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Muscle damage responses to resistance exercise performed with high-load versus low-load associated with partial blood flow restriction in young women.
- Source :
-
European Journal of Sport Science . Feb2020, Vol. 20 Issue 1, p125-134. 10p. 1 Diagram, 1 Chart, 2 Graphs. - Publication Year :
- 2020
-
Abstract
- The aim of this study was to compare if an acute exercise session of high-load resistance training (HL-RT, e.g. 70% of 1 repetition-maximum, 1 RM) induces a higher magnitude of muscle damage compared with a RT protocol with low-loads (e.g. 20% 1 RM) associated with partial blood flow restriction (LL-BFR), and investigate the recovery in the days after the protocols. We used an unilateral crossover research design in which 10 young women (22(2) y; 162(5) cm; 66(11) kg) performed HL-RT and LL-BFR in a randomized, counterbalanced manner with a minimum interval of 2 weeks between protocols. Indirect muscle damage markers were evaluated before and once a day for 4 days into recovery. Main results showed decreases of 8–12% at 24–48 h in maximal voluntary isometric and concentric contraction torques (P < 0.03), and changes in muscle architecture markers (P < 0.03) for HL-RT and LL-BFR, with no differences between protocols (P > 0.05). Moreover, delayed onset muscle soreness increased only after LL-BFR (P < 0.001). We conclude that an acute bout of low volume HL-RT or LL-BFR to failure resulted in edema-induced muscle swelling, but do not induce major or long-lasting decrements in muscle function and the level of soreness promoted from LL-BFR was mild. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17461391
- Volume :
- 20
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- European Journal of Sport Science
- Publication Type :
- Academic Journal
- Accession number :
- 141659749
- Full Text :
- https://doi.org/10.1080/17461391.2019.1614680