How Iridium Programs This

Iridium uses this unilateral exercise to accumulate volume on the middle chest without imposing the high systemic fatigue of heavy pressing. Because single-arm work doubles the time required per set, the AI validates your specific time constraints before adding this movement to your rotation. To drive progress, Iridium monitors RPE feedback to ensure you are reaching close proximity to failure even with lighter cable loads.

Form Cues

Stand in a staggered stance with your core braced.
Keep a slight, rigid bend in your elbow throughout the movement.
Bring the handle across your body past your midline.
Squeeze your chest muscles hard at the peak contraction.

Don't

Don't rotate your torso to swing the weight.
Don't change your elbow angle to turn it into a press.
Don't shrug your shoulder up toward your ear.
Don't extend your arm too far back behind your shoulder.

Common Mistakes

Turning the fly into a press
Using momentum to swing weight
Failing to cross the midline
Shrugging the shoulders

Muscles Worked

This exercise primarily targets the pectoralis major, emphasizing the sternal (middle) fibers through horizontal adduction. The unilateral nature also heavily engages the obliques and core stabilizers to prevent torso rotation, while the anterior deltoids assist in the forward movement.