Ankle CARs: A Complete Guide
Quick Intro
Ankle CARs is an ankle mobility drill performed seated on the floor or a bench, lifting one foot slightly off the floor and slowly rotating the ankle through its full range under active muscular control with no momentum. Isolating the movement to the ankle joint alone, without letting the knee or hip help swing the foot through, is what turns this into a strength-through-range drill and not a loose circle.
Equipment Needed
No equipment is required.
Why It Matters
The drill asks the ankle to move through four distinct positions, plantar flexion, inversion, dorsiflexion and eversion, under continuous active control. Because the seated setup removes any weight-bearing demand, the ankle can focus entirely on generating an isolated range without the knee or hip helping the foot along. It works well as a fundamental tool for ankle injury prevention or rehabilitation, since it directly builds control through the range an ankle sprain typically compromises.
When to Do It
Place this early in a session, as preparation for running, jumping, cutting or any activity that asks the ankle to move through a full range under load later on. It also works well as a standalone drill for anyone recovering from an ankle injury or looking to build a stronger baseline of ankle control. Anyone with a diagnosed ankle condition or a recent ankle injury should get clearance from a doctor or physical therapist before working the joint through a full active rotation.
Getting Ready
Sitting on the floor or a bench and lifting one foot slightly off the ground for a moment first confirms the ankle is free to move without any weight passing through it. Trying one slow rotation in each direction is a reasonable way to gauge how much range feels available that day.
Step-by-Step Instructions
- Sit on the floor or a bench and lift one foot slightly off the floor.
- Point the foot into full plantar flexion, moving slowly under active control.
- Rotate into inversion, turning the sole of the foot inward.
- Pull the toes up into dorsiflexion, then rotate into eversion, turning the sole outward.
- Repeat for 3-5 CARs per direction, then switch to the other ankle.
How Many, How Often
| Level | CARs (per direction, per ankle) |
|---|---|
| Beginner | 3 |
| Intermediate | 4 |
| Advanced | 5 |
Keeping the movement isolated to the ankle joint matters more here than how large the circle looks. Letting the knee or hip rotate to assist the foot through the range is what turns an ankle drill into one that borrows range from somewhere else.
Modifications and Variations
Harder: Ankle CARs — Standing. Performing the same rotation while bearing weight through the standing leg adds a balance and stabilization demand on top of the same ankle range, a fair progression once the seated version feels controlled.
Common Mistakes to Avoid
Letting the knee or hip rotate to help the foot along. This is the easiest way to make the ankle’s range look bigger while training the wrong joint. Keeping the knee and hip still isolates the movement to where it’s meant to happen.
Moving too fast through the four positions. A fast circle blurs plantar flexion, inversion, dorsiflexion and eversion into one loose motion instead of hitting each one as a distinct, deliberate position. Slowing the pace down is what makes this a strength-through-range drill.
Skipping the tightest quadrant of the range. It’s easy for the circle to flatten out around whichever direction feels stiffest, avoiding the part of the range that needs the most work. Working through that tight spot, slowly and under control, is where the drill does the most good.
After Your Set
A few gentle ankle pumps in a smaller, relaxed range are a reasonable way to close out a set that just asked the ankle to work actively through its full controlled range.
Going Deeper
The marker of progress here isn’t how big the circle looks, it’s whether all four positions, plantar flexion, inversion, dorsiflexion and eversion, feel equally accessible and equally controlled. Once that balance holds steady across the whole range, the standing version is a reasonable next step, since it adds a weight-bearing balance demand on top of the same rotation. Chasing a bigger circle before every quadrant feels controlled usually just means the tightest direction is being quietly skipped.
How to Know You’re Improving
- All four positions feel similarly accessible, without one direction lagging behind.
- The knee and hip stay still through the entire rotation.
- The range at the tightest quadrant gradually opens up across sessions.
- Both ankles manage a similarly sized, similarly controlled circle.
- The standing version starts to feel like a reasonable next step.
Muscles Worked
- Tibialis Anterior (a muscle along the front of the shin, driving the dorsiflexion phase of the rotation)
- Gastrocnemius (the larger, more visible calf muscle, driving the plantar flexion phase)
- Soleus (the deeper calf muscle beneath the gastrocnemius, also active through the plantar flexion phase)
FAQ
Why does this need to be active rather than a passive ankle circle done by hand? Rotating the ankle actively, under the foot’s own muscular control, builds strength through the range rather than just passively moving the joint through positions it isn’t generating on its own. That active control is what makes this a CARs drill.
How does this drill help with ankle injury prevention? It rehearses the ranges, particularly inversion and eversion, that a typical ankle sprain compromises, building active control through those positions before an unplanned, uncontrolled version of the same range happens during activity. That overlap is why it is often used in ankle rehabilitation.
Is this the same as the standing version of ankle CARs? Related but different, since the standing version adds a weight-bearing balance demand from the standing leg on top of the same rotational range, while this seated version isolates the ankle rotation with no weight involved at all. Both target the same range, just under different demands.
Is some resistance felt at the extreme ends of certain directions normal? Yes, feeling resistance as the ankle approaches its natural end range in a stiffer direction, often eversion, is common, and it typically eases with repeated, controlled practice. A sharp or catching sensation is different and worth mentioning to a doctor or physical therapist.
Can this be done daily, especially during ankle rehab? Yes, since it’s a slow, zero-impact, zero-load drill, making it reasonable to include daily, particularly as part of a structured return from an ankle injury under appropriate guidance.
Related to Ankle CARs — Standing, the harder weight-bearing version.