具有 2 年以上的抗阻训练经验，在 2 种条件下进行中等负荷抗阻运动：常氧（FIO2=0.21）和缺氧（FIO2=0.16）。抗阻运动包括 3 组 10 次重复的深蹲和硬拉，负荷为 1 次最大重复次数（1RM）的 60%，每组之间休息 60 秒。通过量化所有重复次数的速度和功率变量来评估身体表现。在运动中和运动后获得了知觉评估的用力感、身体疲劳、肌肉酸痛和整体舒适度。在运动后 48 小时内，通过垂直跳跃和等长大腿中部拉力（IMTP）任务评估神经肌肉性能。尽管身体表现随着组数的增加而下降，但在两种情况下没有差异。同样，在两种情况下，用力感和疲劳评分没有差异。肌肉酸痛在运动后 24 和 48 小时从基线增加（p≤0.001）。跳跃高度和 IMTP 峰值力在运动后立即从基线下降（p≤0.026），但在 24 小时后恢复到运动前的值。这些发现表明，缺氧抗阻运动不会影响运动表现或知觉运动强度。此外，神经肌肉恢复和训练应激的知觉标志物不受缺氧影响，这表明缺氧抗阻训练可能不会显著增加所经历的训练剂量。
