Physical Education and Recreation, University of Alberta, Edmonton, Alberta, Canada.
J Sports Sci. 2012;30(6):583-9. doi: 10.1080/02640414.2012.658843. Epub 2012 Feb 9.
In the third study of this series, we examined how circles with a suspended aid would vary depending of the gymnast's level of expertise. We analysed circles with the aid performed by three groups of eight gymnasts: expert, intermediate, and developing groups. The gymnasts for the expert and intermediate groups were selected from the previous studies based on judges' evaluation of their non-aid circles. The developing group of eight gymnasts, who were unable to perform circles on pommel horse without an aid, were added to this study and performed three sets of 10 circles on the pommel horse with the aid. Discriminative biomechanical variables identified in the previous two studies were used to compare circles with the aid among the three groups. As a result, the expert group demonstrated a larger pommel reaction force and a smaller aid reaction force than the other two groups, implying that they were less dependent on the aid. The smaller aid reaction force resulted in a smaller net hip joint moment. Furthermore, the expert group showed a shorter total duration and a greater shoulder excursion. In summary, the suspended aid can be used in a progressive manner depending on the gymnast's level of expertise.
在本系列的第三项研究中，我们研究了悬挂辅助装置的圆圈会如何根据体操运动员的专业水平而变化。我们分析了由三组八名体操运动员完成的带有辅助装置的圆圈：专家组、中级组和发展组。专家组和中级组的体操运动员是根据评委对他们无辅助圆圈的评估，从之前的研究中挑选出来的。发展组的八名体操运动员在没有辅助装置的情况下无法在鞍马上完成圆圈动作，因此被纳入了这项研究，他们在鞍马上使用辅助装置完成了三组各 10 个圆圈。在前两项研究中确定的鉴别性生物力学变量被用于比较三组运动员的辅助圆圈。结果表明，与其他两组相比，专家组的鞍马反作用力更大，辅助反作用力更小，这表明他们对辅助装置的依赖性较小。较小的辅助反作用力导致髋关节净力矩更小。此外，专家组的总持续时间更短，肩部移动距离更大。总之，悬挂辅助装置可以根据运动员的专业水平逐步使用。
