Test–Retest Reliability of the Functional Electromechanical Dynamometer for Squat Exercise
Metadata
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Del Cuerpo Rodríguez, Indya; Jerez Mayorga, Daniel Alejandro; Delgado Floody, Pedro; Morenas Aguilar, María Dolores; Chirosa Ríos, Luis JavierEditorial
MDPI
Materia
Reproducibility Muscle strength Dynamometer Isokinetic
Date
2023-01-11Referencia bibliográfica
del-Cuerpo, I... [et al.]. Test–Retest Reliability of the Functional Electromechanical Dynamometer for Squat Exercise. Int. J. Environ. Res. Public Health 2023, 20, 1289. [https://doi.org/10.3390/ijerph20021289]
Sponsorship
University de La Frontera, Chile; Spanish Government FPU19/02030Abstract
Background: the main objective of this study was to evaluate the test-retest reliability of
two different functional electromechanical dynamometry (FEMD)-controlled squat training protocols.
Methods: twenty-eight healthy young adults volunteered to participate in this study. They attended
the laboratory on four different days and performed four sessions: two of three sets of 12 repetitions
at 75% 1RM and two of three sets of 30 repetitions at 50% 1RM. The range of movement (ROM),
mean dynamic strength (MDS), peak dynamic strength (PDS), mean velocity (MV), peak velocity
(PV), mean potency (MP), peak potency (PP), work (W), and impulse (I) were recorded. To evaluate
the reliability of FEMD, the intraclass correlation coefficient (ICC), standard error of measurement
(SEM), and coefficient of variation (CV) were obtained. Results: reliability was very high for ROM
(CV: 3.72%, ICC: 0.95), MDS (CV: 1.09%, ICC: 1.00), PDS (CV: 1.97%, ICC: 1.00), andW(CV: 4.69%,
ICC: 1.00) conditions at 50% 1RM and for ROM (CV: 3.90%, ICC: 0.95), MDS (CV: 0.52, ICC: 1.00),
PDS (CV: 1.49%, ICC: 0.98), and W (CV: 4.14%, ICC: 1.00) conditions at 75% 1RM and high for the
rest of variables at 50 and 75% 1RM. Conclusions: this study demonstrates that FEMD is a reliable
instrument to measure ROM, MDS, PDS, MV, PV, PV, MP, MP, W, and I during both squat protocols
(50 and 75% 1RM) in healthy young adults.