Kneel down with the bar behind your neck.
1. Inhale and shorten your torso by moving your chest toward your thighs. Squeeze the abdominal muscles at the same time by flexing them.
2. Exhale while you perform the exercise. Once you touch your chest to your knees, return to the starting position and begin again. Breathe in on the way up.
Notes: Don’t use heavy weight with this movement. It is important to focus on the tension in your abdominals. The best way to do this is to squeeze the muscles as you contract them.