Before I ever put on a pair of barefoot shoes, I spent six weeks doing nothing but foot exercises. Toe spreads in the morning. Marble pickups while watching TV. Single-leg balance drills before every run. It felt absurd. It also meant I transitioned to minimal footwear with zero injuries — while runners who skipped this step spent months nursing Achilles and plantar fascia problems.
If you want to strengthen your feet for barefoot shoes, this is the program I use and the one I give every client before they ditch their cushioned trainers. It takes six weeks. It requires no gym. And it will fundamentally change how your feet function.
Why Foot Strength Matters
Modern footwear is, in many ways, a prosthetic device. Arch support replaces the intrinsic muscles of the foot. Heel cushioning eliminates the need to load the calf and Achilles correctly. Motion control prevents the natural pronation that distributes force across the entire foot. The shoe does the job the foot was built to do.
The result: most adults have chronically weak feet. The intrinsic muscles — the 19 small muscles within the foot itself — atrophy from disuse. The plantar fascia tightens. The toes lose their ability to splay and grip. The arch becomes a passive structure instead of an active spring.
When you put on barefoot shoes without addressing this, you’re asking weak muscles to suddenly carry full load. That’s how injuries happen. The Achilles gets overloaded because the calf isn’t conditioned. The plantar fascia flares because the arch muscles aren’t ready to work. Metatarsals bruise because the forefoot hasn’t learned to absorb impact.
Six weeks of targeted foot strengthening changes the equation. You build the capacity before you demand it.
The 6 Exercises
1. Toe Spreading
What it does: Activates the abductor hallucis and the muscles that control independent toe movement. Most people have lost the ability to spread their toes voluntarily — this exercise restores it.
How to do it: Sit or stand barefoot. Try to spread all five toes as wide as possible, then bring them together. Hold the spread position for 3 seconds. Do 15 reps per foot.
Progression tip: In the first week, you may find you can barely move your toes independently. That’s normal. By week three, you should have noticeably more control. By week six, you’ll be able to lift just your big toe while keeping the others down — a useful test of intrinsic strength.
2. Marble Pickups
What it does: Develops grip strength and dexterity in the toes, strengthening the flexor digitorum brevis and the lumbricals.
How to do it: Place 10–15 marbles (or small stones, or balled-up socks) on the floor. Pick them up one at a time using only your toes and transfer them to a cup or bowl. Do this with each foot.
Why it works: The grasping motion engages the same toe-flexor muscles used during the push-off phase of running. Barefoot running demands that these muscles work — marble pickups build exactly that capacity.
3. Calf Raises (Single-Leg)
What it does: Strengthens the gastrocnemius and soleus — the primary muscles stressed during barefoot running. Also builds Achilles tendon resilience.
How to do it: Stand on one foot near a wall for balance (don’t lean on it). Slowly rise onto the ball of your foot over 3 seconds, hold for 1 second at the top, then lower over 3 seconds. Do 3 sets of 15 per leg.
Critical form note: The descent is the important part. Eccentric loading (the controlled lowering) is what builds tendon resilience. Don’t rush it. A resistance band around the ankles can add intensity once the basic movement feels easy.
4. Single-Leg Balance
What it does: Trains proprioception and the stabilizing muscles of the ankle and foot. Essential for the dynamic balance demands of barefoot running.
How to do it: Stand on one foot with a soft knee (not locked). Hold for 30 seconds. Progress to: eyes closed, then standing on a folded towel, then on a balance board.
Why it matters: On every barefoot stride, your foot lands on an unpredictable surface and must stabilize instantly. This exercise trains the neural pathways that make that stabilization automatic.
5. Towel Scrunches
What it does: Isolates the toe flexors and the plantar intrinsics — the muscles that support the arch from below.
How to do it: Place a small towel flat on the floor. Using only your toes (no ankle movement), scrunch the towel toward you, gathering it under your foot. Then spread it back out. Do 3 sets of 20 scrunches per foot.
When to do it: This is an easy exercise to do while seated at a desk or watching TV. Many of my clients make it a daily habit independent of the formal program.
6. Short Foot Exercise
What it does: This is the king of foot strengthening. The short foot exercise directly activates the intrinsic muscles that create and maintain the arch — the same muscles that do the work barefoot shoes require.
How to do it: Sit or stand barefoot. Without curling your toes, try to shorten the length of your foot by pulling the ball of the foot toward the heel. You’re doming the arch — creating a “short foot” shape. Hold for 5 seconds, release. Do 10 reps per foot.
This is harder than it sounds. Most people accidentally curl their toes. Place your fingers on the arch to feel if the muscles are actually engaging. A massage ball rolled under the foot for 60 seconds before this exercise wakes up the fascia and makes engagement easier.
Week-by-Week Progression
Week 1–2: Foundation
Focus on learning the movements, not the reps. Form matters more than volume here.
- Toe spreading: 2 sets × 10 reps, twice daily
- Marble pickups: 1 set per foot, daily
- Single-leg balance: 3 × 20 seconds per foot
- Towel scrunches: 2 sets × 15 reps, daily
- Short foot: 2 sets × 8 reps per foot
- Calf raises: 2 sets × 10 reps (both legs, not single-leg yet)
Week 3–4: Building Volume
Increase reps and introduce single-leg loading.
- Toe spreading: 3 sets × 15 reps, twice daily
- Marble pickups: 2 sets per foot, daily
- Single-leg balance: 3 × 30 seconds, add eyes-closed variation
- Towel scrunches: 3 sets × 20 reps, daily
- Short foot: 3 sets × 10 reps per foot, standing
- Single-leg calf raises: 3 × 12 reps per leg
Week 5–6: Integration
Add dynamic elements and introduce light barefoot shoe use.
- All exercises at full volume (Week 3–4 reps)
- Single-leg balance on balance board: 3 × 30 seconds
- Single-leg calf raises: 3 × 15 reps with slow 3-second eccentric
- Begin wearing barefoot shoes for 20–30 minutes of daily walking
- Short runs in barefoot shoes: 10–15 minutes, every other day
Signs You’re Ready for Barefoot Running
Don’t rush to the roads until you can do all of the following:
- Single-leg balance with eyes closed for 30 seconds — no wobbling, no toe-gripping
- 15 single-leg calf raises with a slow 3-second descent — no pain, no Achilles sensitivity
- Spread your toes independently — you should be able to lift your big toe while keeping the others down
- Walk barefoot on gravel for 5 minutes without discomfort — your plantar fascia should handle irregular surfaces without protest
- No foot pain after 30 minutes in barefoot shoes — soreness is fine, pain is not
If you can pass all five, your feet are ready. Start with the Xero HFS or Vivobarefoot and build mileage gradually — no more than 10% weekly increase in barefoot shoe mileage.
The Long Game
Most runners who transition successfully don’t look back. After eight years of barefoot running, I have stronger feet at 38 than I did at 28 in motion-control trainers. My arch has deepened. My toes spread naturally on every landing. My Achilles has never given me trouble since I built the strength to use it correctly.
Six weeks of foot work is a small investment for a lifetime of better movement. Do the exercises. Build the foundation. Then let your feet do what they were designed to do.
— Riley, minimalist movement coach, 8 years barefoot running