Iron Streak- Main muscle
- Quadriceps
- Also works
- Glutes, Hamstrings
- Equipment
- None needed
How to do it
- Stand tall with your feet hip-width apart.
- Step one foot back and across behind the other, like a curtsy, and bend both knees.
- Push through the front foot to stand back up; switch sides as you go.
Common mistakes
- Letting your front knee cave in.
- Twisting your hips instead of keeping them square.
Know what to lift next
Iron Streak puts lifts like the Curtsy Lunge 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.