Elevation phase

Shooter leaves the floor and rises into the air, then brings the ball up while keeping it close to the body until the ball is above the head at the top of the jump. During this phase they elevate the ball until a few cm higher than the head. In the end position shoulder and elbow are in 90 degrees flexion and wrist
in full extension. 

Shoulder girdle- Scapulothoracic elevation by the trapezius upper/middle fibers,  rhomboids, and levator scapulae

Shoulder joint-  The right shoulder joint is horizontally adducted and internal rotation by the pectoralis major lower fibers, sub scapularis, deltoid anterior fibers, lattisimus dorsi, and teres major.The Deltoid anterior fibers are horizontally adducted isometrically. The Left shoulder joint is slightly horizontally abducted.

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Elbow and Radioulnar joints- Flexion of elbow. Extension of the wrist. The right forearm is pronated using the pronator teres and quadratus.. Contracting the biceps brachi, brachioradialis, brachialis, pronator teres and pronator quadratus. 

Hip Joint- Posterior pelvis rotation. Extension of semitendinosus, semimembranosus, biceps femoris and gluteus maximus.

Knee Joint- Concentric contraction by extension of the rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis.