- Main muscle
- Abdominals
- Also works
- Mostly just that one
- Equipment
- None needed
How to do it
- Lie on your back with your legs straight and a few inches off the floor.
- Kick your legs up and down in small, quick alternating movements.
- Keep your lower back pressed into the floor the whole time.
Common mistakes
- Letting your lower back arch.
- Making the kicks big and slow instead of small and controlled.
Know what to lift next
Iron Streak puts lifts like the Flutter Kicks 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.