...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Medical engineering & physics. >Influence of task complexity on mechanical efficiency and propulsion technique during learning of hand rim wheelchair propulsion.
【24h】

Influence of task complexity on mechanical efficiency and propulsion technique during learning of hand rim wheelchair propulsion.

机译：学习手轮轮椅推进过程中任务复杂度对机械效率和推进技术的影响。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

OBJECTIVE: To investigate the consequence of task complexity on gross mechanical efficiency and propulsion technique during the learning process of hand rim wheelchair propulsion. METHODS: Three groups of unimpaired subjects (N=10 each) received a 3-week wheelchair practice period (3 week(-1), nine practice trials) with different levels of complexity, i.e. propelling a stationary wheelchair ergometer, wheelchair propulsion on a motor-driven treadmill or at a circular wheelchair track. During practice trials 1 and 9, gross mechanical efficiency and propulsion technique variables (work per cycle, cycle frequency, push and cycle time, effective force) were measured. RESULTS: Using multi-level regression analysis, no differences in the development over time in mechanical efficiency and propulsion technique could be discerned between the three conditions of task complexity. Only the percentage push time during the cycle decreased significantly more in the group that practiced on the ergometer compared to the treadmill-practice group. For all three groups a change over time was shown for cycle frequency, push time and cycle time. DISCUSSION: Under the current experimental conditions, task complexity does not have an influence on gross mechanical efficiency and propulsion technique during the learning process of wheelchair propulsion. The 3-week practice period had a favorable practice effect on timing regardless of the task complexity.
机译：目的：研究手轮轮椅推进学习过程中任务复杂性对总体机械效率和推进技术的影响。方法：三组无障碍受试者（每人N = 10）接受为期3周的轮椅练习期（3周（-1），共9次练习试验），其复杂程度不同，即推动固定式轮椅测功机，在轮椅上推进轮椅电动跑步机或轮椅圆形跑道上。在实践试验1和9中，测量了总的机械效率和推进技术变量（每个周期的工作量，周期频率，推力和周期时间，有效力）。结果：使用多级回归分析，在任务复杂性的三个条件之间，机械效率和推进技术的发展没有区别。与跑步机练习组相比，在测功机上练习的组中，只有周期内推动时间的百分比显着减少。对于所有三个组，显示了周期频率，推动时间和周期时间随时间的变化。讨论：在当前的实验条件下，在轮椅推进的学习过程中，任务的复杂性不会影响总的机械效率和推进技术。不管任务的复杂性如何，为期3周的练习期对时间安排都有良好的练习效果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号