- Main muscle
- Abdominals
- Also works
- Mostly just that one
- Equipment
- None needed
How to do it
- Lie on your back with your knees bent, feet flat, and arms crossed on your chest.
- Curl up off the floor until your chest is near your thighs.
- Lower back down slowly, one vertebra at a time.
Common mistakes
- Jerking up with momentum.
- Letting your feet lift off the floor.
Know what to lift next
Iron Streak puts lifts like the Sit-Up into a weekly plan built around your goal, schedule and equipment. Every set shows the weight and reps to aim for, and your streak keeps score.