Some Anatomy Drawing Of Javelin Throw

Well this was some kind of my homework (honestly, I am not obligated to draw this) . And somehow I decided to post in here in case anybody would like to see it.

So I divided Javelin throw into two steps.
1. Preparation

 In preparation the thrower hand that carry the javelin will make an shoulder extension by pulling the humerus to posterior and also do abduction as the hand getting farther from the body. The shoulder will also make a retraction because it was pulled to posterior

3. After Throwing

 After throwing the javelin body will likely lose balance and fall to anterior. The shoulder now go to the extension and protraction state as the humerus are now going to the anterior side. The shoulder will still make and abduction movement as it still getting farther from the body.

And a little bit extra information from me, Technically elbow can not do adduction and abduction movement. Because the elbow only had a Hinge Joint. If you see any movement that makes the elbow looks like doing abduction or adduction it's because the movement of the Shoulder joint.