Leg Press vs Leg Extension — Compound vs Isolation
Leg press vs leg extension — which should you actually do?
The horizontal LEG PRESS is a COMPOUND lift: it builds your quads, but your glutes do a lot of the work too. The LEG EXTENSION ISOLATES the quads — your glutes barely fire, so all the tension stays on the target.
Use compounds to build size and strength. Use isolation to target a muscle and fix weak points.
Exercises in this video
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Leg Extension Isolate and sculpt your quads on the leg extension — the one machine that targets the quadriceps directly. Setup, form, common mistakes, and how to use it as a finisher. -
Leg Press Build powerful quads and glutes on the leg press. Push heavy loads safely through a guided path — setup, safe depth, common mistakes, and how to load it without locking your knees.
