3. Squat and Reach

The reason squats tone your midsection is because they require a certain amount of balance. Anytime you must balance your body, it activates your core, which helps tone and tighten them. To do this move stand with your feet hip-width apart, arms at your sides. Lower your body as if sitting into a chair, while reaching your arms straight upward. Raise your body and lower your arms to finish one rep.