Here is a nice warm up routine you can go before or after a workout. This is a great exercise for anyone who wants to improve their shoulder mobility. 5 exercises with 10 repetitions each.
[embedyt] http://www.youtube.com/watch?v=JHHr7TReguo[/embedyt]
1. Chest opening
2. Overhead Pull Down and Stretch
3. Overhead and Side to Side
4. Fly
5. Triceps Overhead Pullover