Body composition and handgrip strength in Brazilian Jiu-Jitsu: a systematic review
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Data for "Body composition and handgrip strength in Brazilian Jiu-Jitsu: a systematic review"
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Methods: Articles were included if they met the following criteria: they were observational or comparative studies evaluating the body composition and the maximal isometric handgrip strength in BJJ athletes through dynamometry. Studies evaluating BJJ athletes' somatotype were considered. Articles were excluded if they met the following criteria: they were evaluating athletes from grappling sports other than BJJ, athletes under 18 years of age, and studies that did not include data regarding the two main variables (body composition and maximal isometric handgrip strength). Other systematic reviews or meta-analyses were excluded. An author with expertise in systematic reviews and meta-analysis conducted a literature search in the following databases: MEDLINE via PubMed; Embase, Web of Science, Scopus, PEDro, CDSR, CCRCT, LILACS, Educational Resources, Academic Research Premier (EBSCO), and the Virtual Bibliography on Adolescent Health (ADOLEC). The search strategies included terms related to the exposure and outcome variables. Terms were adopted according to MEDLINE guidelines with no language restrictions. This systematic review adheres to the standards set in the Meta-Analysis of Observational Studies in Epidemiology (MOOSE), and the Preferred Reported Items for Systematic Reviews and Meta-Analysis (PRISMA 2020). The protocol was registered in PROSPERO with the following ID Registration Number: CRD42022311799. Two reviewers worked independently and in duplicate to assess the methodological quality of each study using the Newcastle-Ottawa Scale and the Appraisal tool for Cross-Sectional Studies (AXIS). Data were extracted independently and in duplicate for all variables. Conflicts between reviewers were resolved by consensus.