Strength exercise

Hack Squat Machine

How to do it

Set the shoulder pads snug and position the feet shoulder width apart on the platform, slightly forward of center.
Release the safety catches and brace the core before unlocking the sled.
Bend the knees and hips to lower the sled, keeping the lower back flat against the pad throughout the descent.
Descend until the thighs are at least parallel to the platform, feeling the load through the quads and glutes.
Drive through the whole foot to press the sled back up, squeezing the glutes as the hips extend.
Keep the knees tracking over the middle toes instead of collapsing inward on the drive up.

QuadricepsMuscles located at the front of the thigh, responsible for extending the knee. All Quadriceps exercises

Gluteus MaximusLargest gluteal muscle responsible for hip extension and external rotation. All Gluteus Maximus exercises