How is this different from a standard 45-degree leg press?

The Hackenschmidt machine typically places the user in a more vertical or specific angled orientation that shifts more direct load onto the quadriceps while providing extra back support.

Where should I place my feet on the platform?

A middle-to-lower foot placement focuses more on the quads, while a higher placement shifts more work toward the glutes and hamstrings.

Is this exercise safe for individuals with knee pain?

It can be safe if you use a controlled tempo and avoid locking your knees; however, you should always consult a professional if you have pre-existing joint issues.

How to Do the Hackenschmidt Leg Press | Quad Exercise Guide

Master the Hackenschmidt machine leg press with our expert guide. Learn the correct form, avoid common mistakes, and build stronger quadriceps safely.

How to Perform

Adjust the weight plates on the machine and lie back against the padded support with your shoulders tucked under the shoulder pads.
Place your feet shoulder-width apart on the platform with your toes pointed slightly outward.
Straighten your legs to lift the weight slightly and disengage the safety locks using the side handles.
Inhale and lower the platform slowly by bending your knees until your thighs are slightly past parallel with the footplate.
Exhale as you drive through your heels to push the platform back to the starting position.
Maintain a slight bend in your knees at the top of the movement to keep tension on the muscles.
Engage the safety locks immediately once your set is complete before exiting the machine.

Common Mistakes

Locking the knees at the top of the repetition
Allowing the lower back or glutes to lift off the back pad
Pushing primarily through the toes rather than the heels
Using a range of motion that is too shallow to engage the quads

Muscles Worked

Primary movers

Quads

Stabilizers

Glutes
Adductors
Hamstrings

Related Guides

Quads · Legs