Greater eccentric exercise-induced muscle damage by large versus small range of motion with the same end-point

Autor(es)

Fochi, A. G. ; Damas, F. ; Berton, R. ; Alvarez, I ; Miquelini, M. ; Salvini, T. F. ; Libardi, C. A.

• Tipo de documento: Artigo Científico
• Fonte: BIOLOGY OF SPORT; v. 33, n. 3, p. 285-289, 2016.
• Citações Web of Science: 0

Resumo

Several factors can affect the magnitude of eccentric exercise (ECC)-induced muscle damage, but little is known regarding the effect of the range of motion (ROM) in ECC-induced muscle damage. The purpose of this study was to investigate whether elbow flexor ECC with 120 degrees of ROM (from 60 degrees of elbow flexion until elbow full extension - 180 degrees {[}120ROM]) induces a greater magnitude of muscle damage compared with a protocol with 60 degrees of ROM (120-180 degrees of elbow flexion {[}60ROM]). Twelve healthy young men (age: 22 +/- 3.1 years; height: 1.75 +/- 0.05 m; body mass: 75.6 +/- 13.6 kg) performed the ECC with 120ROM and 60ROM using different arms in a random order separated by 2 weeks and were tested before and 24, 48, 72 and 96 h after ECC for maximal voluntary isometric contraction torque (MVC-ISO), ROM and muscle soreness. The 120ROM protocol showed greater changes and effect sizes (ES) for MVC-ISO (-35%, ES: 1.97), ROM (-11.5 degrees, ES: 1.27) and muscle soreness (19 mm, ES: 1.18) compared with the 60ROM protocol (-23%, ES: 0.93; -12%, ES: 0.56; 17 degrees, ES: 0.63; 8 mm, ES: 1.07, respectively). In conclusion, ECC of the elbow flexors with 120 degrees of ROM promotes a greater magnitude of muscle damage compared with a protocol with 60 degrees of ROM, even when both protocols are performed at long muscle lengths. (AU)

• Processo FAPESP: 12/24499-1 - O papel da magnitude de dano muscular nas respostas hipertróficas
• Beneficiário: Felipe Romano Damas Nogueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/22122-5 - Estudo das adaptações biomecânicas, sensoriais, cardiorespiratórias e da qualidade de vida associadas à intervenção fisioterapêutica na síndrome fibromiálgica
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• Processo FAPESP: 14/19594-0 - O papel do dano muscular na modulação da síntese protéica muscular
• Beneficiário: Felipe Romano Damas Nogueira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 13/21218-4 - O papel da magnitude de dano muscular nas respostas hipertróficas
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