Recovery of gait after quadriceps muscle fatigue

Autor(es)

Barbieri, Fabio Augusto ^{[1, 2]} ; Beretta, Stephannie Spiandor ^[1] ; Pereira, Vinicius A. I. ^{[1, 2]} ; Simieli, Lucas ^[1] ; Orcioli-Silva, Diego ^[1] ; Rocha dos Santos, Paulo Cezar ^[1] ; van Dieen, Jaap H. ^[3] ; Bucken Gobbi, Lilian Teresa ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Posture & Gait Studies Lab, Rio Claro - Brazil

^[2] Univ Estadual Paulista, Lab Informat Vis & Act, Bauru - Brazil

^[3] Vrije Univ Amsterdam, Fac Human Movement Sci, MOVE Res Inst Amsterdam, Amsterdam - Netherlands

• Tipo de documento: Artigo Científico
• Fonte: GAIT & POSTURE; v. 43, p. 270-274, JAN 2016.
• Citações Web of Science: 2

Resumo

The aim of this study was to investigate the effect of recovery time after quadriceps muscle fatigue on gait in young adults. Forty young adults (20-40 years old) performed three 8-m gait trials at preferred velocity before and after muscle fatigue, and after 5, 10 and 20 min of passive rest. In addition, at each time point, two maximal isometric voluntary contractions were preformed. Muscle fatigue was induced by repeated sit-to-stand transfers until task failure. Spatio-temporal, kinetic and muscle activity parameters, measured in the central stride of each trial, were analyzed. Data were compared between before and after the muscle fatigue protocol and after the recovery periods by one-way repeated measures ANOVA. The voluntary force was decreased after the fatigue protocol (p < 0.001) and after 5, 10 and 20 min of recovery compared to before the fatigue protocol. Step width (p < 0.001) and RMS of biceps femoris (p < 0.05) were increased immediately after the fatigue protocol and remained increased after the recovery periods. In addition, stride duration was decreased immediately after the fatigue protocol compared to before and to after 10 and 20 min of rest (p < 0.001). The anterior-posterior propulsive impulse was also decreased after the fatigue protocol (p < 0.001) and remained low after 5, 10 and 20 min of rest. We conclude that 20 min is not enough to see full recovery of gait after exhaustive quadriceps muscle fatigue. (C) 2015 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 13/12774-0 - Efeito da recuperação da fadiga muscular no andar de adultos jovens
• Beneficiário: Stephannie Spiandor Beretta
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica