The preparation for a swing consists of lifting the racket above the shoulders in a curved c shape motion.
Next, to swing the racket you will utilize the right pectoralis major, serratus anterior, and biceps brachii.
This is accomplished by the
supraspinatus and teres minor
12 major muscles used during Tennis Forehand (right-handed player)
To ensure you hit the ball over the net a small leap is required.
To complete this you must use the left and right soleus, gastronomicus, rectus femoris, and gluteus maximus.
When hitting the ball you first rotate your right hip towards the ball with your feet on the ground.
This is done by using your right gluteus medius, external obliques, and rectus abdominis.