About this exercise
A gentle seated exercise performed on a chair where you alternate extending each knee to strengthen the quadriceps with minimal joint stress, making it well-suited for beginners and rehabilitation programs.
Seated Alternate Knee Extension on Chair
Step by step instructions, muscle activation and variants for the Seated Alternate Knee Extension on Chair.
EasyQuadriceps
How to Perform
- Sit upright on the edge of a chair with your back straight and feet flat on the floor
- Engage your core for stability
- Slowly straighten one knee, extending the leg to approximately hip height
- Hold briefly at the top, then lower the leg back to the floor
- Immediately extend the opposite knee in an alternating fashion
- Continue alternating legs for the desired number of repetitions
Muscle Activation
Primary
Quadriceps
Secondary
Core
Common Mistakes
Common mistakes content is coming soon.
About the Seated Alternate Knee Extension on Chair
The Seated Alternate Knee Extension on Chair is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.
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