Beginner exercise

Single-Leg Leg Extension

Also called SL Quad Extensions

  • Muscle Growth
  • Bodybuilding

GymDaze demonstration

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Single Leg Leg Extension

Technique

How to perform Single-Leg Leg Extension

  1. Adjust the seat so the working knee lines up with the machine pivot and your back is supported.
  2. Set the roller against the front of the lower shin, above the ankle.
  3. Hold the handles and keep the nonworking leg clear of the lever.
  4. Keep the working thigh and pelvis on the seat as you straighten the knee to lift the roller.
  5. Bend the knee under control to return to the starting position without dropping the stack.
  6. Complete the repetitions, then switch legs.

Programming relevance

Muscles involved

Primary targets: Rectus Femoris, Vastus Lateralis, Vastus Medialis.

MuscleScoreRole
Rectus Femoris0.9Target, Mover
Vastus Lateralis0.9Target, Mover
Vastus Medialis0.9Target, Mover