跑步和血流限制对气体交换和感知反应的急性影响
Sean M Lubiak1, Christopher E Proppe1, Paola M Rivera1
1Division of Kinesiology, School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, Florida.
Journal of strength and conditioning research
|February 20, 2025
概括
在90%的最高速度运行时,血液流量限制 (BFR) 显示与没有BFR相似的气体交换,但增加了感知疼痛. 在需要时,BFR可能有助于降低运动强度.
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
- 心血管健康 呼吸系统健康
背景情况:
- 血流限制 (BFR) 是一种用于增强生理反应的训练方法.
- 了解在像跑步这样的动态运动中BFR的急性影响对于实际应用至关重要.
- 以前的研究主要集中在使用BFR的抵抗运动上.
研究的目的:
- 为了研究血液流量限制 (BFR) 对气体交换和在不同强度跑步时的感知反应的急性影响.
- 为了比较在峰值氧气消耗 (V·o2) 的不同百分比下,在使用BFR和不使用BFR之间运行的生理和感知结果.
主要方法:
- 十二名大学年龄的男性完成了四次3分钟的跑步,在70%,80%和90%的峰值V·o2与BFR,在100%的峰值V·o2没有BFR.
- 在总动脉封闭压力的40%时,双边应用BFR.
- 在整个跑步过程中测量了气体交换变量 (V·o2,V·co2,V·E) 和感知反应 (RPE,疼痛).
主要成果:
- 氧气消耗 (V·o2),二氧化碳产量 (V·co2) 和每分钟通风 (V·E) 随着运行速度的增加而增加.
- 在90%BFR和100%NOBFR条件下,VO2和VE相似.
- 感知劳力的评分 (RPE) 在90%BFR和100%NOBFR时是最高的,而与100%NOBFR相比,90%BFR的疼痛更大.
结论:
- 在90%的峰值速度运行时,血液流量限制 (BFR) 引起了与运行在100%没有BFR时相似的V·o2和V·E反应.
- 在90%的峰值跑步速度下,BFR并没有减少感知到的劳动力和增加疼痛感知.
- 在运行过程中,BFR对气体交换的影响主要取决于速度,并且可能具有微不足道的影响.
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