Our energy expenditure consists of basal metabolic rate, thermic effect of food, non-exercise activity energy expenditure and exercise energy expenditure. Basal metabolic rate is affected by body size, gender, age and some illnesses. A larger body expends more energy, and basal metabolic rate decreases while we age. Moreover, thermic effect of food is the energy expended to digest food, and is rather constant at 10% of total daily energy expenditure. During daily life we cannot considerably affect our basal metabolic rate and thermic effect of food directly with our behavior.
This blog post explains what technological differences in the Fibion device provide it considerably better starting point for accurate energy expenditure estimation than other devices on the market (be it consumer or research device). Moreover, we show the same in numbers based on a validation study.