The lunge is a single-leg staple that builds the quads and glutes while training balance and fixing side-to-side imbalances.
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Get FormTwin — free on the App StoreLunges primarily target the quads and glutes of the front leg, with the hamstrings, adductors and calves assisting and the core stabilising your balance throughout.
Neither is better — they complement each other. Squats let you load heavier for raw strength; lunges train each leg independently, which builds balance and irons out left-right imbalances.
Reverse lunges shift a little more emphasis onto the glutes and hamstrings and are gentler on the knees, while forward lunges bias the quads slightly more.
This guide is general fitness information, not medical advice. Muscle involvement varies with form, grip and individual anatomy. Consult a professional before starting a new program.