TRX to Metabolic Health: GLP-1s, Movement & the Future of Fitness

In this episode of The TRX Podcast, host Nathan D’Rozario sits down with Lisa Witzlib—former TRX facility owner turned Nurse Practitioner—to explore the intersection of fitness, clinical practice, and metabolic health.

Lisa shares her journey from leading one of Atlanta’s most respected TRX studios to launching her own medical practice focused on metabolic wellness. Together, they unpack the rising popularity of GLP-1 medications like Ozempic and Wegovy, the critical role of exercise in supporting long-term health outcomes, and why fitness professionals are more important than ever in today’s healthcare landscape.

Whether you're a coach, clinician, or curious about how movement can complement medical interventions, this episode is packed with insight, challenge, and inspiration.

🔗 Topics include:

• Lisa’s transition from TRX coach to healthcare provider

• What GLP-1s are and how they work

• The physical toll of GLP-1 medications—and how exercise helps

• Muscle loss, metabolic health, and strength training

• The future role of fitness professionals in clinical care

  
  

💛 A huge thank you to our sponsors who support The TRX Podcast and the wider TRX community:

• Wattbike – Precision indoor cycling designed for data-driven training and peak performance. -

  https://wattbike.com/

  
  

• Myzone – Wearable heart rate technology that builds accountability and community through effort-based tracking.

  https://www.myzone.org/

  
  

• Lyfelinez – Clean, science-backed hydration and energy supplements that fuel active lifestyles.

  https://lyfelinez.com/

  
  

• Hyperice – Industry-leading recovery tools like the Hypervolt and Normatec, trusted by athletes and pros worldwide.

  https://hyperice.com/en-GB/