Recommendations: 2-3 Sets, 8-12 Reps
Stand with your feet about shoulder-width apart and your knees slightly bent. Hold water bottles with an inwards grip in front of your shoulders. This is the starting position. Keeping your shoulders down (do not shrug them), press the bottles straight up. Exhale during this movement. Lower the bottles slowly to the starting position. Inhale during this movement. Repeat for the required number of repetitions.