Department of Physiotherapy and Rehabilitation Sciences, University of Health and Allied Sciences, Volta Region, Ghana.
Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
J Sports Sci. 2021 Jul;39(13):1472-1480. doi: 10.1080/02640414.2021.1880171. Epub 2021 Feb 2.
This study evaluated the effect of a low-intensity norm duration synchronous handcycle wheelchair training in untrained able-bodied women. The training group (n = 9) received 7-weeks of low-intensity upper body training in an instrumented handcycle on a motor-driven treadmill (MDT), 3 × 30 min/week at 30% heart rate reserve. The control group (n = 10) received no training. Incremental handcycle tests on the MDT were used to determine peak values for oxygen uptake (VO), power output (PO), heart rate (HR), minute ventilation (V), and respiratory exchange ratio (RER), submaximal values for heart rate (HR), oxygen uptake (VO) and gross efficiency (GE) before and after training. Local perceived discomfort and rate of perceived exertion (RPE) were also assessed. Training significantly improved PO (+20%), HR (+3%), RER (+5%), submaximal GE (+21%), VO (-20%), V (-33%), HR (-12%) and RPE was low (7.1 ± 0.5) (p < 0.05). No effects were found in VO and V (p > 0.05). Though VO did not improve, low-intensity norm duration handcycling training improved handcycling PO, while RPE was low. Also, GE increased, suggesting a motor control improvement. Handcycle training seems to be an appropriate exercise mode to improve physical capacity, and prevent early fatigue and overuse in untrained individuals.
本研究评估了低强度常时同步手轮椅训练对未经训练的健康女性的影响。训练组(n=9)接受了 7 周的仪器化手轮在电动跑步机(MDT)上的低强度上肢训练,每周 3 次,每次 30 分钟,强度为 30%的心率储备。对照组(n=10)未接受训练。使用 MDT 上的递增手轮测试来确定摄氧量(VO)、功率输出(PO)、心率(HR)、分钟通气量(V)和呼吸交换比(RER)的峰值,训练前后的亚最大 HR、VO 和总效率(GE)值。还评估了局部感知不适和感知用力(RPE)。训练显著提高了 PO(+20%)、HR(+3%)、RER(+5%)、亚最大 GE(+21%)、VO(-20%)、V(-33%)、HR(-12%)和 RPE 较低(7.1±0.5)(p<0.05)。VO 和 V 没有变化(p>0.05)。尽管 VO 没有提高,但低强度常时同步手轮训练提高了手轮的 PO,而 RPE 较低。此外,GE 增加,表明运动控制得到改善。手轮训练似乎是一种合适的运动模式,可以提高身体能力,预防未经训练的个体早期疲劳和过度使用。