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MET: The ratio of the work metabolic rate to the resting metabolic rate. One MET is defined as 1 kcal/kg/hour and is roughly equivalent to the energy cost of sitting quietly. A MET also is defined as oxygen uptake in ml/kg/min with one MET equal to the oxygen cost of sitting quietly, equivalent to 3.5 ml/kg/min.
VO 2 is measured in METs (mL/kg/min). One MET, which is equal to 3.5 mL/kg per minute, is considered to be the average resting energy expenditure of a typical human being. One MET, which is equal to 3.5 mL/kg per minute, is considered to be the average resting energy expenditure of a typical human being.
It means that energy of glucose expended by 1 L of oxygen equates to 0.00744 mole x 677 Kcal/mole or 4.96 Kcal, or about 5 Kcal/L O2. To convert 3.5 mL O2 to Kcal, divide by 1,000 mL/L and multiply by 5 Kcal/L. To convert from min to h, multiply by 60. The rounded off result is 1 Kcal/Kg/h. Clean Jordan Lake 22:41, 6 February 2017 (UTC)
For example, following analysis of oxygen consumption of a human subject, if 5.5 kilocalories of energy were estimated during a 5-minute measurement from a rested individual, then the resting metabolic rate equals = 1.1 kcal/min rate.
V̇O 2 max (also maximal oxygen consumption, maximal oxygen uptake or maximal aerobic capacity) is the maximum rate of oxygen consumption attainable during physical exertion. [1] [2] The name is derived from three abbreviations: "V̇" for volume (the dot over the V indicates "per unit of time" in Newton's notation), "O 2" for oxygen, and "max" for maximum and usually normalized per kilogram of ...
Basal metabolic rate (BMR) is the rate of energy expenditure per unit time by endothermic animals at rest. [1] It is reported in energy units per unit time ranging from watt (joule/second) to ml O 2 /min or joule per hour per kg body mass J/(h·kg). Proper measurement requires a strict set of criteria to be met.
Other units still in use worldwide in some contexts are the kilocalorie per gram (Cal/g or kcal/g), mostly in food-related topics, and watt-hours per kilogram (W⋅h/kg) in the field of batteries. In some countries the Imperial unit BTU per pound (Btu/lb) is used in some engineering and applied technical fields. [1]
Metabolic rate (kcal per day) = 1.440 (3.9 VO 2 + 1.1 VCO 2) where VO 2 is oxygen consumption in litres per minute and VCO 2 is the rate of carbon dioxide production in litres per minute. The formula can also be written for units of calories per day where VO 2 is oxygen consumption expressed in millilitres per minute and VCO 2 is the rate of ...