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Title: How to Improve the Reactive Strength Index among Male Athletes? A Systematic Review with Meta-Analysis
Authors: Rebelo, André
Pereira, João R. 
Martinho, Diogo V. 
Duarte, João P. 
Silva, Manuel João Coelho e 
Santos, João Valente dos 
Keywords: strength; power; reactive strength; players; plyometric training; resistance training
Issue Date: 22-Mar-2022
Serial title, monograph or event: Healthcare (Switzerland)
Volume: 10
Issue: 4
Abstract: The reactive strength index (RSI) describes the individual's capability to quickly change from an eccentric muscular contraction to a concentric one and can be used to monitor, assess, and reduce the risk of athlete's injury. The purpose of this review is to compare the effectiveness of different training programs on RSI. Electronic searches were conducted in MEDLINE, PubMed, Scopus, SPORTDiscus, and Web of Science from database inception to 11 February 2022. This meta-analysis was conducted in accordance with the recommendations of the preferred reporting items for systematic reviews and meta-analyses (PRISMA). The search returned 5890 records, in which 39 studies were included in the systematic review and 30 studies were included in the meta-analysis. Results from the randomized studies with the control group revealed that plyometric training improved RSI in adult athletes (0.84, 95% CI 0.37 to 1.32) and youth athletes (0.30, 95% CI 0.13 to 0.47). Evidence withdrawn from randomized studies without a control group revealed that resistance training also improved the RSI (0.44, 95% CI 0.08 to 0.79) in youth athletes but not in adults. Interventions with plyometric training routines have a relatively large, statistically significant overall effect in both adult and youth athletes. This supports the implementation of this type of interventions in early ages to better cope with the physical demands of the various sports. The impact of resistance training is very low in adult athletes, as these should seek to have a more power-type training to see improvements on the RSI. More interventions with sprint and combined training are needed.
ISSN: 2227-9032
DOI: 10.3390/healthcare10040593
Rights: openAccess
Appears in Collections:I&D CIDAF - Artigos em Revistas Internacionais

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