Selectorised machine

Leg Extension

A seated machine that straightens the knee against a padded lever. The guided path isolates the front of the thigh without requiring balance.
All equipment guides
01
Start position
02
Finish position
MOVEMENT PATH
The knee opens as the platform or pad moves away.
MUSCLES WORKED

Primary and supporting roles, kept distinct.

45° view
Primary
Quadriceps
Supporting
No supporting muscle recorded
PRIMARY
Quadriceps
SUPPORTING
None listed

How to set it up

1
Align the machine pivot with the side of the knee.
2
Place the lower shin behind the roller pad and secure the back position.
3
Hold the handles and keep the hips against the seat.

How the movement works

1
Straighten the knees to lift the shin pad, stopping before a forceful lockout.
2
Lower the pad slowly until the knees return to the comfortable starting bend.
RECORD IT IN SELFMATE

Load + repetitions

SelfMate remembers previous values and keeps this movement in the same private history as the rest of your training.
Equipment geometry and adjustment points vary by manufacturer. Follow the placard on the specific machine and ask a qualified trainer when you are unsure.
Your next session

Understand the movement. Keep the record.

Use the guide here, then open SelfMate beside the equipment when you are ready to record the work.
SELFMATE

Built for the workout, not the feed.

A private gym log that remembers the sets, sessions, and exercise context you want to carry forward.
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