Zack Sapinsley PT, DPT, EMT, MSc, AIB-VRC
Running is one of the simplest and most accessible forms of exercise. You lace up your shoes, head out the door, and move. Yet despite its simplicity, running has one of the highest injury rates of any recreational sport; studies show that up to 80% of runners experience an injury each year.
As physical therapists (and runners ourselves), we see the same patterns over and over again: predictable injuries caused by predictable breakdowns, which are often preventable with the right approach.
In this article, we break down the most common running injuries, explain why runners get hurt, and share the evidence-based strategies that can help keep you on the road, trail, or track long-term.
Why Do Runners Get Injured?
Most running injuries are not freak accidents. They’re the result of repetitive stress that exceeds the body’s current capacity. Major contributors include:
1. Training Errors
Rapid increases in mileage, speed, or intensity, especially without adequate recovery, are one of the biggest causes of injury.
2. Biomechanical Factors
Stride length, cadence, hip control, and joint loading patterns all influence how stress is distributed through the body.
3. Strength & Capacity Limitations
Running is a strength-demanding activity. Weak hips, calves, or core muscles reduce shock absorption and increase tissue strain.
4. Footwear & Terrain Changes
Switching shoes, surfaces, or terrain too quickly (road to trail, flat to hills) alters loading patterns and raises injury risk.
5. Life Stress, Sleep, and Nutrition
Poor sleep, inadequate fueling, and high life stress reduce recovery capacity, making even normal training loads feel excessive.
Common Running Injuries
1. Patellofemoral Pain Syndrome (Runner’s Knee)
- Symptoms: Achy pain around or behind the kneecap, worse with stairs, hills, and prolonged sitting.
- Contributors: Hip weakness, decreased quad strength, low cadence, excessive knee valgus.
- Treatment: Hip + quad strengthening, cadence adjustments, load management.
2. Iliotibial Band Syndrome (ITB Syndrome)
- Symptoms: Sharp pain on the outside of the knee, often during downhill running.
- Contributors: Hip stability deficits, high mileage, rapid increases in downhill volume.
- Treatment: Glute strengthening, stride retraining, load control.
3. Achilles Tendinopathy
- Symptoms: Stiffness or pain in the Achilles, especially in the morning.
- Contributors: Low calf strength, sudden increase in speed work or hills, limited ankle mobility.
- Treatment: Progressive calf strengthening, gradual loading.
4. Plantar Fasciitis
- Symptoms: Heel or arch pain, especially with first steps in the morning.
- Contributors: Weak calves, tight fascia, rapid volume increases, worn-out shoes.
- Treatment: Calf strengthening, foot intrinsic training, mobility work.
5. Medial Tibial Stress Syndrome (Shin Splints)
- Symptoms: Pain on the inner shin during or after runs.
- Contributors: Overstriding, abrupt training increases, and hard surfaces.
- Treatment: Strengthening, cadence changes, and gradual volume increases.
6. Hamstring or Gluteal Tendinopathy
- Symptoms: Pain at the sit bone (proximal hamstring) or outer hip (gluteal tendon).
- Contributors: Speed work without adequate strength, hill running, prolonged sitting.
- Treatment: Strengthening, progressive loading.
7. Bone Stress Injuries
- Symptoms: Persistent localized pain with running.
- Contributors: Low energy availability, high volume, and rapid progression.
- Treatment: Load modification, nutrition evaluation, and gait assessment.
Evidence-Based Injury Prevention for Runners
1. Strength Training 2–3x/week
Prioritize hips, calves, quads, hamstrings, and core.
2. Gradual Load Progression
Increase mileage, speed, and intensity systematically, not all at once.
3. Running Form Optimization
Small changes in cadence or stride mechanics can significantly reduce tissue stress.
4. Appropriate Footwear
Shoes should match your running style, terrain, and current training demands.
5. Sleep, Recovery, and Nutrition
Your body adapts during recovery, not during the run itself.
When Should a Runner See a Physical Therapist
Consider seeing a physical therapist if:
– You want help optimizing any of the above!
– Pain lasts more than 1–2 weeks
– Pain changes your gait
– Pain reduces your running volume or intensity
– Recurrent flare-ups occur
Evolution Physical Therapy and Fitness specializes in running gait analysis, individualized rehabilitation, and performance optimization. Our RunSmart Running & Movement Analysis provides an in-depth assessment led by a Doctor of Physical Therapy to help you run stronger, faster, and pain-free. Schedule your RunSmart assessment today and keep running for the long haul!
Take a look at our Run Series:
Part 1:Â The Anatomy of Running: Understanding the Biomechanical Demands
