Exercise library / Leg Extension
Isolation · Isolation
Leg Extension
Leg Extension is an isolation exercise that targets the quads directly. Control the lowering phase, work through a full range of motion, and pick a load you can move without body English. It is easy to recover from, so it slots in almost anywhere in a session.
Primary muscles
Quads
Secondary muscles
None to speak of
Equipment
Machine
Movement pattern
Isolation
Type
Isolation (single-joint)
Substitutions
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Sissy Squat
Also trains the quads.
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Leg Press
Also trains the quads.
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Bodyweight Squat
Also trains the quads.
Get a plan that programs Leg Extension for you
FitCoach logs what you lift, learns how you progress, and slots Leg Extension into your week at the right volume and load — add FitCoach to Claude and say “plan my week.”
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