FormTwinExercises › Lunge

What muscles does the Lunge work?

The lunge is a single-leg staple that builds the quads and glutes while training balance and fixing side-to-side imbalances.

Primary muscles worked

Secondary muscles worked

See these muscles on your own body

FormTwin gives you a living 3D twin of your anatomy. Tap any muscle to see how to train it, and watch the muscles you work light up as you log your sessions.

Get FormTwin — free on the App Store

How to do the Lunge

  1. Stand tall, then step forward into a long stride.
  2. Lower until both knees are bent about 90°.
  3. Keep your front knee over your ankle, torso upright.
  4. Drive through your front heel to return or step through.

Common mistakes

Variations

Frequently asked questions

What muscles do lunges work?

Lunges primarily target the quads and glutes of the front leg, with the hamstrings, adductors and calves assisting and the core stabilising your balance throughout.

Are lunges better than squats?

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.

Do reverse lunges work different muscles?

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.

Related exercises

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.