Electromyographic activity of vastus medialis oblique muscle in step-up and step-down exercises
Braz. j. morphol. sci
;
14(1): 19-23, jan.-jun. 1997. tab
Artigo
em Português, Inglês
| LILACS
| ID: lil-268982
ABSTRACT
The purpose of this study was to determine the electromyographic activity of the vastus medialis oblique muscle (VMO) during step-up and exercises. The electrical activity of the VMO muscle was measured on 15 healthy subjects, aged 19 to 33 years, (X=24,4,SD=4,1) With no history of knee pathology, using a 8 channels Nicolet Electromyograph and Beckman surface mini electrodes. The signal was recorded in root mean square (RMS), expressed in microvolts. The statistical analyses (ANOVA and Turkey test) were calculated at 5 per cent of significance. The results showed that the electromyographic activity of the VMO muscle was significantly greater during the step-up (concentric work) than in the step-down exercise (eccentric work). These findings, within the experimental conditions used, suggest that the step-up and step-down exercises could recover the VMO muscle function, initially with eccentric work and afterwards, with concentric.
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Índice:
LILACS (Américas)
Assunto principal:
Exercício Físico
/
Joelho
/
Músculos
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
/
Português
Revista:
Braz. j. morphol. sci
Assunto da revista:
Anatomia
Ano de publicação:
1997
Tipo de documento:
Artigo
País de afiliação:
Brasil
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