Effectiveness analysis of muscle fatigue in rehabilitation based on surface electromyogram / 生物医学工程学杂志

ABSTRACT

Muscle fatigue has widespread application in the field of rehabilitation medicine. The paper studies the muscle fatigue using surface electromyogram (sEMG) in the background of rehabilitation training system. The sEMG and ventilatory threshold of vastus lateralis, rectus femoris and erector spinae are collected synchronously and the electromyogram fatigue threshold (EMG ) of different sEMG was analyzed by increasing load cycling experiments of 10 healthy subjects. This paper also analyzes the effect of isotonic and isometric contraction on EMG . Results showed that the appeared time of EMG was earlier than that of ventilatory threshold in the incremental load cycling. While the differences were subtle and EMG was verified to be effective. EMG has been proven effective for different muscle contraction by comparing the EMG of vastus lateralis and erector spinae. EMG could be used to keep muscle injuries from overtraining in the process of rehabilitation. Therefore, EMG has a great significance for femoral shaft fractures's fatigue monitoring in rehabilitation training.