What New Science Says About Building Muscle | Brad Currier, PhD

Resistance training is one of the most powerful interventions for preserving muscle, supporting metabolic health, and promoting healthy aging—but many patients still find it intimidating or confusing. In this episode, Dr. Kara Fitzgerald sits down with exercise physiologist Brad Currier, PhD, to unpack the newly updated ACSM resistance training guidelines and discuss practical approaches for prescribing exercise across the spectrum, from sedentary adults to elite athletes.

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In partnership with Timeline, they also review the latest clinical research on Urolithin A, mitochondrial function, muscle recovery, protein, and creatine, offering actionable insights for functional medicine practitioners.

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Full show notes + references: https://www.drkarafitzgerald.com/fxmed-podcast/

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GUEST DETAILS

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Dr. Brad Currier is Manager of Clinical Trials at Timeline, a Swiss biotech company at the forefront of longevity science for over 15 years. With a background in elite athletics, he went on to earn a PhD in muscle physiology, where his research focused on how exercise and nutrition influence aging and performance.

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Brad has led numerous clinical trials conducted around the world and published extensively in peer-reviewed journals. He is also the lead author of the American College of Sports Medicine’s new position stand on resistance training prescription, helping shape global guidelines for strength training and healthy aging.

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