Machine · Legs and glutes

45° leg press at the gym

The 45° leg press is a plate-loaded machine that lets you push heavy with your legs while staying more stable than with a free squat. It mainly trains your quadriceps and glutes. It works well if you’re just starting with machines and also if you’re more advanced and want to go heavier.

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The essentials

Feet hip-width in the middle of the platform.
Lower without lifting your lower back off the pad.
Don’t lock your knees at the top.

Muscles worked

Front

Back

Primary: Quadriceps · Glutes

Setup

Adjust the seat or back position so your knees can bend without your lower back lifting off the pad.
Place your feet in the middle of the platform, about shoulder-width, toes slightly turned out if that feels better.
Make sure your hips and lower back stay firmly against the back pad with no big gap.
Load a light to moderate weight to start, especially if you’re new to this machine.
Check how the safety stops and hooks work and how to re-rack the sled before your first set.

How to do it

Sit down and press your hips and lower back into the pad, holding the handles for stability.
Place your feet flat on the platform, knees lined up with the direction of your toes.
Press the platform slightly to support the weight, then move the safety hooks or stoppers out of the way, depending on the machine.
Inhale and lower the weight under control for about 2 to 3 seconds, bending your knees until you feel a good stretch without your lower back lifting.
Drive through your heels to press the platform back up in 1 to 2 seconds, exhaling through the hardest part, stopping just before your knees fully lock.
At the end of your set, press the weight up, re-engage the safeties, and only then let the tension off with your legs.

Common mistakes

Going too deep and rounding the lower back
Instead : Stop your range of motion as soon as you feel your lower back start to lift off the pad. Adjust the seat or shorten your depth a bit so you can keep a natural curve in your spine.
Locking out the knees at the top
Instead : Keep a slight bend in your knees at the top of each rep. Think about pushing through your heels without snapping your joints straight.
Pushing from the toes only
Instead : Keep your whole foot in contact with the platform. If your heels are lifting, move your feet slightly higher or lower the weight so you can stay in control.
Letting the knees cave inward
Instead : Keep your knees in line with your toes throughout the movement. Focus on pushing evenly with both legs and adjust your stance width so you feel stable.

Coach tips

A solid tempo is 2 to 3 seconds down and 1 to 2 seconds up, with no bouncing at the bottom.
Breathe with the movement: inhale on the way down, exhale as you press up through the hardest part.
You can place your feet a bit higher on the platform if your knees feel cranky with a lower foot position.
Increase the plates slowly from workout to workout, keeping a form that feels stable and controlled.

Variations

Feet closer together in the middle of the platform to put more emphasis on the front of your thighs, if your knees feel good.
Feet slightly wider on the platform for a different feel in your glutes.
Single-leg press (one foot on the platform, the other off or on the edge) with a lighter load to focus on each side separately.

Sets and reps

The 45° leg press is often done for 3 to 4 sets of 8 to 15 reps, depending on whether you want to focus more on strength or on muscular endurance. Many leg workouts use it as a main exercise, or right after another heavy movement like a hack squat.

Exercises on this machine

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Common questions

Where should I put my feet on the 45° leg press?

Start with your feet in the middle of the platform, about shoulder-width, flat on the surface. If your knees feel stressed, slide your feet a bit higher. If your heels lift, bring them slightly lower. The key is keeping your lower back glued to the pad and your knees tracking in line with your toes.

Does the leg press replace squats?

It’s not exactly the same, but it’s still a big lower-body movement for your quads and glutes. Some programs use the leg press as a main lift, others as a complement to something like a hack squat or a seated leg press. You can choose based on what feels best for your body.

What if I feel knee or back pain on the leg press?

Stop the set right away and lower the weight. Check your depth and make sure your lower back stays on the pad. If the pain keeps coming back, even when you go lighter, it’s better to talk with a health professional before continuing with the leg press.

What’s the difference between a 45° leg press and a seated leg press?

Both mainly work your quads and glutes. On the 45° leg press, you push a plate-loaded sled and can often go quite heavy. The seated leg press is usually more compact and very guided, which can be handy if you want a very stable movement or if your gym space is smaller.