Telemetry Data Analysis on sEMG Major Muscle Groups in Three-step Leap over Stumps of 400m Obstacle

Abstract

Objective: The purpose of the research is to study the sEMG characteristics of associated major muscle groups (agonist muscles) in three-step leap over stumps of 400m obstacle and the relationship between them and muscle performance. Methods: This research tests and analyzes the original electromyography, iEMG and iEMG% of seven male cadets who did quite well in 400m obstacle test by using the surface electromyography telemetry and anatomical analysis of the action, combining with sEMG synchronal video collecting data analysis. Results: The order of muscle power that functions in the right lower limb muscle groups and rectus abdominis is the following: tibialis anterior muscle and quadriceps generate power first, followed by rectus abdominis muscles, gastrocnemius, hamstrings, and gluteus maximus in sequence. The iEMG and iEMG% order from large to small is: gastrocnemius, tibialis anterior, quadriceps, hamstrings, rectus abdominis muscle, and gluteus maximus. Conclusion: The completion of three-step leap over stumps mainly depends on the muscle power of lower limbs and the arm strength of forward movement. Actively stretching and extending ankle and knee joints ensure the major muscle power to successfully push off the ground. In the movement of arms, pulling the thighs forward and tightening the knees also generate essential muscle power in the action. Therefore, during the training exercise, the muscle strength of triceps surae of the lower limbs, group before the calf muscles, quadriceps, and iliopsoas muscles should be greatly improved.