Comparison of Measured and Observed Exercise Fidelity during a Neuromuscular Training Warm-Up

Neuromuscular training (NMT) warm-up programs effectively prevent injuries in youth, but monitoring exercise fidelity is challenging. The purpose of this study was to compare the as measured via an inertial measurement unit (IMU) with direct observations selected exercises. Youth basketball and soccer players performed single leg jumps, squat Nordic hamstring curls, and/or balance exercises part NMT warm-up. An IMU placed on lower back each participant video recorded. A physiotherapist evaluated volume aspect (i.e., performing prescribed number repetitions) using recordings a checklist. Algorithms were developed count repetitions from signal. algorithms compared physiotherapist’s evaluation, accuracy, precision, recall calculated for exercise. total 91 (39 female, 52 male) athletes at least one four There greater than 88% all jump algorithm classified sets correctly. IMUs may be used quantify that involve both impact during landing changes orientation rotations.