A lot of people go from the office to the gym after a long day of work. When you're sitting at your desk all the time, then decide to head over to the gym and do your workout, you may soon find that you'll be feeling pain in your shoulder. At some point it starts to feel worse, and it just keeps getting bad from there. What that may be is a shoulder impingement.
If you suffer from this, or want to know how to prevent or fix it, here's a video from Dr. Jordan Shallow as he talks about 3 ways to prevent shoulder impingement.