This exercise is aimed at developing the explosive strength of the muscles of the upper body and improving coordination of movements in the shoulder joints. The exercise is performed with the help of a partner. Starting position - lying on his back, holding the ball with his hands behind his head. From this position, it is necessary to throw the ball to the partner, rising to a sitting position. The partner throws the ball back, it must be caught, return to the supine position and repeat the throw.
Holding for a second in the previous position, return to the starting position. This should be done in one sharp movement, but so that the legs do not touch the floor and are always on weight.
Do not be afraid to take a high pace, just do not lower your feet to the floor at the end point and try to throw them as far behind your head as possible.