My client MaryKay has never been able to do a chin up. After a chin up specialization program I put her on at 54 years old she can do one.

A good way to build and improve chin/pull up strength is to work on your negative or eccentric strength.

One thing to keep in mind anytime doing chin ups/pull ups is to keep your hips from swinging forward to help propel you upwards.

Chin ups/ pull ups are one of the best abdominal exercises you can do. There isn't an exercise I feel in my abs the next day more then chins