Every step, cut, swing, and landing you make passes through one joint, and whether you’re rallying on the pickleball court, finishing a spring 5K, teeing off on Saturday morning, or sliding into second in your adult softball league, most people never give their ankles a second thought until something goes wrong.
Ankle instability is one of the most common and most undertreated issues we see at Therapeutic Associates. For many people, it starts with a single sprain that healed “well enough” and ends with a pattern of recurring rolls, nagging weakness, and the quiet but real erosion of athletic confidence. That cycle is not inevitable, and it is not something you have to just manage. With the right approach to strength, stability, and neuromuscular control, ankles can be genuinely bulletproof.
Why ankle instability slows you down (even when it doesn’t hurt)
Most people think of ankle problems in terms of injury: a sprain, a roll, a twist. But ankle instability is equally a performance issue, one that quietly limits force, speed, and efficiency in athletes and impacts all of us regardless of age or activity level.
Force Transfer. A stable ankle is the final link in your lower-body kinetic chain. Every ounce of effort generated by your hips and legs has to travel through the ground and return back up through your body. A weak or unstable ankle leaks that energy, quietly reducing efficiency in everything from a morning walk and a round of golf to a trail run or a rec league game.
Proprioception and Reaction Time. Your ankle is loaded with proprioceptive nerve endings — sensors that tell your brain precisely where your body is in space and how to react in real time. After a sprain, research shows this sensory signaling is significantly disrupted. That disruption doesn’t fix itself without targeted rehab, which is why re-sprain rates are so high in the first two years after an initial injury. The ankle that “feels fine” may still be reacting too slowly to protect you.
Injury Prevention Up the Chain. When the ankle isn’t doing its job, the knee, hip, and low back compensate, and compensations lead to pain and create vulnerability. Strong, stable ankles don’t just protect themselves; they protect everything above them.
5 key exercises to build ankle strength & stability
These exercises can be done as part of a warm-up, a cool-down, or as dedicated accessory work. They work whether you’re coming back from a sprain, dealing with chronic instability, or simply want to build a more resilient foundation.
Watch all five exercises here, then use the written cues to guide you when you’re doing them on your own.
1. Banded Fibularis Longus/Brevis Strengthening (Eversion with Resistance Band)
Purpose: Directly strengthen the fibularis muscles along the outer lower leg, the primary muscles responsible for preventing your ankle from rolling inward.
How to do it:
- Sit with your legs extended. Loop a light resistance band around the ball of your foot, anchoring the other end to something fixed (or holding it with your opposite hand).
- Slowly turn the sole of your foot outward against the band’s resistance (eversion), then return with control.
- Perform 15–20 slow, controlled reps per side.
- As strength builds, increase band resistance.
Sport Benefit: Essential for anyone with a history of lateral ankle sprains. Rebuilds the active restraint system that bracing alone cannot replace.
2. Banded Posterior Tibialis Strengthening (Inversion with Resistance Band)
Purpose: Directly strengthen the posterior tibialis muscle along the inner lower leg.
How to do it:
- Sit in a figure four position. Loop a light resistance band around the ball of the foot of the top most leg, anchoring the other end under your planted foot
- Slowly turn the sole of your foot upward against the band’s resistance (inversion), then return with control.
- Perform 15–20 slow, controlled reps per side.
- As strength builds, increase band resistance.
Sport Benefit: Essential for promoting overall ankle strength and stability, as well as contributing to arch strength.
3. Single-Leg Balance Progression
Purpose: Rebuild proprioception and neuromuscular control — the communication system between your ankle and your brain that a sprain disrupts.
How to do it:
- Stand on one foot on a firm surface. Hold for 30-60 seconds, maintaining a slight bend in your knee.
- Progress to eyes closed — removing visual input forces the ankle’s sensors to work harder.
- Further progress to a folded towel or balance pad beneath your foot to introduce a mildly unstable surface.
- Complete 3 sets of 30-60 seconds on each side.
Sport Benefit: Improves reactive stability for cutting sports (soccer, basketball, lacrosse), trail running, and any activity on uneven ground.
4. Single-Leg Heel Raise with a Pause
Purpose: Build calf and ankle strength for push-off power, landing control, and the end-range stability that prevents sprains at the top of a step or the bottom of a descent.
How to do it:
- Stand on one foot near a wall for balance support if needed.
- Slowly rise onto the ball of your foot as high as you can, then pause at the top for 2 seconds.
- Lower with full control — the descent is as important as the rise.
- Perform 3 sets of 12–15 reps per side.
Sport Benefit: Builds the calf-ankle complex needed for running efficiency, jumping and landing mechanics, and stair/hill work. A weak calf is a common hidden contributor to ankle instability.
5. Stride Stance Soleus Heel Raise
Purpose: Build calf and ankle strength and stability, for endurance activities.
How to do it:
- Begin in a stride stance position with a slight bend to your knees, and most of your weight on the front foot. This can be done near a wall for balance support if needed.
- While keeping your knees bent, slowly rise onto the ball of your foot as high as you can, then pause at the top for 2 seconds.
- Lower with full control — the descent is as important as the rise.
- Perform 3 sets of 12–15 reps per side.
Sport Benefit: Builds the calf-ankle complex needed, but isolating the soleus muscle, which is important for endurance activities and high impact loading.
Can physical therapy help with ankle instability?
Physical therapy plays a critical role in ankle recovery and performance, whether you’re dealing with a fresh sprain, a chronic instability pattern, or simply trying to move better and prevent future injury.
- Injury Prevention
- Screening and movement assessment to identify instability, weakness, or faulty movement patterns before they become injuries.
- Education on proper landing mechanics, footwear selection, and training load management.
- Preventative programming for athletes at high re-sprain risk, including sport-specific balance and agility work.
- Restoring Strength & Mobility
- Manual therapy to address stiffness and restore normal joint mechanics after a sprain (joints often become restricted even after soft tissue healing).
- Targeted fibularis, calf, and intrinsic foot strengthening to rebuild active ankle support.
- Flexibility work for the calf and Achilles complex, which directly affects ankle dorsiflexion and loading mechanics.
- Enhancing Performance
- Proprioceptive and neuromuscular retraining to restore the ankle’s sensory-motor system.
- Plyometric progressions and sport-specific agility drills tailored to your activity.
- Movement efficiency work to reduce energy leak at the ankle during running, jumping, and cutting.
- Injury Recovery & Return to Sport.
- Graduated loading protocols after acute sprains to guide tissue remodeling and prevent chronic instability from developing.
- Progressive return-to-cutting, running, and jumping programs with objective milestones.
- Load management education so you can train smart during recovery without losing fitness.
Bulletproof Ankles. Unstoppable Movement.
Don’t let a chronic ankle problem become your performance ceiling. Whether you’re dealing with a history of recurring instability, or simply want a stronger foundation for the sport or activity you love, our physical therapists can assess your ankle stability and build a personalized plan to keep you moving at your best.
