Research Interests: Central control of ventilation and exercise; obesity; obstructive sleep apnea; respiratory muscle mechanics.

Research Topics: Burns; ergonomics of protective clothing; environmental physiology; firefighter health and safety; recovery; thermal stress; work physiology.

Research Topics: Neural controls of energy balance, food reward and motivated behavior.

Research Topics: Heat stress and hydration effects on health and exercise performance; exercise energetics, metabolism, and physiology; lower extremity injury prevention

Research Topics: Environmental physiology, warfighter and worker health and safety

Research Topics: Functional foods and nutraceuticals for modulation of lipid and lipoprotein metabolism.

Research Topics: Caffeine use among adolescents; exercise and nutrition interactions; factors that influence ingestive behavior and the development of obesity in humans.