n.屈肌
As flexor control is stimulated, the child will actively lift the pelvis. 當(dāng)屈肌的控制被激發(fā)以后，兒童就會(huì)積極地抬起骨盆。
If there is any need to strengthen the muscles, it is the hip flexor. 如果有任何肌肉需要強(qiáng)化，那就是臀部屈肌。
