Hip CARs (Controlled Articular Rotations)
Controlled Articular Rotations move the hip through its complete range of motion under tension, simultaneously improving mobility and building strength at end ranges. CARs are a Foundation Training and FRC principle for maintaining joint health.

How to do it
- 1
Stand beside a wall or chair and hold it lightly for balance.
- 2
Lift your right knee up toward your chest, keeping your standing leg slightly bent.
- 3
Rotate the knee outward to the side, then sweep it back behind you in a big arc.
- 4
Complete the circle by bringing the knee forward again. This is one forward CAR.
- 5
Reverse direction for one backward CAR. Move as slowly as possible, 5 to 8 seconds per full rotation.
Easier option
If balancing on one leg is shaky, hold a wall or sturdy chair firmly and move through a smaller arc. Quality of the circle beats the size of it.
Benefits
- Explores and expands the full available range of the hip joint
- Builds strength and control at end ranges of hip motion
- Reduces hip stiffness and joint degeneration risk with daily practice
Common mistakes
- Moving too fast and using momentum instead of active muscular control
- Allowing the pelvis to tilt or rotate during the movement
- Using the support to compensate for poor balance rather than just for light stability
Target areas
Good for
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