The toes to bar exercise is a movement that works mainly your abdominal muscles. It also requires arm strength due to the kipping motion.
The toes to bars are a popular exercise in Crossfit workouts. Typically you’ll use a pull-up bar to perform the exercise, but if you don’t have one readily available then a sturdy tree branch will do just fine.
Keep in mind that greater thickness of a bar makes it harder to hold on to.
Start off in a dead hang and then start a kipping motion by swinging your legs back and forth. As your legs go back your chest should swing forward bringing your head through your arms.
Initially get a few good swings in to build up some momentum. On an upward swing of your legs, bring your toes all the way up to the branch/bar that your hands are gripping.
As your legs swing back down go right into the next repetition.