How Iridium Programs This

Iridium categorizes this exercise as a high-fatigue isolation movement, carefully tracking volume impact against your quadriceps' Maximum Recoverable Volume. Because performance here relies on moving your own mass, the algorithm scales progression targets based on your current body weight alongside any added load. The system also reviews your 7-day training history to ensure this intense deep-flexion movement fits within your current recovery capacity after recent heavy leg work.

Form Cues

Lock your feet securely into the pads
Squeeze your glutes to keep hips fully extended
Lower yourself slowly by bending at the knees
Keep a straight line from knees to shoulders
Drive through the balls of your feet to ascend

Don't

Don't bend at the hips or sit back
Don't round your shoulders forward
Don't bounce out of the bottom position
Don't let your lower back hyperextend
Don't rush the lowering phase

Common Mistakes

Hinging at the hips
Using momentum to stand up
Relaxing core tension
Cutting range of motion short
Curling the neck forward

Muscles Worked

This exercise primarily isolates the quadriceps, placing extreme emphasis on the rectus femoris muscle due to the extended hip position throughout the rep. While your core and glutes work isometrically to maintain a rigid torso, the load is almost entirely concentrated on the front of the thighs.