Lakomy H K, Campbell I, Williams C
Dept of P.E. and Sports Science, Loughborough University of Technology.
Br J Sports Med. 1987 Sep;21(3):130-3. doi: 10.1136/bjsm.21.3.130.
The purpose of this study was to examine selected physiological characteristics and pushing performance over a distance of five kilometres (5 km) in twelve wheelchair athletes (10 paraplegics and 2 tetraplegics). The physiological tests and 5 km wheelchair time trials were performed on a motorised treadmill adapted for use by wheelchairs. The maximum oxygen uptake (VO2 max) and %VO2 max utilised at a fixed speed equivalent to a blood lactate concentration of 4 mmol.l-1, identified as being of importance in successful able-bodied endurance performance, were also found to correlate highly with 5 km performance in wheelchair athletes. Low correlations were found between performance and mean %VO2 max utilised over the whole distance and between performance and oxygen uptake at a standard speed. The results also showed that the tetraplegics had lower physiological reserves than the paraplegics, with a much reduced maximum heart rate and ventilation. The findings indicate that a combination of physiological characteristics influence pushing performance in wheelchair athletes.
本研究的目的是检测12名轮椅运动员（10名截瘫患者和2名四肢瘫痪患者）在5公里距离内的特定生理特征和推进表现。生理测试和5公里轮椅计时赛在一台适合轮椅使用的电动跑步机上进行。最大摄氧量（VO2 max）以及在相当于血乳酸浓度为4 mmol.l-1的固定速度下所利用的VO2 max百分比，这些因素在健全人的耐力表现中被认为很重要，研究还发现它们与轮椅运动员的5公里表现高度相关。在整个距离内所利用的平均VO2 max百分比与表现之间，以及在标准速度下的摄氧量与表现之间，相关性较低。结果还表明，四肢瘫痪患者的生理储备低于截瘫患者，其最大心率和通气量大幅降低。研究结果表明，多种生理特征共同影响轮椅运动员的推进表现。
