值得去注意和訓練的肌肉，有膝蓋問題的人，一定要多感受一些
Functions of the vastus medialis muscle (preview) - Human 3D Anatomy | Kenhub
VMO Strengthening Exercises - Ask Doctor Jo
A skeletal muscle attaches to bone (or sometimes other muscles or tissues) at two or more places. If the place is a bone that remains immobile for an action, the attachment is called an origin. If the place is on the bone that moves during the action, the attachment is called an insertion.
