Towel Tension ~ Arms & Shoulders Strong: This 15-minute upper body and arms workout focuses on building strength and stability in the shoulder girdle while enhancing handgrip strength and overall upper body endurance. Using a towel as resistance, this session activates key muscles in the shoulders, arms, chest, and upper back, helping to improve posture, mobility, and functional strength. Designed to be accessible and efficient, it’s a perfect way to tone and energize the upper body in a short amount of time.