主跑者的时空和运动调整可能与跑步过程中的相对生理力度有关
Parunchaya Jamkrajang1, Sarit Suwanmana1, Weerawat Limroongreungrat1
1College of Sports Science and Technology, Mahidol University, Nakhon Pathom, Thailand.
Frontiers in sports and active living
|October 27, 2023
概括
主跑者通过增加生理力度来实现与年轻跑者相似的跑步经济,而不一定是通过生物力学变化. 与年龄相关的运行调整可能是战略性的,而不是不可避免的.
科学领域:
- 运动生理学 运动生理学
- 生物力学 生物力学
- 老年学是指老年学的学科.
背景情况:
- 主跑者表现出悖论性的良好的运行经济,尽管生物力学特征表明相反.
- 较高的生理力度 (最大氧气吸收的百分比) 可能解释了这种差异.
- 在持续的,不详尽的努力中,运行生物力学与年龄相关的变化尚未得到充分理解.
研究的目的:
- 为了研究主跑者的生物力学调整是否依赖于生理上的努力.
- 为了探索与年龄相关的生物力学变化,在30分钟的持续运行中以相匹配的相对强度运行.
- 了解衰老,生物力学和运行经济之间的相互作用.
主要方法:
- 年轻和专业的跑步者完成了30分钟的跑步机跑步,他们的最大氧气摄入量 (VO2-max) 的70%.
- 在跑步开始和结束时收集了时空空间和下肢动力学数据.
- 分析的重点是比较年龄组之间的生物力学变量在匹配的生理负载下.
主要成果:
- 两组之间在步骤/步伐长度,膝盖触地角度和膝盖度方面发现了差异.
- 步骤频率,垂直质量中心振荡和膝盖运动范围保持相似.
- 这些相似之处表明,与年龄相关的调整可能是适应性策略.
结论:
- 主跑者可以通过增加生理力度而不是仅仅通过生物力学适应来维持跑步经济.
- 某些生物力学特征不一定会因衰老而受损,但可以保持.
- 相对生理上的努力是分析与年龄相关的跑步生物力学时需要考虑的关键因素.
相关概念视频
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Definition
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Purposes