How to prevent and treat Achilles tendonitis while running

Achilles tendonitis requires a multi-phase approach combining rest, progressive loading, and biomechanical corrections to restore tendon health

Written by

Shike Virtual Run Team

Published on

July 24, 2023
BlogArticles

The Runner’s Guide to Achilles Tendonitis Prevention & Recovery

Affecting 10-15% of runners, Achilles issues demand targeted rehabilitation to maintain tendon elasticity and prevent chronic degeneration.

3-Phase Rehabilitation Protocol

Acute Phase (0-2 weeks)

  • Relative rest (cross-train if pain-free)
  • Ice massage 5min every 2 hours
  • Compression sleeve during day
  • Night splint in mild dorsiflexion

Recovery Phase (2-6 weeks)

  • Eccentric heel drops (3×15 daily)
  • Soft tissue mobilization
  • Gait retraining if needed

Return-to-Run (6+ weeks)

  • Walk-run progression program
  • Continued strength work
  • Biomechanical assessment

Essential Eccentric Exercises

ExerciseProgressionSets/RepsFrequency
Double-leg heel dropsFlat surface → step3×15Daily
Single-leg heel dropsBodyweight → weighted3×10Every other day
Eccentric slant board30° → 45° incline3×82x/week

Long-Term Prevention Strategies

Biomechanical Adjustments

  • 4-8mm heel-to-toe drop shoes
  • Cadence increase to 170+ steps/min
  • Midfoot strike pattern

Strength & Mobility

  • Calf raises with slow eccentrics
  • Ankle dorsiflexion mobility work
  • Posterior chain strengthening

Red Flags Requiring Medical Attention

  • Morning stiffness >30 minutes
  • Swelling that doesn’t improve
  • Audible “pop” with sudden pain
  • Difficulty walking on tiptoes

Clinical Insight: A 2023 British Journal of Sports Medicine study found runners who completed 12 weeks of eccentric loading reduced Achilles pain by 72% compared to stretching alone.

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