Seated Knee Extension
Beginner
Expert Advice
Make the lowering phase as deliberate as the lift. Letting your foot drop removes much of the work from this unloaded exercise.
How-to-do Steps
- Sit upright on a box or any sturdy chair with both feet down.
- Rest your hands beside your hips and keep your thighs supported on the seat.
- Straighten one knee, lifting that foot forward until your leg is comfortably straight.
- Bend your working knee to lower your foot while the other foot stays down.
- Complete the prescribed repetitions on this leg, then switch sides.
Common Mistakes
- Lifting your thighFix: keep it resting on the seat so movement comes from your knee.
- Snapping your knee straightFix: ease into extension rather than forcing the joint.
Coach Cues
Thigh stays downStraighten without snappingLower with control
Short reminders to keep in mind during every set.
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Muscles Worked
Seated Knee Extension primarily targets the Quads, with Stretching mechanics using Body Weight. Understanding muscle activation patterns helps you focus on proper engagement and maximize training effectiveness.
Primary
Quads100%
Equipment
Body Weight
Exercise Type
Stretching
Why Level 1?
Beginner
Supported sitting and unloaded knee movement require minimal strength, balance, or coordination.
Technique
Stability
Strength
Mobility
Impact
Learning
Sets & Reps Guidance
Beginner3 x 12-15
Intermediate3 x 15-20
Advanced4 x 15-20
Variations
Harder Variation
Frequently Asked Questions
What muscles does Seated Knee Extension work?
Seated Knee Extension primarily targets the Quads. It is classified as a Stretching exercise performed with Body Weight.
How many sets and reps should I do for Seated Knee Extension?
For beginners, start with 3 sets of 12-15. Intermediate lifters can do 3 sets of 15-20. Advanced athletes can push to 4 sets of 15-20. Adjust based on your goals and recovery capacity.
Is Seated Knee Extension suitable for beginners?
Yes, Seated Knee Extension is rated as a beginner-friendly exercise, making it an excellent starting point. Focus on mastering proper form before increasing intensity or load.
What are the most common mistakes when doing Seated Knee Extension?
Lifting your thigh: keep it resting on the seat so movement comes from your knee. Snapping your knee straight: ease into extension rather than forcing the joint.
