For this exercise you will need access to parallel bars. To get yourself into the starting position, hold your body at arms length (arms locked) above the bars.
While breathing in, lower yourself slowly with your torso leaning forward around 30 degrees or so and your elbows flared out slightly until you feel a slight stretch in the chest.
Once you feel the stretch, use your chest to bring your body back to the starting position as you breathe out. Tip: Remember to squeeze the chest at the top of the movement for a second.
Repeat the movement for the prescribed amount of repetitions.