PULL-UP

When done properly, pull-ups are a great way to strengthen the lats and the weak mid-upper back muscles (traps and rhomboids) that climbers often lack. Improper form, however, can lead to overdeveloped biceps and elbow tendonitis. Always start in a relaxed position with your grip a couple inches outside shoulder width, palms facing away from your body, and thumbs on top of the bar.