Key result
Whole body vibration with blood flow restriction acutely increased von Willebrand factor levels by 17.2% more than WBV alone, but both groups showed equal decrements after 8 weeks.
Why the study?
Blood flow restriction exercise improves muscle performance, but there is limited research on vascular dysfunction, particularly when combining an involuntary muscle contraction modality with blood flow restriction.
Does whole body vibration combined with blood flow restriction affect von Willebrand factor levels in physically inactive men compared to whole body vibration alone?
RCT (n=16)
Does whole body vibration combined with blood flow restriction affect von Willebrand factor levels in physically inactive men compared to whole body vibration alone?
Answers are grounded in this paper and cite their sources.
While adding blood flow restriction to whole body vibration acutely increases markers of vascular dysfunction, 8 weeks of training with or without blood flow restriction yields similar improvements in vascular function in inactive men.
BACKGROUND: Blood flow restriction (BFR) exercise benefits muscle performance. However, there is limited research on vascular dysfunction, particularly using involuntary muscle contraction modality plus BFR. OBJECTIVE: To investigate the acute and accumulative effects of whole body vibration (WBV) with BFR on vascular dysfunction, as evaluated by von Willebrand factor (vWF) levels. METHODS: Physically inactive men were randomly assigned to the WBV [Formula: see text] BFR group ([Formula: see text] 8) and the WBV group ([Formula: see text] 8). Participants in the WBV group were subjected to 10 sets of internment WBV exercise 20 min/day, 3 days/week for 8 weeks. Participants in the WBV [Formula: see text] BFR group received the same WBV treatment, but the proximal portion of the thighs was compressed by inflatable cuffs. RESULTS: The increase in vWF levels in the acute WBV [Formula: see text] BFR group was significantly higher ([Formula: see text] 0.05) by 17.2% than that in the WBV group. However, vWF levels exhibited equal decrements in the two groups after training ([Formula: see text] 0.05). CONCLUSIONS : WBV [Formula: see text] BFR may acutely cause vascular dysfunction potential to a greater extent than WBV alone. However, regular WBV and WBV [Formula: see text] BFR training may produce an equally beneficial effect on vascular function in a previously untrained population.
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Lin et al. (2019) conducted an RCT in Physically inactive (n=16). Whole body vibration (WBV) with blood flow restriction (BFR) vs. Whole body vibration (WBV) alone was evaluated on von Willebrand factor (vWF) levels (17.2% higher increase, p=< 0.05). Whole body vibration with blood flow restriction acutely increased von Willebrand factor levels by 17.2% more than WBV alone, but both groups showed equal decrements after 8 weeks.
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