Recommendations: 1-3 Sets, 10-15 Reps
Sit on a chair with your feet flat on the floor, with a water bottle held against the back of your head (no matter your experience, start very light no more than 10 to 20 pounds). This is your starting position. Bend forward at the waist until your torso is parallel with the floor. At the bottom of the movement, your chest should be down against your thighs. Inhale while doing this movement. Slowly straighten up, returning to the starting position. Exhale while doing this movement. Repeat for the required number of repetitions.