19: Navicular Stress Fractures in Runners: Why Foot Pain Lingers and What You Might be Missing

Foot pain that lingers, comes and goes, or never fully heals can signal something more serious especially in runners. Episode 19 of Interdisciplinary Case Miles centers on a high school track athlete dealing with a navicular bone stress injury that persisted for nearly a year.

This type of injury is one of the most challenging in running due to limited blood supply, high biomechanical demand, and the need for strict management early on. This case highlights how bone stress injuries develop from a combination of training load, biomechanics, and nutrition especially low energy availability in adolescent athletes. It also addresses why navicular injuries require careful progression, non-weight bearing phases, and long-term follow-up to avoid delayed healing or recurrence.

You’ll hear how foot mechanics, posterior tibial function, and arch control influence stress at the navicular, along with how strength, mobility, and confidence all play a role in returning to sport. The conversation also emphasizes the importance of fueling, growth demands, and the unique challenges faced by youth and first-generation athletes navigating high training loads.

Whether you’re a runner dealing with stubborn foot pain, a parent supporting a young athlete, or training in high-impact environments like track, trail, or jumping sports, this episode provides clear direction on preventing and managing navicular stress injuries.

00:00 – Intro to Interdisciplinary Case Miles Overview of the podcast and today’s complex case.

01:05 – Case Overview: High School Athlete with Persistent Foot Pain Track athlete with a year-long navicular bone stress injury.

03:10 – What Is the Navicular Bone & Why It Matters Location, function, and role as the “keystone” of the arch.

06:00 – Why Navicular Stress Injuries Are High Risk Limited blood supply and challenges with healing. 09:20 – The Perfect Storm: Load, Biomechanics & Nutrition How multiple factors combine to create bone stress injuries.

12:40 – Low Energy Availability in Young Athletes How underfueling impacts bone health and recovery.

16:30 – Growth, Development & High Calorie Needs Why adolescent runners require more fuel than expected.

20:10 – Practical Fueling Strategies for Busy Athletes Snacking, meal timing, and closing energy gaps.

24:00 – Posterior Tibial Function & Foot Mechanics How pronation control affects stress at the navicular.