强烈的强度心率炼运动不会引起推的氧气消耗率
Clara J Mitchinson1, Djadmann Gustave2, Pasquale J Succi2
1University of Kentucky, Kinesiology and Health Promotion, Lexington, KY, USA. clara.mitchinson@uky.edu.
European journal of applied physiology
|November 30, 2024
概括
在剧烈炼期间紧心率 (HR) 并不能始终达到目标代谢需求. 只有中等HR强度符合指导方针,这表明HR-clamp可能无法可靠地规定剧烈的运动强度.
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
- 心血管监管 监管心血管系统
背景情况:
- 强烈的强度运动对于健康益处至关重要.
- 心率 (HR) 是运动强度的常见代数.
- HR-clamp协议旨在在运动期间保持特定的HR.
研究的目的:
- 为了研究功率输出,代谢 (V·O2) 需求,通风,呼吸率和在强烈强度 (77-95%HRpeak) 的HR-clamp循环人体力学过程中感知到的劳动力.
- 为了确定HR-clamp是否有效地引起持续的代谢刺激,会议制定了强有力的运动指南.
主要方法:
- 15名男性接受了分级运动测试,以确定峰值HR.
- 参与者完成了三次随机HR-clamp试验,在较低 (77%HR峰值),中 (86%HR峰值) 和较高 (95%HR峰值) 的强度下,完成了疲劳.
- 评估了输出功率的变化,V·O2,每分钟的通风,呼吸速率,以及随着时间的推移感知到的劳动力.
主要成果:
- 随着HR强度的增加,疲劳的时间显著减少 (HR_L: 56.05分钟,HR_M: 44.22分钟,HR_H: 9.74分钟).
- 在所有试验中,功率输出和V·O2随着时间的推移而下降,而呼吸率保持不变,感知到的劳动力增加.
- 代谢V·O2反应在HR_L和HR_M试验的强度建议以下,比HR_H试验更早.
结论:
- 只有中等HR强度 (86%HR峰值) 试验符合至少20分钟达到强烈强度V̇O2的指导方针.
- 当前的HR-clamp协议可能不会在单次训练中始终规定强度炼的预期代谢刺激.
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