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Brazilian Jiu-Jitsu fighters present greatest rapid and maximal strength imbalances at extreme elbow angles.
Follmer, Bruno; Ruas, Cassio Victora; Dellagrana, Rodolfo Andre; Pereira De Lima, Luis Antonio; Pinto, Ronei Silveira; Diefenthaeler, Fernando.
Afiliação
  • Follmer B; Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil; School of Exercise Science, Physical, and Health Education, University of Victoria, Victoria, BC, Canada; Rehabilitation Neuroscience Laboratory, University of Victoria, Victoria, BC, C
  • Ruas CV; Centre for Exercise and Sports Science Research, School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia. Electronic address: c.victoraruas@ecu.edu.au.
  • Dellagrana RA; Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil. Electronic address: radellagrana@gmail.com.
  • Pereira De Lima LA; Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil. Electronic address: luisdelima.mail@gmail.com.
  • Pinto RS; Exercise Research Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil. Electronic address: ronei.pinto@ufrgs.br.
  • Diefenthaeler F; Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil. Electronic address: fdiefenthaeler@gmail.com.
J Bodyw Mov Ther ; 25: 126-132, 2021 Jan.
Article em En | MEDLINE | ID: mdl-33714483
BACKGROUND: The performance of Brazilian jiu-jitsu (BJJ) fighters is dependent on rapid and maximal elbow strength actions. Appropriate strength balance between elbow flexors (F) and extensors (E) across the full joint range of motion may be required to decrease risk of injuries. AIM: To compare rapid and maximal elbow F/E strength balance through full range of motion in BJJ fighters. MATERIALS AND METHODS: Twenty-three male BJJ fighters (27.9 ± 4.6 years, 82.9 ± 10.9 kg, 174.5 ± 6.8 cm, and 15.3 ± 6.8% body fat) with 8.2 ± 6.5 years of practice volunteered to participate. Participants were tested for rate of torque development (RTD) and peak torque (PT) of elbow F and E at six angles (45°, 60°, 75°, 90°, 105°, and 120°; 0° = full extension). Rapid (F RTD/E RTD) and maximal (F PT/E PT) angle-specific torque (AST) ratios were calculated. RESULTS: Rapid AST ratio at 45° (0.66 ± 0.18) and maximal AST ratio at 45° (0.91 ± 0.16) and 120° (0.88 ± 0.20) were significantly less than all other AST ratios at mid-point angles of elbow range of motion (p < 0.05). Individual data demonstrates that both beginners and advanced BJJ fighters present overall similar rapid and maximal F/E AST imbalances. CONCLUSION: BJJ fighters present greater rapid and maximal strength imbalances at extreme-compared to mid-point angles of range of motion. Results may benefit coaches to develop strength exercises focusing on these specific angles to potentially reduce the risk of elbow injury and improve performance of BJJ fighters.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artes Marciais / Articulação do Cotovelo Limite: Humans / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Bodyw Mov Ther Assunto da revista: MEDICINA FISICA / TERAPEUTICA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Artes Marciais / Articulação do Cotovelo Limite: Humans / Male País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Bodyw Mov Ther Assunto da revista: MEDICINA FISICA / TERAPEUTICA Ano de publicação: 2021 Tipo de documento: Article País de publicação: Estados Unidos