A push-up requires strong shoulders, arms, back, and core muscles, which need proper training ... and shoulder joint ...

demonstrates the proper form for the push-up. Special thanks to David Sanders. Following is a transcript of the video. They’re easy to do when you have no equipment and you can work the chest ...

Be honest: When you do push-ups, are you doing real push-ups? Or are you worming your way up to plank and speeding through ...