Mouser J Grant, Dankel Scott J, Mattocks Kevin T, Jessee Matthew B, Buckner Samuel L, Abe Takashi, Loenneke Jeremy P
Department of Health, Exercise Science, and Recreation Management, Kevser Ermin Applied Physiology Laboratory, The University of Mississippi, University, MS, USA.
Clin Physiol Funct Imaging. 2018 Jan 21. doi: 10.1111/cpf.12504.
Much of the literature examining blood flow restriction in the lower body uses cuffs of differing widths. It is currently unknown whether similar relative pressures using cuffs of differing widths elicit the same blood flow response.
To examine the hemodynamic responses to relative pressures using two commonly used cuffs (10 and 12 cm).
In a random order over two laboratory visits, one cuff was applied to the right proximal thigh of the participant (men = 17, women = 14), and arterial occlusion pressure (AOP) was measured. Ultrasound measures of blood flow, mean blood velocity, peak blood velocity and artery diameter were taken from the posterior tibial artery at rest and during the application of 10% increments of the AOP.
There was no significant difference between the 10- and 12-cm cuff relating to blood flow (-0·501 ml min , SD 7·9, P = 0·728), mean blood velocity (-0·168 cm s , SD 1·7, P = 0·590), peak blood velocity (0·586 cm s , SD 11·7, P = 0·783) or artery diameter (0·003 cm, SD 0·02, P = 0·476). There was a main effect of pressure for blood flow (P<0·0005), mean blood velocity (P<0·0005), peak blood velocity (P<0·0005) and artery diameter (P = 0·005), with each decreasing with increasing pressures. Peak blood velocity increased to 60% of AOP before decreasing with increased pressure.
As long as relative pressures are applied, cuff width appears to have little to no effect on the blood flow stimulus during blood flow restriction at rest.
许多研究下肢血流限制的文献使用了不同宽度的袖带。目前尚不清楚使用不同宽度袖带时，相似的相对压力是否会引发相同的血流反应。
研究使用两种常用袖带（10厘米和12厘米）对相对压力的血流动力学反应。
在两次实验室访视中按随机顺序，将一个袖带应用于参与者（男性 = 17人，女性 = 14人）的右大腿近端，并测量动脉闭塞压（AOP）。在静息状态下以及以AOP的10%递增施加压力期间，从胫后动脉获取血流、平均血流速度、峰值血流速度和动脉直径的超声测量值。
10厘米和12厘米袖带在血流（-0.501毫升/分钟，标准差7.9，P = 0.728）、平均血流速度（-0.168厘米/秒，标准差1.7，P = 0.590）、峰值血流速度（0.586厘米/秒，标准差11.7，P = 0.783）或动脉直径（0.003厘米，标准差0.02，P = 0.476）方面无显著差异。压力对血流（P<0.0005）、平均血流速度（P<0.0005）、峰值血流速度（P<0.0005）和动脉直径（P = 0.005）有主要影响，各指标均随压力增加而降低。峰值血流速度在随压力增加而降低之前增加到AOP的60%。
只要施加相对压力，在静息血流限制期间，袖带宽度似乎对血流刺激几乎没有影响。
