长时间的运动会在适度到重度强度过渡时改变呼吸系统参数
Julian D Stevenson1, Andrew E Kilding1, Daniel J Plews1
1Sports Performance Research Institute New Zealand, Auckland University of Technology, Auckland, New Zealand.
European journal of applied physiology
|July 26, 2023
概括
长时间的骑自行车会在中度到重度强度过渡期间改变呼吸模式. 虽然每分钟通风 (V·E) 保持稳定,但运动后呼吸率增加,潮体积减少.
科学领域:
- 运动生理学 运动生理学
- 呼吸系统生理学 呼吸系统生理学
- 体育科学 运动科学 运动科学
背景情况:
- 了解呼吸系统对运动的反应对于优化训练至关重要.
- 由第一个呼吸门 (VT1) 标志着中度至强度的过渡,意味着一个关键的生理变化.
- 长时间的运动可能会改变这些呼吸反应.
研究的目的:
- 量化长时间循环对通风 (V·E),呼吸频率 (FR) 和潮体积 (VT) 在VT1.1的影响.
- 为了研究这些参数在延长中等强度循环运动之前和之后的变化.
主要方法:
- 14名训练有素的骑自行车者在骑自行车2小时前后完成了VT1评估.
- 测量包括输出功率,V·E,FR和VT在VT1.
- 统计分析比较了PRE和POST运动条件.
主要成果:
- 在VT1的功率输出在训练后减少了大约10%.
- 在VT1的每分钟通风率 (V̇E) 保持稳定 (PRE:72 L/min与POST:69 L/min).
- 呼吸率 (FR) 显著增加 (16%),而潮体积 (VT) 显著下降 (16%) 运动后.
结论:
- 长时间的运动会在中度至重度强度过渡时改变呼吸机制.
- 通过增加呼吸速率和减少潮体积,保持每分钟通风 (V·E).
- 实时V̇E监测可以帮助评估长时间活动期间的运动强度.
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