Gorilla Crunch Chin-ups

Grip the bar with an overhand grip (palms facing you), arms slightly wider than shoulder width apart. Bend your knees at a right angle so that your calves are parallel to the floor and your thighs remain perpendicular to it. This will be your starting position. As you exhale, pull up while twisting your knees up until they are at chest level. Finish the pull-up when your nose is level with the bar. Hint: at this very moment, you must also finish the twist with your knees. Exhaling slowly, return to the starting position. Complete the required number of repetitions. Variations: To make the exercise more difficult, use a dumbbell between your feet as an additional burden. If you're feeling like a very advanced bodybuilder, try doing one-arm pull-ups with your other hand wrapped around your other wrist.