The key muscles for better sprint running performance and resistance training method for them

本研究旨在确定提高短跑成绩的关键肌肉以及训练肌肉的有效练习。结果表明，臀大肌和腿后肌的体积占下肢总肌肉体积的比例与短跑成绩呈显著相关。在深蹲练习中，在没有额外负荷的情况下进行爆发性训练时，臀大肌的活动比在有杠铃负荷的情况下进行稳定慢速训练时更大。这些结果表明，臀大肌和腘绳肌是关键肌肉，即，在训练中，爆发性跳跃练习优于匀速杠铃蹲起练习，有利于提高短跑成绩。

The present study aimed to determine the key muscles for better sprint running performance and the effective exercises for training the muscles. The results showed that the volumes of the gluteus maximus and hamstring muscles relative to the total lower limb muscle volume were significantly correlated to the sprint running performance. In a squat exercise, the greater activity of the gluteus maximus muscles was elicited when performed explosively without extra-load than at a steady-slow speed with barbell load. These results indicated that the gluteus maximus and hamstring muscles are the key muscles, i.e., to be trained, for better sprint running performance and that the explosive jumping exercise is better training than the steady speed barbell squatting exercise.