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MHSalud
versión On-line ISSN 1659-097X
Resumen
PINO-ORTEGA, José et al. Accuracy and reliability of inertial devices for load assessment during flywheel workout. MHSalud [online]. 2022, vol.19, n.1, pp.1-13. ISSN 1659-097X. http://dx.doi.org/10.15359/mhs.19-1.1.
There is currently an increase in inertial flywheel application in strength training; thus, it must be monitored by an accurate and reliable device. The present study tested: (1) the accuracy of an inertial measurement device (IMU) to correctly measure angular velocity and (2) its inter-unit reliability for the measurement of external load. The analysis was performed using Pearson Correlation and Intraclass Correlation Coefficient (ICC). The IMU accuracy was tested using Bland-Altman and the reliability with the coefficient of variation (CV). Ten elite-level football players performed ten series of 5 repetitions in a one-hand standing row exercise (5 series with each arm). A nearly perfect accuracy (ICC=.999) and a very good between-device reliability (Bias=-.010; CV=.017%) was found. IMU is a reliable and valid device to assess angular velocity in inertial flywheel workout objectively.
Palabras clave : technology; weightlifting; exercise; physical fitness; sports.