Key result
BFRT, WBV, and BFRT + WBV interventions all significantly improved 0-20 m sprint performance compared to baseline (p < 0.05), with no significant differences between the three interventions.
Why the study?
The acute effects of blood flow restriction training, whole-body vibration, and their combination on sprint performance, muscle activation, and metabolic accumulation in male sprinters were not well established.
Does Blood Flow Restriction Training combined with Whole-Body Vibration improve sprint performance, muscle activation, and metabolic accumulation compared to either intervention alone in male sprinters?
RCT (n=16)
Randomized crossover
No
Does Blood Flow Restriction Training combined with Whole-Body Vibration improve sprint performance, muscle activation, and metabolic accumulation compared to either intervention alone in male sprinters?
BFRT and WBV alone provide similar acute enhancements in sprint performance compared to their combination, though BFRT alone induces higher immediate metabolic accumulation.
May enhance acute sprint performance in male athletes; hypothesis-generating for combined BFR+WBV training protocols.
Purpose: The aim of this study was to explore the acute effects of Blood Flow Restriction Training (BFRT), Whole-Body Vibration (WBV), and BFRT + WBV on the 20 m sprint, muscle activation, and metabolic accumulation in male sprinters. Method: Sixteen male sprinters randomly performed BFRT, WBV, or BFRT + WBV interventions with 72 h intervals. Electromyography (EMG) signals were collected before and during interventions. Fingertip blood was taken before, immediately after, and 15 min after the intervention. 20 m sprint was performed before and 3 min after the intervention. Results: 1) 0–10m and 0–20 m sprint performance were significantly improved after WBV and BFRT + WBV interventions ( p < 0.05), 0–20 m sprint performance was significantly improved after all three interventions ( p < 0.05), 2) After BFRT + WBV intervention, the EMG amplitude of the vastus lateralis and soleus were significantly improved. Greater increases in EMG activity of the tibialis anterior muscle ( p < 0.05)and blood lactate ( p < 0.05)were observed following BFRT intervention compared to BFRT + WBV intervention. Conclusion: For sprint performance, BFRT and WBV had similar post-activation enhancement effects to BFRT + WBV, and the metabolic accumulation immediately following the BFRT were higher than that following BFRT + WBV in male sprinters.
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Zhang et al. (2023) conducted an RCT in Healthy male sprinters (n=16). Blood Flow Restriction Training (BFRT) and/or Whole-Body Vibration (WBV) vs. Baseline (pre-intervention) was evaluated on 0-20 m sprint time (p=<0.05). BFRT, WBV, and BFRT + WBV interventions all significantly improved 0-20 m sprint performance compared to baseline (p < 0.05), with no significant differences between the three interventions.
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