Exercise movement reviewed by:Marie Braga, PT, DPT, CSCS

How Iridium Programs This

Since Plank Surrenders rely heavily on the anterior deltoids and triceps, Iridium checks your per-muscle recovery status to ensure recent pushing workouts haven't pre-exhausted your necessary stabilizers. The AI attributes volume from these sets to your shoulder and tricep totals, ensuring you stay within your Maximum Recoverable Volume for those groups. Additionally, Iridium tracks your performance relative to body weight to accurately detect progressive overload trends.

Form Cues

Brace your core tightly to lock your hips in place
Place your hand directly beneath your shoulder to push up
Drive through the palm to extend your arm fully
Alternate your lead arm with every repetition
Keep your body in a straight line from head to heels

Don't

Don't let your hips rock side-to-side
Don't allow your lower back to sag toward the floor
Don't place your hands too far forward in front of your shoulders
Don't rush the movement at the expense of stability
Don't let your head drop or neck strain

Common Mistakes

Excessive hip shifting or wobbling
Hyperextending the lower back
Always leading with the same arm
Flaring elbows out too wide
Holding the breath during the transition

Muscles Worked

This exercise primarily targets the entire core complex, specifically forcing the transverse abdominis and obliques to work overtime to prevent hip rotation during the single-arm support phases. Secondarily, it builds functional endurance in the anterior deltoids and triceps as they repeatedly lift and lower your bodyweight against gravity.