每天限制血液流动不会在两周的床上休息期间保持肌肉质量和力量
Cas J Fuchs1, Wesley J H Hermans1, Jean Nyakayiru1
1Department of Human Biology, Faculty of Health, Medicine and Life Sciences, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Centre+, Maastricht, The Netherlands.
床上休息期间的血流限制 (BFR) 并不能防止肌肉损失或力量下降. 这项研究发现,BFR在两周不活动后不会影响肌肉蛋白质合成率,肌肉质量或力量.
科学领域:
- 运动生理学 运动生理学
- 肌肉生物学 肌肉生物学
- 康复科学 康复科学 康复科学
背景情况:
- 长时间的床上休息会导致显著的骨肌肉缩和力量减少.
- 血流限制 (BFR) 是一种潜在的干预措施,可以减轻不活动期间的肌肉损失.
- 在严格的床上休息期间,BFR在维护肌肉质量和功能方面的有效性需要进一步研究.
研究的目的:
- 为了确定血流限制 (BFR) 对肌肉蛋白质合成率的影响.
- 为了评估BFR对肌肉质量和力量在2周严格的床上休息期间的影响.
- 评估BFR是否可以减轻与床上休息相关的肌肉损失和力量下降.
主要方法:
- 12名健康的男性接受了14天的严格床上休息.
- 单侧血流限制 (BFR) 每天应用于一条腿,每天三次.
- 测量了肌肉蛋白质合成,瘦身量,大腿肌肉体积和腿部伸展强度 (1RM).
主要成果:
- 床上休息导致BFR和对照腿部显著减少瘦身量和大腿肌肉体积.
- 肌肉力量 (1RM) 在两条腿显著下降,BFR和对照之间没有差异.
- 在床上休息期间,肌肉蛋白质合成率在BFR和对照腿之间没有差异.
结论:
- 两周严格的床上休息大大减少了骨肌肉质量和力量.
- 在床上休息期间应用的血流限制 (BFR) 不能调节每日肌肉蛋白质合成率.
- 在长时间的床上休息期间,BFR不能有效地保持肌肉质量或力量.
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