Bhambhani Y N, Holland L J, Steadward R D
Faculty of Rehabilitation Medicine, University of Alberta, Edmonton, Canada.
Arch Phys Med Rehabil. 1992 Mar;73(3):246-52.
This study examined the validity and reliability of maximal aerobic power (VO2max) during wheelchair ergometry (WE) in wheelchair athletes with cerebral palsy. Six class 3 and class 4 male athletes with cerebral palsy completed two graded exercise tests to volitional fatigue on a wheelchair ergometer mounted on frictionless rollers. Four athletes were also able to complete two tests of bicycle ergometry (BE). Although the reliability coefficients for the VO2max during the two exercise modes were high (.89 and .93 for the WE and BE tests, respectively), the validity coefficients for this variable (ie, the correlations between WE and BE) were poor (.31 and -.24 for trials 1 and 2, respectively). Examination of the individual data indicated that athletes who used wheelchairs as their primary mode of ambulation had higher VO2max values during WE; whereas, those who used canes or no aids for daily ambulation had higher values on BE. Because of the specificity of the, VO2max response, it is recommended that the primary mode of ambulation be considered when deciding on the testing mode for evaluating the cardiorespiratory fitness of athletes with cerebral palsy.
本研究检验了脑瘫轮椅运动员在轮椅测力计（WE）测试期间最大有氧功率（VO2max）的有效性和可靠性。六名3级和4级男性脑瘫运动员在安装有无摩擦滚轮的轮椅测力计上完成了两次分级运动测试，直至出现意志性疲劳。四名运动员还能够完成两次自行车测力计（BE）测试。尽管两种运动模式下VO2max的可靠性系数都很高（WE测试和BE测试分别为0.89和0.93），但该变量的有效性系数（即WE和BE之间的相关性）很差（试验1和试验2分别为0.31和-0.24）。对个体数据的检查表明，以轮椅作为主要移动方式的运动员在WE测试期间VO2max值较高；而那些在日常移动中使用手杖或不使用辅助工具的运动员在BE测试中的值较高。由于VO2max反应的特异性，建议在决定评估脑瘫运动员心肺适能的测试模式时，考虑其主要移动方式。
