How Iridium Programs This

Iridium treats this as a stability-limited accessory movement, checking your spinal erector and core recovery scores to ensure fatigue does not compromise your balance. The AI counts this toward your hamstring and glute volume landmarks, using RPE tracking to ensure you reach sufficient intensity despite the lack of heavy external loading. If your settings favor high exercise variation, Iridium rotates this movement in to reduce systemic fatigue while maintaining posterior chain volume.

Form Cues

Center your kneeling knee directly on the dome's bullseye
Hinge at your hips while keeping a completely flat back
Extend your free leg straight back to act as a counterbalance
Engage your core to prevent your hips from rotating
Squeeze your glute to drive your hips forward to the starting position

Don't

Don't round your lower back at any point
Don't let your hips tilt or drop to one side
Don't look up at the ceiling; keep your neck neutral
Don't rush the lowering phase; control is key
Don't turn the movement into a squat by bending the knee excessively

Common Mistakes

Rounding the thoracic or lumbar spine
Rotating the hips excessively
Turning the hinge into a squat
Rushing through the movement
Poor knee placement on the BOSU

Muscles Worked

This movement primarily targets the hamstrings and glutes through hip extension, while the erector spinae works isometrically to protect the spine. The unstable BOSU platform recruits secondary stabilizers in the core and hips, forcing them to micro-adjust constantly to maintain balance.