How to do the Sled Lying Squat
LegsQuadsMachineBeginner
The sled lying squat puts you in a fixed, supported position that lets you load the quads with precision and confidence, making it one of the smartest entry points for building serious leg strength. Master this machine and you lay the foundation for powerful, resilient legs that carry over to every lower-body lift you will ever do.
Add this to my personalized plan →Muscles worked
Primary
Quadriceps
Secondary
GlutesHamstringsCalves
Step-by-step
- Set the back pad flat and position your feet shoulder-width apart on the footplate with toes pointing slightly outward
- Grip the side handles firmly, brace your core, and press the footplate away until your legs are almost fully extended
- Bend at the knees and hips simultaneously, lowering the sled in a controlled 2-to-3 second descent until your thighs reach parallel or just below
- Drive through your full foot to press the sled back to the start, squeezing the quads hard at the top without locking the knees aggressively
Common mistakes
- Letting the lower back peel off the pad on the descent, which shifts stress onto the spine instead of the quads, so actively press your back flat into the pad throughout every rep
- Placing the feet too high on the plate, which turns the movement into a glute-dominant hip hinge, so keep the feet centered or slightly low to keep tension on the quads
- Bouncing at the bottom to reverse the sled, which bleeds tension and risks joint stress, so pause for one count at the bottom and initiate the press with muscular effort alone
Pro tip — On every rep, think about pushing the footplate away from you rather than straightening your legs, this subtle mental cue keeps the force vector honest and maintains full quad engagement all the way through the concentric phase.
Sets & reps by goal
Build muscle3–4 sets × 6–10 reps
Get stronger4–5 sets × 3–6 reps
Lose fat / tone3 sets × 10–12 reps
Rest: 2–3 min between sets (60–90s on lighter days).
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