How Iridium Programs This

Iridium schedules this high-stability movement only when your recent core and upper back volume indicates you are recovered enough to maintain strict control. Since external load is constant, Iridium relies on your RPE feedback to distinguish when you should steepen your body angle for progressive overload. The algorithm also tracks your performance relative to your body weight to ensure rep targets remain challenging as your mass fluctuates.

Form Cues

Maintain a rigid plank position from head to heels throughout the set
Pull your body toward the anchor while extending one arm up and one arm down
Squeeze your shoulder blades together at the peak of the movement
Keep tension on the straps during the return to the start
Alternate which arm goes to the '12 o'clock' position with each rep

Don't

Don't allow your hips to sag or pike upwards
Don't shrug your shoulders toward your ears as you pull
Don't let the straps go slack at the bottom of the movement
Don't use momentum to jerk your body forward
Don't bend your elbows excessively; keep arms relatively straight like clock hands

Common Mistakes

Breaking the plank alignment with hips
Bending elbows too much (turning it into a curl)
Slack in straps between reps
Uneven pulling causing torso rotation
Feet placed too far forward for current strength level

Muscles Worked

This exercise heavily engages the posterior chain of the upper body, specifically the latissimus dorsi, rhomboids, and posterior deltoids. The asymmetrical arm positions (one high, one low) force the rotator cuff and core stabilizers to work harder to prevent rotation, providing excellent functional strengthening for shoulder health.