Try the Prone Around the World Dynamic Back Stretch to improve your posture before your workout, whether at home or in the gym. Lie face down on the floor with a towel supporting your forehead. Extend your arms fully overhead, palms facing down. Keeping your arms straight, bring your hands down towards your lower back, rotating your palms backward until the back of your hands touches your buttocks. Reverse the movement and perform this exercise 5 times, ensuring your arms do not touch the ground. This stretch engages your back muscles and promotes better posture for your workout.