Step-by-Step Instructions

1
Sit in the machine with your back and hips firmly pressed into the pad, adjusting the seat angle if available so the knees can reach at least 90 degrees of flexion.
2
Place your feet shoulder-width apart on the platform at mid-height, with toes turned out slightly (15-20 degrees).
3
Release the safety catches and slowly lower the sled by bending the knees and hips, descending until the thighs reach at least parallel or the knees approach 90 degrees.
4
Press through the full foot—heel, midfoot, and ball of foot—to drive the sled back up, extending the hips and knees simultaneously.
5
Stop just short of full knee lockout at the top to maintain muscular tension throughout the set.
6
Re-engage the safety catches after completing the set before unloading any weight.

Common Mistakes

Allowing the lower back to round off the pad at the bottom of the rep, which loads the lumbar spine under high compressive forces.
Placing the feet too low and too narrow, which increases knee shear stress and limits depth.
Locking the knees completely at the top, which unloads the muscles and transfers force through the joint capsule.
Using an excessively short range of motion to load more plates, sacrificing the muscle-building stimulus for ego weight.

About This Exercise

The machine leg press is a compound lower-body exercise that trains the quadriceps, glutes, and adductors through simultaneous hip and knee extension against heavy loads. The fixed sled path removes spinal loading, allowing trainees to push high volumes and intensities that might not be safe under a barbell squat. Foot placement on the platform directly manipulates muscle emphasis—higher placement increases glute and hamstring contribution, while lower placement biases the quadriceps.

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