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
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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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