间歇性部曲会诱导比吸入值负载更大的cleidomastoid脱氧
Melissa Miles1, Paul Davenport2, Sunita Mathur3
1Department of Physical Therapy, University of Toronto, 160-500 University Avenue, Toronto, ON, M5G 1V7, Canada.
间歇性部曲 (INF) 显著地激活了 sternocleidomastoid 肌肉,超过了启发值负荷 (ITL). 这表明INF可能是启发性肌肉训练的可行替代方案,特别是对于机械通风患者.
科学领域:
- 呼吸系统生理学 呼吸系统生理学
- 运动生理学 运动生理学
- 肌肉的新陈代谢
背景情况:
- 鼓舞性肌肉训练对于呼吸系统康复至关重要.
- 了解不同励志运动的代谢需求对于优化训练方案至关重要.
- 关节肌肉,关节肌肉和腹膜/肋间肌肉是关键的灵感肌肉.
研究的目的:
- 在健康成年人中,在次最大间歇性曲 (INF) 和次最大吸气值负荷 (ITL) 期间,比较大肠,大肠,腹膜/腰间膜/腰间膜的脱氧模式.
- 评估与这两种启发性负载方法相关的代谢活动和感知劳动.
主要方法:
- 一个随机的交叉设计与14名健康参与者被采用.
- 参与者执行了亚最大INF和ITL,每个目标是最大自愿收缩或灵气压力的50%,直到任务失败.
- 近红外光谱 (NIRS) 测量了关键的呼吸肌肉中的肌肉脱氧 (ΔHHb) 和氧化 (ΔO2Hb).
主要成果:
- 在INF期间,硬骨cleidomastoid表现出较大的初始脱氧,与ITL相比.
- 在同位素时段,在INF期间,大脑细胞质体血量 (ΔtHb) 和氧化量 (ΔO2Hb) 较高.
- 在INF期间,与ITL相比,在任务失败时报告的感知力度较低 (Borg分数).
结论:
- 间歇性部曲 (INF) 引起了硬骨肌中显著的代谢活动.
- 与启发性值负载 (ITL) 相比,INF导致人们对努力的感知较低.
- INF可以作为一种替代的启发性肌肉训练方法,特别是对于机械通风的个体.
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