Exercise guide
Circles Knee Stretch
- Beginner
- Isolation
- Timed hold
- Hips
- Lower legs
This dynamic mobility exercise improves knee joint lubrication and flexibility in the surrounding tendons and muscles, specifically targeting the calves and quadriceps. It serves as an effective warm-up to enhance joint health and range of motion before lower-body training.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand with your feet together and knees slightly bent.
- Lean forward and place your hands lightly on your kneecaps or just above the knees for support.
- Maintain a flat back and keep your gaze directed slightly forward to ensure a neutral spine.
How to do it
- Rotate your knees in a slow, controlled circular motion, moving them forward, to the side, back, and to the other side.
- Exhale as you push the knees forward into the deepest part of the stretch, and inhale as you circle them back.
- Perform the movement for the prescribed repetitions in a clockwise direction, then reverse to counter-clockwise.
- Maintain a steady, rhythmic tempo, ensuring the transition between directions is smooth.
Form checklist
- Keep your feet planted firmly and flat on the floor throughout the entire rotation.
- Avoid locking your knees out aggressively at the back of the circle.
- Ensure the movement comes from the knees and ankles, not by swinging the hips excessively.
- Use your hands for guidance and balance, rather than pressing down hard on the joint.
Pro tips
- Focus on the weight shifting across the edges of your feet to simultaneously mobilize the ankles and engage the calves.
- Start with small circles and gradually increase the diameter as the joint feels warmer and more lubricated.
Make it harder
- Perform the exercise with a wider-than-shoulder-width stance to target the medial and lateral stabilizers of the knee.
- Slow the tempo down significantly to increase the time under tension for the quadriceps and improve balance.
Frequently asked
- What muscles does the circles knee stretch work?
- The circles knee stretch primarily targets the calves and quadriceps, and also works the glutes and hip flexors as secondary muscles.
- What equipment do you need for the circles knee stretch?
- The circles knee stretch requires no equipment — just your body weight.
- Is the circles knee stretch good for beginners?
- Yes. The circles knee stretch is a beginner-friendly movement and a strong foundation to build on.
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- Alternate Forward Step Arm SwingIntermediate · calves, glutes, and quadriceps
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- Barbell Band Assisted DeadliftIntermediate · calves, glutes, hamstrings, quadriceps, and trapezius