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Harris College Expert Weighs in on GLP1s and Maintaining Muscle

Posted on September 4, 2026, by Taylor Helmes
A smiling man wearing a light purple TCU polo shirt stands in a clinical research or laboratory setting, holding a tablet with both hands. He has short dark hair, a beard, and wears a watch and necklace. The background is softly blurred, showing computer workstations and monitors, emphasizing the professional healthcare and research environment.
Research by Austin Graybeal ’21 Ph.D., assistant professor of kinesiology in Harris College, was recently published. But his work on GLP-1 medications and the link between muscle loss and fat began back during his time as a doctoral student at TCU, stemming from his dissertation, when he led an early group raising the question of GLP-1 medications and muscle loss (termed fat-free mass loss), several months before the first GLP-1 medication was FDA approved specifically for weight loss.