组织氧化作为对运动员低负荷和高负荷背部坐的反应,并持续限制运动员的血液流动
Charles W C Simpson1,2, Katelyn S Moore1, Hoani K Smith1
1Department of Tourism, Sport and Society, Lincoln University, Christchurch, New Zealand.
Journal of sports sciences
|January 30, 2025
概括
低负荷血流限制训练与高袖压力提高了力量比高负荷训练. 肌肉氧化和脱氧预测运动员的力量增加.
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
- 肌肉生理学 肌肉生理学
背景情况:
- 血流限制 (BFR) 训练是一种增强肌肉力量和肌肉缩的方法.
- 了解BFR期间的肌肉氧化对于优化训练方案至关重要.
- 之前的研究已经探索了各种BFR参数,但高负荷 (HL) 与低负荷 (LL) 的直接比较在不同压力下是有限的.
研究的目的:
- 为了比较连续低负荷 (LL) BFR与高袖压力相比,高负荷 (HL) BFR与低袖压力对肌肉氧化和力量增加的影响.
- 为了研究肌肉氧化参数 (组织和指数 - TSI,脱氧血红蛋白 - HHb) 和力量改善 (1重复最大 - 1RM) 之间的关系.
主要方法:
- 两组运动员 (每组n=4) 接受了为期4周的耐力训练计划.
- 一组进行HL (80%1RM) 与低BFR压力 (20%AOP),另一个LL (30%1RM) 与高BFR压力 (60%AOP).
- 肌肉氧化率 (NIRS),SPO2,HR,杆速度和RPE在坐时被测量. 在训练前和训练后进行1RM评估.
主要成果:
- 在预设的3个运动变量和训练后的1RM之间发现了显著的关联,特别是TSI (R2=0.92) 和HHb (R2=0.79).
- 高袖压的LL-BFR训练预测后训练1RM比HL-BFR更强烈 (R2=0.99).
- 与HL-BFR组相比,LL-BFR组的运动员表现出更大的力量增加.
结论:
- 连续的低负荷血流限制训练与高袖压力是提高运动员肌肉力量的耐受性和有效方法.
- 肌肉氧化动态,特别是TSI和HHb度,是BFR训练后力量适应的重要预测因素.
- 与HL-BFR训练相比,LL-BFR训练在适当的袖口压力时可以提供更好的强度优势.
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