A new reliable device to assess trunk extensors strength.
Acta Bioeng Biomech
; 24(1): 49-57, 2022.
Article
em En
| MEDLINE
| ID: mdl-38314488
ABSTRACT
PURPOSE:
This study aimed to examine the reliability of trunk extensor strength assessment with a functional electromechanical dynamometer (FEMD).METHODS:
Thirty-one men performed strength assessment at different velocities (V) (V1 = 0.15 mâ s-1 , V2 = 0.30 mâ s-1,V3 = 0.45 mâ s-1) and range of movement (R) (R1 = 25% cm; R2 = 50% cm), and isometric contraction at 90°. Reliability was obtained through the intraclass correlation coefficient (ICC), typical error (TE), and coefficient of variation (CV).RESULTS:
The absolute reliability provided stable repeatability of the average eccentric strength in the V1R1 condition (CV = 9.52%) and the maximum eccentric strength in V1R1 (CV = 9.63%) and V2R2 (CV = 9.66%). The relative reliability of the trunk extensor's average strength was good (ICC = 0.77-0.83) for concentric and good (ICC = 0.78-0.85) and moderate (ICC = 0.67-0.74) for eccentric contraction. Also, good (ICC = 0.77-0.81) and moderate (ICC = 0.55-0.74) reliability of the maximum strength were obtained for concentric and eccentric contraction. The most reliable manifestation to evaluate the concentric (CV = 11.33%) and eccentric (CV = 9.52%) strength was the average strength in the V1R1 condition and the maximum strength (CV = 10.29%) to isometric assessment. The average concentric strength in the V2R2 condition (r = 0.69) and the maximum eccentric strength in the V1R1 condition (r = 0.65) were the best related to the maximum isometric strength.CONCLUSIONS:
FEMD is a highly reliable device to evaluate trunk extensors strength.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Acta Bioeng Biomech
Assunto da revista:
ENGENHARIA BIOMEDICA
/
FISIOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Espanha