How Iridium Programs This

Iridium tracks progressive overload for this time-based isometric by analyzing trends in hold duration relative to your reported RPE. Recognizing the high stability demand of the suspension trainer, the AI also reviews your recent upper-body pressing history to ensure your anterior deltoids have sufficient recovery to support the movement.

Form Cues

Place elbows directly under your shoulders
Squeeze your glutes and quads tightly
Press your heels back firmly into the handles
Maintain a rigid straight line from head to heels
Brace your core as if expecting a punch

Don't

Don't let your lower back sag toward the floor
Don't pike your hips up toward the ceiling
Don't look forward or crane your neck up
Don't hold your breath while maintaining tension
Don't allow your shoulders to shrug up to your ears

Common Mistakes

Sagging hips (lumbar extension)
Piking hips too high
looking forward instead of down
Holding breath
Relaxing legs and glutes

Muscles Worked

This exercise is a powerhouse for the entire core complex, specifically targeting the transverse abdominis and rectus abdominis to create a rigid cylinder of stability. It also heavily recruits the anterior deltoids, quadriceps, and glutes as secondary stabilizers to maintain the neutral body position against the instability of the straps.