Basal Energy Expenditure

What factors influence daily energy needs? Total energy expenditure includes:

  1. Basal metabolic rate. This reflects the energy the body needs for basic functions while at rest. 
  2. Dietary-induced thermogenesis, or the thermic effect of food. This is the energy the body needs to digest and absorb food. 
  3. The thermic effect of activity. This is the most variable as it reflects the energy needed for physical activity.  For sedentary individuals this could be as low as 15% of total energy expenditure but for athletes it could be as high as 80%.  

For more on this article, please click Barbara Bushman, Ph.D., FACSM