Open AccessAccuracy and Reliability of Inertial Devices for Load Assessment During Flywheel Workout
Author(s) -
José Pino-Ortega,
Alejandro Hernández-Belmonte,
Alejandro Bastida-Castillo,
Carlos D. Gómez-Carmona,
Daniel Rojas-Valverde
Publication year - 2021
Publication title -
mhsalud
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.151
H-Index - 2
ISSN - 1659-097X
DOI - 10.15359/mhs.19-1.1
Subject(s) - flywheel , intraclass correlation , inertial measurement unit , reliability (semiconductor) , pearson product moment correlation coefficient , coefficient of variation , repeatability , correlation coefficient , simulation , mathematics , computer science , statistics , engineering , reproducibility , physics , artificial intelligence , automotive engineering , power (physics) , quantum mechanics
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.