They use your body weight to strengthen and tone the core-stabilizing abdominal muscles. Situps work the rectus abdominis, transverse abdominis, and obliques in addition to your hip flexors, chest, and neck. They promote good posture by working your lower back and gluteal muscles.

What happens if I do sit-ups everyday?

In addition to looking great, doing push-ups and sit-ups daily will strengthen your muscles, improve your posture, core and upper body strength, burn calories and more. We refine our physical therapy treatments to help you heal from injury and manage chronic pain while delivering much of these benefits.

Do sit-ups really flatten your stomach?

The truth is, targeted fat loss — also known as spot reduction — is not possible, no matter how many crunches you do or products you buy. The only way you can lose fat from your belly is to lose fat from your entire body. Situps and crunches simply won't do this for you, even though I'm sure you've heard otherwise.