Recommendations: 2-3 Sets, 8-12 Reps
Sit on a chair with your feet flat on the floor. Hold water bottles with an overhand grip in front of your shoulders (palms facing to the front). This is the starting position. Keeping your shoulders down (do not shrug them), press the bottles straight up. As you press them upward, rotate them so that the palms are facing to the back. Exhale during this movement. Lower the bottles slowly to the starting position. Inhale during this movement. Repeat for the required number of repetitions.