Runciman Phoebe, Derman Wayne, Ferreira Suzanne, Albertus-Kajee Yumna, Tucker Ross
From the UCT/MRC Research Unit for Exercise Science and Sports Medicine, University of Cape Town (PR, WD, YA-K, RT); International Olympic Committee Research Centre, Cape Town (WD); and Department of Sport Science, Stellenbosch University, South Africa (SF).
Am J Phys Med Rehabil. 2015 Jan;94(1):28-37. doi: 10.1097/PHM.0000000000000136.
This study investigated the sprint cycling performance and neuromuscular characteristics of Paralympic athletes with cerebral palsy (CP) during a fatiguing maximal cycling trial compared with those of able-bodied (AB) athletes.
Five elite athletes with CP and 16 AB age- and performance-matched controls performed a 30-sec Wingate cycle test. Power output (W/kg) and fatigue index (%) were calculated. Electromyography was measured in five bilateral muscles and expressed in mean amplitude (mV) and median frequency (Hz).
Power output was significantly higher in the AB group (10.4 [0.5] W/kg) than in the CP group (9.8 [0.5] W/kg) (P < 0.05). Fatigue index was statistically similar between the AB (27% [0.1%]) and CP (25% [0.1%]) groups. Electromyographic mean amplitude and frequency changed similarly in all muscle groups tested, in both affected and nonaffected sides, in the CP and AB groups (P < 0.05). Neuromuscular irregularities were identified in the CP group.
The similarity in fatigue between the CP and AB groups indicates that elite athletes with CP may have a different exercise response to others with CP. The authors propose that this may result from high-level training over many years. This has rehabilitative implications, as it indicates near-maximal adaptation of the CP body toward normal levels.
本研究调查了脑瘫（CP）残奥会运动员在疲劳性最大骑行试验中的短距离骑行表现和神经肌肉特征，并与健全（AB）运动员进行比较。
5名精英CP运动员和16名年龄及表现匹配的AB对照组进行了30秒的温盖特骑行测试。计算功率输出（W/kg）和疲劳指数（%）。在五对双侧肌肉中测量肌电图，并以平均振幅（mV）和中位频率（Hz）表示。
AB组的功率输出（10.4 [0.5] W/kg）显著高于CP组（9.8 [0.5] W/kg）（P < 0.05）。AB组（27% [0.1%]）和CP组（25% [0.1%]）的疲劳指数在统计学上相似。CP组和AB组中，所有测试肌肉群在患侧和非患侧的肌电图平均振幅和频率变化相似（P < 0.05）。在CP组中发现了神经肌肉异常。
CP组和AB组在疲劳方面的相似性表明，精英CP运动员对运动的反应可能与其他CP患者不同。作者提出，这可能是多年高水平训练的结果。这具有康复意义，因为它表明CP患者的身体已接近最大程度地适应正常水平。
