Determine Footwork and Intensity by Using Wireless Accelerometer and Gyro

The purpose of this study was to investigate the features of different footwork (walk, run and jump in different intensities) by accelerometer and gyro. The features of footwork are determined by observing the characteristic of digital signal. Fifteen healthy male college students were recruited in this study. A self-made wireless inertial measurement unit (200 Hz) was attached to the participant’s left foot to observe the features of different footwork. Oneway repeated measures ANOVA was used to determine the difference among axes. Paired t-test was used to determine the difference between intensities. The significant level was set at α = .05. The range of acceleration change in anteroposterior axis is significantly larger than other two axes. The range of angular velocity change in frontal axis is significantly larger than other two axes. We can observe that each footwork has its own special pattern in angular velocity (frontal axis). Therefore, combining accelerometer and gyro is capable of determining different footwork (walk, run and jump). And the intensity can be determined by the range of acceleration change in anteroposterior axis.