ABSTRACT
This study aimed to correlate the vertical acceleration obtained by an Inertial Measurement Unit (IMU) and the biomechanical parameters obtained by a force plate (FP). Eight athletes (six males and two females; Aged 26 ± 3.61; body mass: 73.19 ± 8.96Kg; and height: 1.77 ± 0.08m) with international representation by their countries were included in the study. An IMU developed collecting at 275Hz and a Bertec FP collecting at 1000Hz were used to obtain the selected biomechanical parameters. Statistical Pearson and Spearman correlation tests were applied. Several biomechanical parameters obtained a higher correlation with the vertical acceleration obtained by IMU. Through the linear regression models, the vertical acceleration root mean square (RMS) obtained a higher explanation with a R2 = 59.2%. The proposed model showed that higher vertical acceleration RMS is associated with high force values and high-rate force development, and small temporal values in negative and positive impulse and rate force development.
