Leg Press
The leg press is a machine exercise in which you sit reclined against a padded back support and push a weighted platform away with your feet along a fixed track. It works the quadriceps above all, with the glutes and inner thighs helping more as depth and foot position change, and it lets you load the legs heavily with no bar on your back and no balance demand.
Also called: Machine Leg Press, 45 Degree Leg Press, Single-Leg Leg Press, Angled Leg Press · Equipment: machine · Pattern: squat
Step by step
- Sit in the machine with your back and hips flat against the pad and your head resting back.
- Place your feet about shoulder-width apart in the middle of the platform, toes turned slightly out.
- Press the platform up to straighten your legs, release the safety handles and hold the side handles.
- Bend your knees and let the platform come down towards you under control, keeping the knees in line with the toes.
- Descend until your knees are at about 90° or deeper, as long as your hips and back stay on the pad.
- Push through the whole foot to press the platform back up, finishing with the knees straight but not snapped back.
- After the last rep, re-engage the safety handles before taking your feet off the platform.
- Hips and back flat on the pad
- Push through the whole foot
- Knees in line with the toes
- Deep and controlled on the way down
- Press the platform away to straight legs
In VALDA, these cues are one tap away on the exercise while you train.
What it trains
| Muscle | Role | Evidence |
|---|---|---|
| Quadriceps: vastus lateralis | Prime mover | B |
| Quadriceps: vastus medialis | Prime mover | B |
| Quadriceps: vastus intermedius | Prime mover | C |
| Gluteus maximus | Secondary | B |
| Adductors | Secondary | C |
| Quadriceps: rectus femoris | Secondary | C |
| Hamstrings | Stabiliser | B |
| Erector spinae | Stabiliser | D |
Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.
What goes wrong, and the fix
Hips lifting off the seat
Fix: Bring the platform down only as far as your hips and back stay on the pad.
Heels lifting off the platform
Fix: Move the feet a little higher on the platform and keep the whole foot flat.
Knees caving inward
Fix: Keep the knees in line with the toes on the way down and up.
Cutting depth short
Fix: Bring the platform down until your knees reach about 90° or deeper.
Snapping the knees straight
Fix: Finish each rep with the knees straight but not forced back.
Pushing on the knees with the hands
Fix: Hold the side handles and let the legs press the platform alone.
What the research says
Muscle growth · first choiceGeneral fitness · first choiceStrengthRehab & prehabEnduranceFat loss & conditioning
- Range of motion — A meta-analysis found full-range training built more leg muscle and strength than partial-range training.
- Muscle focus — In a lab comparison, the back squat produced about twice the hamstring activity of the leg press. Many lifters pair the leg press with a hamstring exercise such as a leg curl.
- Foot position — A squat study found a wider stance raised hip and inner-thigh muscle demand while front-thigh demand stayed similar. No study has compared leg press foot positions directly.
- Load and effort — Research comparing loads finds maximal strength favours heavier loads, while muscle growth is similar across a wide range of loads when sets are taken close to failure. Sets that finish a few reps short of failure capture most of the growth benefit.
- Volume and frequency — Research links more weekly sets for a muscle to more growth, with diminishing returns. Around 10 or more hard sets a week has been associated with more growth than fewer than 5, and training a muscle about twice a week is a common way to spread that volume.
- Rest — In trained lifters, rests of about 3 minutes between sets have produced greater strength and size gains than 1-minute rests.
Swap it mid-workout
With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.
Log the leg press in VALDA, with these cues one tap away while you train and your history for it in one place.
General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.