6 Playground Moves That Make Exercise Fun Again
Monkey bars are perfect for pullups, the ultimate test of upper-body strength and an incredible core exercise. (Search: How to get strong enough to do a pullup) Using three different grips changes the emphasis on your upper-body pulling muscles: An underhand grip works your biceps, a neutral grip works your forearms and mid-back, and an overhand grip targets your lats and rear shoulders.
The move: Changing-Grip Pullup
How to do it: Alternate among three grips: 1) Underhand: palms facing your body on a single bar; 2) Neutral: palms facing each other on parallel bars; 3) Overhand: Palms facing away from you on a single bar. Perform a single rep of each type of pullup, changing your grip from a dead hang after each rep. (You can also try out mixed-grip pull-ups, in which one hand takes one type of grip while the other hand takes another.) Aim for 30 to 60 seconds at a time.