The Peter Harrison Centre for Disability Sport, Loughborough University, England, United Kingdom.
Int J Sports Med. 2011 Feb;32(2):126-31. doi: 10.1055/s-0030-1268439. Epub 2010 Dec 16.
The purpose of this study was to analyse adaptations in propulsion technique and gross efficiency in novice able-bodied subjects during the initial phase of learning hand-rim wheelchair propulsion to music. 22 able bodied participants performed wheelchair propulsion (1.1 m·s(-1)) followed by a VO(2) peak test on a wheelchair ergometer. Push frequency, gross efficiency (GE), heart rate, rating of perceived exertion and propulsion technique variables (force application and temporal characteristics) were recorded. Participants were then assigned to a 3-wk practice period listening to i) 125 beats·min(-1) tempo music (LOW); ii) 170 beats·min(-1) tempo music (HIGH); or iii) a control group (CON). Following practice, all participants repeated the pre-testing protocol whilst force application data was collected in practice trials 1 and 9. After accounting for the pre-practice differences in GE (using ANCOVA), GE was higher in LOW compared with CON (P=0.038; 6.6 vs. 6.1% respectively). The differences between CON vs. HIGH and LOW vs. HIGH (P=0.830; P=0.188) were trivial suggesting that only LOW experienced an increase in GE. Practice had a favourable effect on the perceptions of effort, work per cycle, push and cycle time in contrast to the CON group. The use of music in a rehabilitation setting warrants further investigation.
本研究旨在分析新手健全受试者在学习按音乐节奏使用手轮轮椅推进过程中推进技术和总效率的适应性变化。22 名健康参与者在轮椅测功计上进行轮椅推进（1.1 m·s(-1))，然后进行 VO(2)峰值测试。记录推频、总效率（GE）、心率、感知用力等级和推进技术变量（力的应用和时间特征）。然后，参与者被分配到 3 周的练习期，分别听：i）125 拍/分钟（LOW）的节奏音乐；ii）170 拍/分钟（HIGH）的节奏音乐；或 iii）对照组（CON）。练习结束后，所有参与者重复预测试协议，同时在练习试验 1 和 9 中收集力的应用数据。在使用协方差分析（ANCOVA）考虑到 GE 的预练习差异后，LOW 组的 GE 高于 CON 组（P=0.038；分别为 6.6%和 6.1%）。CON 组与 HIGH 组以及 LOW 组与 HIGH 组之间的差异微不足道（P=0.830；P=0.188），表明只有 LOW 组的 GE 有所增加。与 CON 组相比，练习对用力感知、每周期工作量、推和周期时间都有有利影响。在康复环境中使用音乐值得进一步研究。
