Mixed Grip Chin

How to do it

Using a spacing that is just about 1 inch wider than shoulder width, grab a pull-up bar with the palms of one hand facing forward and the palms of the other hand facing towards you. This will be your starting position.
Now start to pull yourself up as you exhale. Tip: With the arm that has the palms facing up concentrate on using the back muscles in order to perform the movement. The elbow of that arm should remain close to the torso. With the other arm that has the palms facing forward, the elbows will be away but in line with the torso. You will concentrate on using the lats to pull your body up.
After a second contraction at the top, start to slowly come down as you inhale.
Repeat for the recommended amount of repetitions.
On the following set, switch grips; so if you had the right hand with the palms facing you and the left one with the palms facing forward, on the next set you will have the palms facing forward for the right hand and facing you for the left.

What muscles does the Mixed Grip Chin work?: Mainly the middle back, with help from the biceps, lats.
What equipment do I need?: Other equipment.
Is it good for beginners?: It is rated expert level, so learn simpler versions first.
How do I track progress on it?: Log each set and beat the weight or reps from last time. Liftrung shows your last set beside the next one and estimates your one-rep max from your sets.

Exercise descriptions: free-exercise-db, public domain.