AUTHOR=Zhang Junjie , Zhou Ruihang , Zhao Ningning , Li Yamei , Liu Haiyuan , Zhang Wanxia , Guo Wenxia 

TITLE=Acute effects of blood flow restriction with whole-body vibration on sprint, muscle activation and metabolic accumulation in male sprinters

JOURNAL=Frontiers in Physiology

VOLUME=14

YEAR=2023

URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2023.1149400

DOI=10.3389/fphys.2023.1149400

ISSN=1664-042X

ABSTRACT=<p><bold>Purpose:</bold> 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.</p><p><bold>Method:</bold> 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.</p><p><bold>Results:</bold> 1) 0–10m and 0–20 m sprint performance were significantly improved after WBV and BFRT + WBV interventions (<italic>p</italic> &lt; 0.05), 0–20 m sprint performance was significantly improved after all three interventions (<italic>p</italic> &lt; 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 (<italic>p</italic> &lt; 0.05)and blood lactate (<italic>p</italic> &lt; 0.05)were observed following BFRT intervention compared to BFRT + WBV intervention.</p><p><bold>Conclusion:</bold> 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.</p>