Common arm workouts with overhead movements can cause pain or injury, according to trainer Cat Kom. If you feel a sharp pain or pinch in your shoulder or back, try a more joint-friendly exercise.

The most famous technique for building arm muscles is the curl, which increases the size of the biceps. Some trainers, however, make fun of this exercise as “curls for the girls” because men often ...

Men and women who briefly contracted their arm muscles as hard as possible once daily increased their biceps strength by up to 12 percent in a month. By Gretchen Reynolds Could three seconds a day of ...