从手臂循环人体工程学分类强度域不同于腿循环人体工程学
Todd A Astorino1, Tanner Robson1, David W McMillan2
1Department of Kinesiology, CSU-San Marcos, San Marcos, California; and.
Journal of strength and conditioning research
|October 26, 2023
概括
腿循环人体工程学 (LCE) 在同等强度下提供比手臂循环人体工程学 (ACE) 更大的心脏代谢刺激. 这种差异在运动强度领域和炼期间的生理反应中很明显.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 心血管健康 心血管健康
背景情况:
- 了解运动强度领域对于优化训练至关重要.
- 腿循环人体工程学 (LCE) 和手臂循环人体工程学 (ACE) 是常见的方法,但它们的生理反应可能有所不同.
- 以前的研究没有直接比较LCE和ACE之间的强度域分布在匹配的功率输出.
研究的目的:
- 为了比较运动强度域在LCE和ACE之间的分布.
- 为了确定LCE是否会在相同的相对强度下引起比ACE更大的生理刺激.
- 分析这两种人体体体能测法类型之间的心肺呼吸和代谢反应的差异.
主要方法:
- 17名活跃参与者 (男性和女性) 接受了LCE和ACE的分级运动测试,以确定最大的氧气摄入量 (VO2max) 和峰值功率输出 (PPO).
- 随机交叉设计用于中等强度的连续炼,在两种模式下,PPO分别为20%,40%和60%.
- 收集了包括气体交换 (V·o2,V·co2,VE),心率 (HR),血乳酸 (BLa) 和感知反应在内的生理数据.
主要成果:
- 只有2名参与者在LCE和ACE的相同强度域中被分类.
- 与ACE相比,LCE导致更多的参与者在"强烈"和"接近最大"强度领域进行炼.
- 在LCE和ACE期间,在70%和80%以上的HRmax上花费的时间显著增加,以及在LCE和ACE期间更高的峰值和平均HR,V·o2和BLa.
结论:
- 与手臂循环相比,在相同的相对强度下进行渐进的腿循环会引起更大的心脏代谢刺激.
- 运动强度领域的分类在LCE和ACE之间存在显著差异.
- 这些发现表明,训练处方应该考虑有效的炼计划的模式特定生理需求.
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