Your feet hit the ground 1,500-2,000 times per mile.

Each impact delivers 2-3 times your body weight through a small area.

Weak feet and ankles can't handle this demand. The result: plantar fasciitis, Achilles tendinitis, shin splints, and more.

Here's how to build strength from the ground up.

Why Lower Leg Strength Matters

The Impact Problem

Running forces:

• 2-3x body weight per stride
• 1,500-2,000 strides per mile
• Cumulative load measured in tons per run

What absorbs this:

• Foot arch (needs intrinsic muscle support)
• Ankle joint (needs stability)
• Calf muscles (need strength and flexibility)
• Achilles tendon (needs load tolerance)

Weakness Consequences

Why Running Alone Isn't Enough

Running loads the lower leg but doesn't comprehensively strengthen it. Specific muscles remain weak:

• Foot intrinsics (rarely challenged by cushioned shoes)
• Ankle evertors/invertors (mostly sagittal plane running)
• Tibialis posterior (undertrained in most runners)

Targeted exercises fill these gaps.

Foot Intrinsic Exercises

Short Foot Exercise (Foot Doming)

Purpose: Strengthen arch-supporting muscles.

Sets/Reps: 3 x 10 per foot, 5-second holds

How:

1. Sit with foot flat on floor
2. Without curling toes, draw ball of foot toward heel
3. Create an arch dome
4. Hold 5 seconds
5. Release fully

Technique cues:

• Toes stay flat on ground
• Only the arch lifts
• Feel the muscles under your arch working
• This is subtle - no visible toe gripping

Progression: Standing, then single-leg stance.

Toe Yoga

Purpose: Develop independent toe control.

Sets/Reps: 2 x 10 per movement

How:

1. Sit with foot flat
2. Lift big toe while pressing other toes down
3. Hold 3 seconds, release
4. Press big toe down while lifting other toes
5. Hold 3 seconds, release

Technique cues:

• This is hard at first - that's the point
• Control improves with practice
• Work both feet simultaneously or separately

Towel Scrunches

Purpose: Strengthen toe flexors and arch muscles.

Sets/Reps: 3 x 15 scrunches per foot

How:

1. Place towel flat on floor
2. Sit with foot on towel
3. Scrunch towel toward you using toes
4. Release and repeat
5. Complete full towel length

Technique cues:

• Use toes actively, not whole foot
• Feel arch muscles engaging
• Keep heel on ground

Progression: Add weight to far end of towel.

Marble Pickup

Purpose: Fine motor control of toe flexors.

Sets/Reps: 2 x 10 pickups per foot

How:

1. Scatter marbles (or small objects) on floor
2. Pick up one marble at a time with toes
3. Transfer to a cup
4. Use different toes

Technique cues:

• Focus on control, not speed
• Works well with golf balls, small stones
• Great for developing dexterity

Toe Spreading

Purpose: Strengthen toe abductors (often neglected).

Sets/Reps: 3 x 10, 5-second holds

How:

1. Sit with foot flat
2. Spread all toes apart as far as possible
3. Hold 5 seconds
4. Release

Technique cues:

• Space should appear between each toe
• Harder than it sounds for most people
• Improves foot splay during running

Ankle Stability Exercises

Single-Leg Balance

Purpose: Foundation ankle stability.

Sets/Reps: 3 x 30-60 seconds per leg

How:

1. Stand on one foot
2. Maintain balance without excessive wobbling
3. Eyes forward, core engaged
4. Progress to eyes closed

Technique cues:

• Don't lock knee
• Feel small corrections from ankle/foot
• If easy, progress to unstable surface

Ankle Circles

Purpose: Mobility plus controlled movement.

Sets/Reps: 2 x 10 each direction, each ankle

How:

1. Lift foot slightly off ground
2. Draw circles with big toe
3. Full range of motion
4. Controlled speed
5. Both directions

Technique cues:

• Move from ankle, not whole leg
• Make circles as large as possible
• Feel each position

Heel Walking

Purpose: Strengthen tibialis anterior (front of shin).

Sets/Reps: 3 x 20 meters

How:

1. Walk on heels only, toes pointed up
2. Maintain dorsiflexion throughout
3. Control each step
4. Don't let toes drop

Technique cues:

• Feel burn in front of shin
• Important for shin splint prevention
• Slow and controlled

Toe Walking

Purpose: Strengthen calves in shortened position.

Sets/Reps: 3 x 20 meters

How:

1. Walk on balls of feet
2. Stay as high on toes as possible
3. Don't let heels drop
4. Control each step

Technique cues:

• Maintain height throughout
• Feel calves working
• Keep good posture

Ankle Alphabet

Purpose: Full range ankle mobility and control.

Sets/Reps: 1-2 alphabets per ankle

How:

1. Sit with leg extended
2. Draw each letter of alphabet with big toe
3. Move from ankle only
4. Make letters as large as possible

Technique cues:

• Takes 2-3 minutes per ankle
• Great for mobility and control
• Can do during desk work

Calf Strengthening

Bilateral Calf Raise

Purpose: Foundation calf strength.

Sets/Reps: 3 x 15

How:

1. Stand on edge of stair, heels hanging off
2. Rise onto toes as high as possible
3. Pause at top
4. Lower below stair level (stretch)
5. Full range of motion

Technique cues:

• Slow and controlled (2 up, 2 down)
• Full range - both top and bottom
• Feel calf engagement throughout

Single-Leg Calf Raise

Purpose: Running-specific strength (you run on one leg).

Sets/Reps: 3 x 12-15 per leg

How:

1. Same setup, single leg
2. Other foot hooked behind
3. Full range of motion
4. Control especially on lowering

Technique cues:

• This is the gold standard for runners
• Build to 25 clean reps per leg
• Add weight when 25 is easy

Eccentric Calf Lower

Purpose: Achilles tendon health and strength.

Sets/Reps: 3 x 10 per leg

How:

1. Rise on both feet
2. Transfer weight to one foot
3. Lower slowly over 4-5 seconds
4. Push back up with both feet
5. Repeat

Technique cues:

• Eccentric (lowering) phase is key
• Especially important for Achilles health
• Start with straight knee, then add bent-knee version

Bent-Knee Calf Raise

Purpose: Target soleus muscle (deeper calf).

Sets/Reps: 3 x 12 per leg

How:

1. Single-leg calf raise setup
2. Bend knee 20-30 degrees and hold
3. Perform calf raise in this position
4. Maintain knee bend throughout

Technique cues:

• Bent knee shifts work to soleus
• Feel difference from straight-leg version
• Important for complete calf development

Seated Calf Raise

Purpose: Soleus isolation.

Sets/Reps: 3 x 15

How:

1. Sit with balls of feet on elevated surface
2. Place weight across knees
3. Raise heels as high as possible
4. Lower with control

Technique cues:

• Seated = soleus emphasis
• Can use dumbbell, barbell, or machine
• Full range of motion

Complete Routine

Quick Routine (10 minutes)

For maintenance and pre-run activation.

Full Routine (15-20 minutes)

For dedicated strengthening sessions.

Frequency

Minimum: 3 times per week

Optimal: 4-5 times per week

Duration: 10-20 minutes per session

Progression Schedule

Weeks 1-2: Foundation

• Bodyweight only
• Master technique
• Focus on feeling target muscles
• Short foot exercise is priority

Weeks 3-4: Building

• Increase reps
• Add balance challenges (eyes closed, unstable surface)
• Focus on single-leg calf raise form
• Introduce eccentric calf work

Weeks 5-6: Loading

• Add weight to calf raises (dumbbell, weighted vest)
• Progress balance to eyes closed, unstable surface
• Increase eccentric duration (slower lowers)
• Build toward 25 single-leg calf raises

Weeks 7+: Maintenance and Progression

• Continue 3x per week
• Progressive overload on calf raises
• Maintain intrinsic and balance work
• Reduce volume if running volume increases significantly

Integration with Running

Best Timing

After easy runs: Muscles warm, good blood flow.

Rest days: Standalone session.

Before strength training: As activation.

Avoid

Before hard workouts: Pre-fatigued lower legs alter mechanics.

When injured: See professional for modifications.

Injury-Specific Focus

Plantar Fasciitis Prevention/Recovery

Emphasize:

• Short foot (3x daily)
• Towel scrunches
• Eccentric calf work
• Toe spreading

Achilles Tendinitis Prevention/Recovery

Emphasize:

• Eccentric calf lowers (primary treatment)
• Single-leg calf raises (progressive loading)
• Both straight and bent-knee versions
• See dedicated guide

Shin Splints Prevention

Emphasize:

• Heel walking
• Toe walking
• Ankle stability work
• Calf flexibility

Strong feet and ankles are non-negotiable for runners. Ten to fifteen minutes, three to four times per week. The exercises are simple; the payoff is significant. Build from the ground up and your running builds on a solid foundation.

Track your progress with our Training Log.