Effects of fast-velocity eccentric resistance training on early and late rate of force development

Autor(es)

Oliveira, Anderson Souza ^{[1, 2]} ; Corvino, Rogerio Bulhoes ^{[1, 3]} ; Caputo, Fabrizio ^{[1, 3]} ; Aagaard, Per ^[4] ; Denadai, Benedito Sergio ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Human Performance Lab, Rio Claro - Brazil

^[2] Aalborg Univ, Dept Hlth Sci & Technol, Aalborg - Denmark

^[3] Santa Catarina State Univ, Ctr Hlth & Sport Sci, Florianopolis, SC - Brazil

^[4] Univ Southern Denmark, Inst Sports Sci & Clin Biomech, SDU Muscle Res Cluster SMRC, Odense - Denmark

• Tipo de documento: Artigo Científico
• Fonte: European Journal of Sport Science; v. 16, n. 2, p. 199-205, 2016.
• Citações Web of Science: 10

Resumo

This study examined whether short-term maximal resistance training employing fast-velocity eccentric knee extensor actions would induce improvements in maximal isometric torque and rate of force development (RFD) at early (<100 ms) and late phases (>100 ms) of rising torque. Twenty healthy men were assigned to two experimental groups: eccentric resistance training (TG) or control (CG). Participants on the TG trained three days a week for a total of eight weeks. Training consisted of maximal unilateral eccentric knee extensors actions performed at 180 degrees s(-1). Maximal isometric knee extensor torque (MVC) and incremental RFD in successive 50 ms time-windows from the onset contraction were analysed in absolute terms (RFDINC) or when normalised relative to MVC (RFDREL). After eight weeks, TG demonstrated increases in MVC (28%), RFDINC (0-50 ms: 30%; 50-100 ms: 31%) and RFDREL (0-50 ms: 29%; 50-100 ms: 32%). Moreover, no changes in the late phase of incremental RFD were observed in TG. No changes were found in the CG. In summary, we have demonstrated, in active individuals, that a short period of resistance training performed with eccentric fast-velocity isokinetic muscle contractions is able to enhance RFDINC and RFDREL obtained at the early phase of rising joint torque. (AU)

• Processo FAPESP: 05/04486-9 - Influencia do estado de treinamento sobre os efeitos do exercicio aerobio previo na forca muscular: analise transversal e longitudinal.
• Beneficiário: Benedito Sérgio Denadai
• Modalidade de apoio: Auxílio à Pesquisa - Regular