Iron Streak- Main muscle
- Quadriceps
- Also works
- Glutes, Hamstrings
- Equipment
- Plyo box or Bench
How to do it
- Stand facing a box or bench and place one whole foot on top.
- Drive through that foot to stand up on the box.
- Step down slowly with the other foot; finish all reps, then switch legs.
Common mistakes
- Pushing off the floor with your back foot.
- Letting your knee cave in.
Know what to lift next
Iron Streak puts lifts like the Step-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.