Iron Streak- Main muscle
- Abdominals
- Also works
- Mostly just that one
- Equipment
- Other weight machines
How to do it
- Sit with your chest against the pad and hold the handles.
- Curl your torso down by tightening your abs.
- Pause, then return slowly.
Common mistakes
- Pulling with your arms.
- Using so much weight your hips do the work.
Know what to lift next
Iron Streak puts lifts like the Machine Seated 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.