Blood flow restriction walking and physical function in older adults: A randomized control trial
Blood flow restriction walking and physical function in older adults: A randomized control trial
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DOI：
10.1016/j.jsams.2017.04.012
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发表时间：
2017-12-01
影响因子：
4
通讯作者：
Warmington, Stuart Anthony
中科院分区：
文献类型：
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作者：
Clarkson, Matthew John;Conway, Louise;Warmington, Stuart Anthony
目标：老年人肌肉健康和身体功能随年龄的进行性下降与肌肉大小和力量有关。在限制血流的情况下步行是维持老年人肌肉体积的另一种选择，以增加步行时间的价值。因此，本研究的目的是检验在低强度步行中加入血流限制对身体功能临床测量的影响。 设计/方法：久坐的老年男性和女性被随机分为低强度血流限制步行组（BFRW；n = 10）或非血流限制步行对照组（CON：n = 9）。参与者在基线、三周和六周时接受了 30 秒坐站测试、六分钟步行测试、计时起立行走测试以及修改后的女王学院步测试的评估。同时对基线、三周和六周的训练课程进行感知劳累 (RPE) 评级。结果：与 CON 相比，这些老年人在所有身体功能指标上的表现通常提高 2.5-4.5 倍。然而，与 CON（8 +/- 0；7 +/- 0；8 +/- 0）相比，BFRW 在所有时间点（基线、三周、六周：14 +/- 0；11 +/- 0；11 +/- 0）的 RPE 均较高，尽管 BFRW 在整个研究中有所下降。 结论：血流限制对身体功能的更大改善表明，这种添加可以提高以下人群的简单步行运动的质量：可能禁忌进行大负荷阻力训练。 (C) 2017 年澳大利亚运动医学。由爱思唯尔有限公司出版，保留所有权利。
Objectives: The progressive age-related declines in muscle health and physical function in older adults are related to muscle size and strength. Walking with an applied blood flow restriction is an alternative to maintain muscle volume in older adults to increase the value for time spent walking. Therefore, the aim of this study was to examine the effect of adding blood flow restriction to low-intensity walking on clinical measures of physical function.Design/methods: Sedentary older men and women were randomised to either a low-intensity blood flow restriction walking group (BFRW; n = 10), or a non-blood flow restriction walking control group (CON: n = 9). Participants were assessed at baseline, three-weeks and six-weeks for the 30second sit to stand, six-minute walk test, timed up and go, and a modified Queen's College step test. While a rating of perceived exertion (RPE) for training sessions at baseline, three-weeks and six-weeks.Results: BFRW typically resulted in a 2.5-4.5 fold greater improvement in performance on all measures of physical function compared with CON among these older adults. However, RPE was greater for BFRW at all time points (for baseline, three-weeks, six-weeks: 14 +/- 0; 11 +/- 0; 11 +/- 0) compared with CON (8 +/- 0; 7 +/- 0; 8 +/- 0), despite declining across the study for BFRW.Conclusions: The greater improvement in physical function with blood flow restriction demonstrates how this addition can increase the quality of simple walking exercise for populations that may be contraindicated to heavy-load resistance training. (C) 2017 Sports Medicine Australia. Published by Elsevier Ltd. all rights reserved.