How to: Sit-Ups
Muscles: Abdominals & Obliques
Start in the fully inverted and locked position.
Beginners: In a slow, controlled motion, use your abdominals to bring your back off of the table and reach your hands towards your knees. Grab behind your knees and use your arms to lift your torso upward. Hold for 3 seconds, then in the same slow, controlled motion, lower your body then repeat.
Advanced: Do as above, except do not use your hands to grab your knees. Place your hands behind your head and bring your chin as high as you can. (Watch to not catch your arms/elbows on the inside of the A-frame.)
Reps: 10 to 15 reps
Sets: 3 to 5 sets