The demand for personal training (PT), through which high exercise effects can be achieved within shortterm, has recently increased. PT can achieve an exercise amount improvement effect, only if accurate postures are maintained upon performing PT, and exercise with inaccurate postures can cause injuries. However, research is insufficient on exercise amount comparisons and judging exercise accuracy on PT. This study proposes an exercise accuracy measurement algorithm and compares differences in exercise amounts according to exercise postures through experiments using a respiratory gas analyzer. The exercise accuracy measurement algorithm acquires Euler angles from major body parts operated upon exercise through a motion device, based on which the joint angles are calculated. By comparing the calculated joint angles with each reference angle in each exercise step, the status of exercise accuracy is judged. The calculated results of exercise accuracy on squats, lunges, and push-ups showed 0.02% difference in comparison with actually measured results through a goniometer. As a result of the exercise amount comparison experiment according to accurate posture through a respiratory gas analyzer, the exercise amount was higher by 45.19% on average in accurate postures. Through this, it was confirmed that maintaining accurate postures contributes to exercise amount improvement.
목차
Abstract 1. Introduction 2. Exercise Posture Accuracy measurement Algorithm 2.1 Motion Data Acquisition (Euler Angle Extraction) 2.2 Joint Bending Angles Calculation 2.3 Exercise Posture Accuracy Calculation 3. Experiment and Evaluation 3.1 Comparison with Actually Measured Exercise Accuracy 3.2 Consumption according to Exercise Posture Accuracy 4. Conclusion Acknowledgement References