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Exercise Library/Quads/Leg Press/One-Legged Seated Leg Press
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One-Legged Seated Leg Press

Leg PressUnilateralStrength

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The One-Legged Seated Leg Press is a unilateral strength exercise performed on a seated (horizontal) leg press machine, pressing the platform away with one foot at a time. Its primary purpose is to build lower body strength and address muscle imbalances by isolating one side at a time. It mainly targets the quads, glutes, and hamstrings, benefiting athletes and beginners seeking improved unilateral leg power and stability, and requires a seated leg press machine.

How to Perform One-Legged Seated Leg Press

  1. 1Sit in a seated (horizontal) leg press machine with your back flat against the seat pad. Place your right foot in the center of the platform, with your left foot resting on the platform edge or a footrest beside the machine.
  2. 2Grip the side handles, release the safety catches, and set your right foot flat with toes pointing slightly forward, knee tracking in line with your foot.
  3. 3Engage your core and keep your back pressed into the seat throughout.
  4. 4Inhale as you bend your right knee to lower the platform toward you, keeping the movement controlled.
  5. 5Exhale as you drive through your right heel to press the platform away, extending your knee without locking it out completely.
  6. 6Pause briefly at full extension, then repeat for the desired reps on the right leg.
  7. 7Re-rack the safety catches, switch foot position, and repeat on the left leg.
  8. 8Key form tips: Keep your working knee tracking over your toes—avoid letting it cave inward. Maintain a neutral spine against the seat pad and use a slow, controlled tempo. Common mistake: Rushing the movement or letting the hips shift off the seat, which reduces effectiveness and risks strain.

Muscles Worked

Front

Back

Primary
Secondary
Primary
QuadsGlutesPosterior thighs

Equipment Required

Leg Press

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Quick answers

What muscles does One-Legged Seated Leg Press work?
One-Legged Seated Leg Press primarily targets the Quads, Glutes, Posterior thighs.
What equipment do I need for One-Legged Seated Leg Press?
One-Legged Seated Leg Press requires Leg Press. Make sure to select an appropriate weight for your fitness level.
Is One-Legged Seated Leg Press a unilateral exercise?
Yes, One-Legged Seated Leg Press is a unilateral exercise, meaning it works one side of your body at a time. This helps identify and correct muscle imbalances between your left and right sides.
How do I perform One-Legged Seated Leg Press correctly?
One-Legged Seated Leg Press is performed in 8 steps. Start by: Sit in a seated (horizontal) leg press machine with your back flat against the seat pad. Place your right foot in the center of the platform, with your left foot resting on the platform edge or a footrest beside the machine. See the full step-by-step instructions above for complete form guidance.
What type of exercise is One-Legged Seated Leg Press?
One-Legged Seated Leg Press is a strength training exercise designed to build muscle and increase force production. It primarily works the Quads, Glutes, Posterior thighs.

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