Acute Effect of Repeated Sprint Exercise With Blood Flow Restriction During Rest Periods on Muscle Oxygenation

PURPOSE: This study aimed to examine the effect of applying BFR during rest periods of repeated cycling sprints on muscle oxygenation. METHODS: Seven active males performed 5 × 10-s maximal pedaling efforts with 40-s passive rest, with or without BFR application during rest period. BFR was applied f...

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Detalles Bibliográficos
Autores principales: Kojima, Chihiro, Yamaguchi, Keiichi, Ito, Hiroto, Kasai, Nobukazu, Girard, Olivier, Goto, Kazushige
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Physiology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8358934/
https://www.ncbi.nlm.nih.gov/pubmed/34393809
http://dx.doi.org/10.3389/fphys.2021.665383
Descripción
Sumario:PURPOSE: This study aimed to examine the effect of applying BFR during rest periods of repeated cycling sprints on muscle oxygenation. METHODS: Seven active males performed 5 × 10-s maximal pedaling efforts with 40-s passive rest, with or without BFR application during rest period. BFR was applied for 30 s between sprints (between 5 and 35 s into rest) through a pneumatic pressure cuff inflated at 140 mmHg. Vastus lateralis muscle oxygenation was monitored using near-infrared spectroscopy. In addition, blood lactate concentration and heart rate were also evaluated. RESULTS: The BFR trial showed significantly lower oxyhemoglobin (oxy-Hb) and tissue saturation (StO(2)) levels than the CON trial (P < 0.05). However, power output and blood lactate concentration did not significantly differ between the two trials (P > 0.05). CONCLUSION: Applying BFR during rest periods of repeated cycling sprints decreased muscle oxygenation of active musculature, without interfering with power output during sprints.

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