This is hitting the deltoid, especially the anterior deltoid ... We hit all of your upper body muscles for an awesome workout. Have a great day.

Aim: To examine the pre- and post-impact activation of five upper extremity muscles in the tennis volley across conditions of ball speed, ball type and side of the body. Methods ... triceps brachii, ...

Secondary muscles include the core muscles (rectus abdominis, obliques, and transverse abdominis), serratus anterior ...