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Exercise guide

Leg press: muscles worked and how to do it

The leg press trains your legs as you push a weighted platform away from you while seated in a machine, with your back supported. GymTribe's library lists it as Leg Press, with the quads as its target muscle.

Illustration of a leg press, showing the start and end positions

How to do a leg press

  1. Sit in the machine with your back and hips flat against the pad.

  2. Place your feet on the platform about shoulder-width apart, in the middle of it, with your toes turned out slightly.

  3. Push the platform up a little and release the safety handles, keeping a slight bend in your knees.

  4. Lower the platform under control by bending your knees toward your chest, keeping them in line with your toes.

  5. Stop when your knees are at about 90 degrees, or before your hips start to curl off the seat.

  6. Push through your whole foot to press the platform back up, stopping just short of locking your knees.

These steps describe common technique. If something hurts, stop and ask a qualified coach or clinician.

Common leg press mistakes

  • Hips lifting off the seat at the bottom

    Stop each rep just before your lower back starts to round off the pad. That is your depth.

  • Locking your knees hard at the top

    Finish with a slight bend so the weight stays on your legs, not your joints.

  • Knees caving in

    Keep them tracking over your toes as you press.

  • Loading more than you can take through a full range

    Short reps with a heavy sled make your log look better than your legs are. Keep the same depth every session.

How to track your leg press

Log the weight and reps of every set. Over a few weeks, the heaviest weight you lift and your estimated one-rep max show whether you are getting stronger, even when your sets use different rep counts.

Estimated 1RM, Epley formula

160 kg × (1 + 10 ÷ 30) ≈ 213 kg

A set of 10 at 160 kg estimates a one-rep max of about 213 kg.

Leg press compared

Leg press questions

What muscles does the leg press work?

Mostly the quads, with the glutes, adductors and hamstrings helping. In GymTribe's muscle map, each set of Leg Press counts toward the quads.

Does foot position on the leg press matter?

Yes. Feet lower on the platform bend your knees more and put more work on the quads; feet higher bend your hips more and bring in the glutes and hamstrings. A narrower stance also leans toward the quads. GymTribe lists Leg Press (close stance) as its own exercise, so you can track it apart.

Is the leg press weight comparable to a squat?

No. The sled's angle, its own weight and the back support all change the load, and machines differ from gym to gym. Compare your leg press only with itself, on the same machine.

How do I estimate my leg press one-rep max?

Use the Epley formula, weight × (1 + reps ÷ 30). A set of 10 at 160 kg estimates about 213 kg. The 1RM calculator on this site does the sum for any set.

How do I track my leg press in GymTribe?

Log each set's weight and reps under Leg Press. Every session adds a point to its charts: heaviest weight and estimated 1RM, best set volume and most reps, and best session volume and max session reps. A New PR alert appears when a set beats your heaviest weight, estimated 1RM or rep record.

More quads exercises in GymTribe

GymTribe counts these toward the quads too. The ones with a guide are linked.

More legs and glutes guides

All exercise guides →

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