The Impact of Low Energy Availability on Nonexercise Activity Thermogenesis and Physical Activity Behavior in Recreationally Trained Adults. - Martin, Alexandra; Hofmann, Hande; Drenowatz, Clemens; Wallmann-Sperlich, Birgit; Sperlich, Billy; Koehler, Karsten (International Journal of Sport Nutrition & Exercise Metabolism, 2021)