School of Sports, Rehabilitation and Exercise Science, University of Essex, Colchester, United Kingdom.
J Strength Cond Res. 2020 Aug;34(8):2267-2275. doi: 10.1519/JSC.0000000000002738.
Chaikhot, D, Reed, K, Petroongrad, W, Athanasiou, F, van Kooten, D, and Hettinga, FJ. Effects of an upper-body training program involving resistance exercise and high-intensity arm cranking on peak handcycling performance and wheelchair propulsion efficiency in able-bodied men. J Strength Cond Res 34(8): 2267-2275, 2020-The aim of this study was to determine the training effects of an upper-body training program involving resistance exercise and high-intensity arm cranking on peak handcycling performance, propulsion efficiency, and biomechanical characteristics of wheelchair propulsion in able-bodied men. The training group (n = 10) received a 4-week upper-body resistance training (RT), 70% of 1 repetition maximum, 3 sets of 10 repetitions, 8 exercise stations, 2 times per week, combined with high-intensity interval training (HIIT) 2 times per week. High-intensity interval training consisted of arm-crank exercise, 7 intervals of 2 minutes at 80-90% of peak heart rate (HRpeak) with 2-minute active rest at 50-60% of HRpeak. The control group (n = 10) received no training. Both groups performed a preincremental and postincremental handcycling test until volitional exhaustion to evaluate fitness and a 4-minute submaximal wheelchair propulsion test at comfortable speed (CS), 125 and 145% of CS, to evaluate gross mechanical efficiency (GE), fraction of effective force (FEF), percentage of peak oxygen consumption (% V[Combining Dot Above]O2peak), and propulsion characteristics. Repeated-measures analysis of variance was performed (p < 0.05). Training resulted in a 28.2 ± 16.5% increase in peak power output, 13.3 ± 7.5% increase in V[Combining Dot Above]O2peak, 5.6 ± 0.9% increase in HRpeak, and 3.8 ± 1.5% decrease in HRrest. No training effects on FEF, GE, % V[Combining Dot Above]O2peak, and push characteristics were identified. In conclusion, the combined RT and arm-cranking HIIT improved fitness. However, it seems that this training did not result in improvements in propulsion efficiency and push characteristics. Additional wheelchair skill training may be needed to fully benefit from this advantage in daily life propulsion.
查伊霍特、里德、彼得罗格拉德、阿塔纳西乌、范科滕和赫廷加。一项包含阻力训练和高强度手臂划动的上身训练计划对上半身健全男性的峰值手摇车性能和轮椅推进效率的影响。J 力量与调理研究 34（8）：2267-2275，2020-本研究的目的是确定一项包含阻力训练（RT）和高强度手臂划动的上身训练计划对上半身健全男性的峰值手摇车性能、推进效率和轮椅推进的生物力学特征的训练效果。训练组（n = 10）接受了为期 4 周的上身阻力训练（RT），强度为 1 次最大重复的 70%，3 组 10 次重复，8 个运动站，每周 2 次，每周 2 次进行高强度间歇训练（HIIT）。高强度间歇训练包括手臂划动，80-90%峰值心率（HRpeak）的 7 个 2 分钟间隔，50-60%HRpeak 的 2 分钟主动休息。对照组（n = 10）未接受训练。两组均进行递增和递增后的手摇车测试，直至自愿衰竭，以评估体能，并在舒适速度（CS）、125%和 145%CS 下进行 4 分钟次最大轮椅推进测试，以评估总机械效率（GE）、有效力分数（FEF）、峰值摄氧量百分比（%V[Combining Dot Above]O2peak）和推进特征。进行重复测量方差分析（p < 0.05）。训练导致峰值功率输出增加 28.2 ± 16.5%，V[Combining Dot Above]O2peak 增加 13.3 ± 7.5%，HRpeak 增加 5.6 ± 0.9%，HRrest 减少 3.8 ± 1.5%。FEF、GE、%V[Combining Dot Above]O2peak 和推特性均未显示出训练效果。总之，联合 RT 和手臂划动的 HIIT 提高了体能。然而，似乎这种训练并没有导致推进效率和推特性的提高。可能需要额外的轮椅技能训练才能在日常生活中充分利用这一优势。
