21- energy expenditure methods

In indirect calorimetry, an rq <0.8 may indicate… and rq<0.7 may indicate

RQ < 0.8 may indicate undernutrition.

RQ < 0.7 suggests starvation, high-fat diets, or alcoholism.

how do we measure bmr

Postabsorptive state (12-18 hours after food intake). Performed in a thermoneutral environment. Requires complete relaxation for at least 30 minutes.

what is TEFs Contribution to Energy Expenditure?

abt 10% above the bmr

highest to lowest Thermic Effect by Macronutrient

protein (20-30%)

carbs(5-10%)

fat(0-5%)

what is hypothermia and what r the effects?

Hypothermia = medical emergency; body temp. <35°C

metabolic processes are slowed down

→ fatigue, disorientation, depression of heart/lung activity

what is hyperthermia?

Hyperthermia/heatstress;bodytemp.>37.5°C