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Knee extension

Knee extension

If this exercise becomes easy, you can add a light weight around your ankle or tie an elastic resistance band to a chair leg and one ankle.

Photo of a quadricep strengthening exercise (knee extension)
  1. While sitting in a chair, straighten one leg and hold while you slowly count to 5. Be sure you do not lock your knee.
  2. Repeat 8 to 12 times.
  3. Rest for a minute, and repeat the exercise.
  4. Do the same exercise with the other leg.

Current as of: May 1, 2026

Author: WebMD Ignite Staff
Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.