Push-ups will work wonders for your upper body, increasing the muscle size & strength of your overall arm/chest/serratus/core areas. Doing push-ups with poor form offers weak results, or worse yet, it could cause an injury that makes any push-up uncomfortable. PUSH UPS: TREATING YOUR HANDS LIKE YOUR FEET FOR PROPER EXECUTION? Do your shoulders hurt when doing push- ups? No matter how hard you try, your shoulders always tend to internally rotate, and cause you shoulder impingement as a result.
