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- Title
Reliability and Validity of a Portable Traction Dynamometer in Knee-Strength Extension Tests: An Isometric Strength Assessment in Recreationally Active Men.
- Authors
Garcia, Danielle; de Sousa Neto, Ivo Vieira; de Souza Monteiro, Yuri; Magalhães, Denis Pinheiro; Ferreira, Gleison Miguel Lissemerki; Grisa, Roberto; Prestes, Jonato; Rosa, Bruno Viana; Abrahin, Odilon; Martins, Tatiane Meire; Vidal, Samuel Estevam; de Moura Andrade, Rosimeire; Celes, Rodrigo Souza; Rolnick, Nicholas; da Cunha Nascimento, Dahan
- Abstract
Background: the study determined the validity and reliability of measurements obtained using the portable traction dynamometer (PTD) (E-Lastic, E-Sports Solutions, Brazil) and the reproducibility between evaluators (precision) in the evaluation of the isometric muscle strength of the knee extensors of healthy male adults, compared to measurements obtained with the "gold standard" computerized dynamometer (CD) (Biodex System 3, Nova York, NY, USA). Methods: we evaluated sixteen recreationally active men (29.50 ± 7.26 years). The test–retest reliability of both equipment to determine quadriceps strength, agreement analysis, and the minimal important difference were verified. Results: excellent test–retest interrater reliability was observed for absolute and relative measurements, with a low absolute error for both sets of equipment and excellent validity of the PTD against the CD, as verified by linear regression and Pearson's correlation coefficient. Conclusions: PTD is a valid and reliable instrument for assessing the isometric strength of knee extensors, with results similar to the isometric CD "gold standard".
- Subjects
KNEE physiology; EXERCISE tests; PILOT projects; RESEARCH evaluation; MUSCLE contraction; STATISTICAL reliability; CONFIDENCE intervals; ANTHROPOMETRY; RECREATION; MEN; REGRESSION analysis; PEARSON correlation (Statistics); T-test (Statistics); DESCRIPTIVE statistics; CROSSOVER trials; DATA analysis software
- Publication
Healthcare (2227-9032), 2023, Vol 11, Issue 10, p1466
- ISSN
2227-9032
- Publication type
Article
- DOI
10.3390/healthcare11101466