Leg Extension
What is this machine?
Reidenojennuslaite on kuntosalilaite, joka kuormittaa ensisijaisesti Quadriceps.
The exercise suits a beginner: the range of motion is guided and you can start light.
On a machine the range of motion is guided, which makes it safe to train alone — but the settings must be adjusted to your own body, or the movement will be felt in the wrong place.
Key facts
Primary muscleQuadriceps
Secondary muscles–
Equipmentkuntosalilaite
Movement patternlower body
Difficultyeasy
Video📱 Luio
Instructions and video are in the app
This page tells you what the machine is. Step-by-step instructions, common mistakes and a video of the movement are in the Luio app — the video shows the range of motion that text cannot describe.
Open in the app⚠️ Most common mistake: Slamming the legs straight with momentum, then dropping the weight fast, which removes most of the loading. Setting the seat wrong so the knee pivot doesn't match the machine, which puts shear stress on the joint. Lifting the hips off the seat to muscle the weight up, which shifts work away from the quads. Cutting the range short on the bottom half, which trains only the easy top portion of the lift.
💪 Where you should feel it: Mainly in the Quadriceps.
Variations and alternatives
Same muscle and movement pattern with different equipment.
Train this exercise in Luio
Sets, weights and rest are logged automatically, and Luio suggests your next weight.
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