Hemodynamic Responses to Resistance Exercise with Blood Flow Restriction Using a Practical Method Versus a Traditional Cuff-Inflation System

Abstract

The aim of this study was to examine the potential differences in acute hemodynamic responses and muscular performance outcomes following resistance exercise between traditional blood flow restriction (TRA(BFR)) and a novel band tissue flossing method (BTFBFR). METHODS: Fifteen healthy young adults (23.27 +/- 2.69 years) visited the lab for three sessions (>= 72 h apart). Each session's exercise consisted of three sets of 20 maximum-effort seated leg extensions and flexions with one of three conditions: control (CON), TRA(BFR) (50% limb occlusion pressure (LOP)), or BTFBFR. During TRA(BFR) and BTFBFR sessions, occlusion was applied immediately prior to exercise and removed immediately after. Heart rate was collected prior to exercise, after onset of occlusion, immediately after exercise, and one-minute after removal of occlusion. Ultrasonography was performed prior to, and at least 30 s after, occlusion. RESULTS: BTFBFR caused greater reductions in arterial distance (14.28%, p = 0.010) and arterial area (28.43%, p = 0.020) than TRA(BFR). BTFBFR was able to significantly reduce arterial flow below pre-occlusion values, while TRA(BFR) did not. Both conditions caused significant elevations in heart rate following occlusion (TRA(BFR): +4.67 bpm, p = 0.046 and BTFBFR: +6.07 bpm, p = 0.034), immediately post-exercise (TRA(BFR): +56.93 bpm, p < 0.001 and BTFBFR: +52.79 bpm, p < 0.001) and one-minute post-exercise (TRA(BFR): +15.71, p = 0.003 and BTFBFR: +14.57, p < 0.001). Only BTFBFR caused significant reductions in performance as measured by average power per repetition. CONCLUSIONS: BTFBFR causes a more exaggerated decrease in arterial blood flow as well as muscular power when compared to traditional TRA(BFR) at 50% of LOP.

Description
Keywords
occlusion, BFR, tissue flossing, hypoxia, resistance exercise, PRESSOR REFLEX, OCCLUSION, INCREASES, WALKING, STRESS, Environmental Sciences, Public, Environmental & Occupational Health
Citation
Winchester, L. J., Blake, M. T., Fleming, A. R., Aguiar, E. J., Fedewa, M. V., Esco, M. R., & Earley, R. L. (2022). Hemodynamic Responses to Resistance Exercise with Blood Flow Restriction Using a Practical Method Versus a Traditional Cuff-Inflation System. In International Journal of Environmental Research and Public Health (Vol. 19, Issue 18, p. 11548). MDPI AG. https://doi.org/10.3390/ijerph191811548