How to Do Leg Extension

Leg Extension is a quads exercise using machine, listed as beginner in the A90 Training Club catalogue.

Also known as Leg Extension Machine.

Primary muscle

Quads

Equipment

Machine

Difficulty

Beginner

01 / Move with control

How to perform

How to do Leg Extension

  1. 01Sit in the leg extension machine and adjust the padded bar so it rests just above the ankles.
  2. 02Align the knee joints with the pivot point of the machine and grip the side handles for stability.
  3. 03Kick the legs upward until the knees are fully locked out, exhaling during the effort.
  4. 04Pause for a second at the top to maximize the peak contraction of the quadriceps.
  5. 05Lower the weight stack slowly until the knees return to a 90 degree angle.

Same guidance shown inside the A90 app

02 / Anatomy

Muscles worked by Leg Extension

Primary Stabiliser Inactive

Tap to explore manually

Primary movers

  • Quads Extends the knee, driving squats, lunges and jumps.

Stabilisers

  • Core Stabilises the spine and transfers force.
  • Lower back Stabilises the spine during lifts and bends.
  • Forearms Grips and stabilises the wrist under load.

03 / A90 Coach

A90 Coach tip

Fix the hips firmly into the seat to prevent the lower back from arching as the knees reach full extension.

Same coaching engine used inside the A90 app

05 / FAQ

Leg Extension questions

What muscles does Leg Extension work?

Leg Extension is catalogued as a quads exercise in A90 Training Club, with the quads as its primary muscle group.

How do you do Leg Extension correctly?

Sit in the leg extension machine and adjust the padded bar so it rests just above the ankles. Align the knee joints with the pivot point of the machine and grip the side handles for stability. Kick the legs upward until the knees are fully locked out, exhaling during the effort. Pause for a second at the top to maximize the peak contraction of the quadriceps. Lower the weight stack slowly until the knees return to a 90 degree angle.

What is the A90 coach tip for Leg Extension?

Fix the hips firmly into the seat to prevent the lower back from arching as the knees reach full extension.

Is Leg Extension suitable for beginners?

Leg Extension is rated beginner in the A90 Training Club catalogue.

What equipment do you need for Leg Extension?

Leg Extension uses machine.

A90 Intelligence

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