Iron Streak- Main muscle
- Abdominals
- Also works
- Mostly just that one
- Equipment
- None needed
How to do it
- Lie on your back with your hips and knees bent to 90°, arms on the floor.
- Curl your hips off the floor, bringing your knees toward your chest.
- Lower your hips slowly back down.
Common mistakes
- Swinging your legs to throw your hips up.
- Letting your lower back arch as you lower.
Know what to lift next
Iron Streak puts lifts like the Reverse Crunch 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.