Punching Movements
A good exercise for
warming up prior to doing normal boxing, or to help work the muscles of the
shoulder area, which are highly developed in conditioned boxers.

Simulate a number of different boxing moves, always at a reduce power rate, aim to work at speed for a shorter range of movement than normal to avoid pulling any muscles.
You may decide to work one arm at a time, alternate arms, or even work both arms together.
Try and combine movements, i.e. alternate jabs to the front, followed by right arm jab to the side, whilst the left hand acts as a face guard, finishing with double punching overhead.
Best performed in front of a mirror, and to loud music.