Prof Keith Baar is a molecular exercise physiologist with a specific interest in the response of the musculoskeletal system to nutrition and loading as a function of age. Prof Baar’s laboratory has made seminal discoveries in the molecular response of muscle to endurance and strength. These studies and others have shown the laboratory’s ability to generate, and maintain knockout mice and rats, study muscle, tendon and ligament function, measure molecular targets, and determine the functional outcomes of age, diet, and exercise.