Episode 285: Some News, Some Tears, & a Discussion on Red-S with Physical Therapist Cat Fitzgerald.

Episode 285: Some News, Some Tears, & a Discussion on Red-S with Physical Therapist Cat Fitzgerald.

July 9, 2026 · 50 min

About this episode

The episode features a discussion on underfueling and RED-S with physical therapist Cat Fitzgerald.

After a big announcement and a conversation about recent races, we welcome Cat Fitzgerald, PT, of Custom Performance in New York City , for an important discussion about underfueling, Relative Energy Deficiency in Sport (RED-S), and injury risk in runners. Cat explains how insufficient energy intake can affect recovery, bone health, hormones, performance, and the body’s ability to withstand training. They discuss signs that a runner may be underfueling, why RED-S is not limited to athletes in a particular body type or at a particular level, and how runners can better support their training through adequate nutrition and recovery. Cat Fitzgerald is a physical therapist with Custom Performance, a New York–based practice that helps athletes return to sport, build resilience, and stay healthy through individualized physical therapy and performance care. Learn more about Custom Performance at customperformancept.com.

People in this episode

Hosts: Lisa Levin, Julie Sapper

Guest: Cat Fitzgerald

Topics covered

Keywords

Mentioned in this episode

Organizations: Custom Performance

Places: New York City

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