Reliability of isokinetic evaluation in passive mode for knee flexors and extensors in healthy children
Braz. j. phys. ther. (Impr.)
;
17(2): 112-120, abr. 2013. tab
Artigo
em Inglês
| LILACS
| ID: lil-675705
ABSTRACT
BACKGROUND:
The isokinetic dynamometer has been considered the gold-standard measurement of muscle performance. However, the reliability for the passive mode in children has not been reported to date.OBJECTIVES:
The purpose was to evaluate the reliability of the isokinetic dynamometer in passive mode in children.METHOD:
Twenty-one healthy children (ten girls, eleven boys), aged 5 to 12 years (age 8.5±2.2 years), were evaluated using an isokinetic dynamometer. Each participant was tested twice with a one-week interval and performed five consecutive cycles of knee extension and flexion. The test was performed at 60º/s in the concentric passive mode and the children performed maximal contractions. The measured variables were peak torque, average peak torque, total work, and average power, time to peak torque and angle of peak torque for dominant and non-dominant lower limbs. Reliabilities were determined using intraclass correlation coefficient (ICC3,1), standard error of measurement (SEM and SEM%), and coefficient of variation (CV).RESULTS:
We found good reliability in both lower limbs for peak torque, average peak torque, total work and average power of knee flexors and extensors, with ICC3,1 values greater than 0.80; SEM ranging from 6.7 to 79.2; SEM% ranging from 10.4% to 16.8%; CV lower than 15%. Bland-Altman analysis showed that the bias was low than 10% and limits of agreement (LOAs) ranging from 33.9% to 59.2%, and -28.8% and -52.8%, showing that measures tended to disagree. However, time to peak torque (ICC3,1<0.68; SEM > 0.34; SEM%>37.4%; CV>41.7%; bias >24.0%; LOA>101.0%) and angle of peak torque (ICC3,1<0.76; SEM>9.3; SEM%>27.6%; CV>15.3%; bias>11.0%; LOA>61.0%) were not reliable.CONCLUSIONS:
The findings indicate that isokinetic evaluation in passive mode for knee extensors ...
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Músculo Esquelético
/
Articulação do Joelho
Limite:
Criança
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Braz. j. phys. ther. (Impr.)
Assunto da revista:
MEDICINA FISICA E REABILITACAO
Ano de publicação:
2013
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Federal de São Carlos/BR
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