Mets

Mets

MET

A class for instantiating a MET from the Compendium of Physical Activities. Attributes are:

• code
• value
• description

The Metabolic Equivalent of Task (MET), or metabolic equivalent, is a measure expressing the energy cost of physical activities. METs are defined as the ratio of metabolic rate (and therefore the rate of energy consumption) during a specific physical activity to a reference 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.

1 MET = 1kcal/kg*h = 4.184 kJ/kg*h = 1.162 W/kg

METs()

A class for instantiating 831 METs from the Compendium of Physical Activities. The MET instances are stored as a list under the list attribute

toKCal(mets, weight)

weight in kilograms Returns kilocalories/minute

Ehrman, Jonathan K. ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription. 6th ed. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2010. Print.

stairmasterMets(setting)

For use in submaximal tests on the StairMaster 4000 PT step ergometer.

Returns VO2max in kcal/kg*hour.

Howley, Edward T., Dennis L. Colacino, and Thomas C. Swensen. "Factors Affecting the Oxygen Cost of Stepping on an Electronic Stepping Ergometer." Medicine & Science in Sports & Exercise 24.9 (1992): n. pag. NCBI. Web. 10 Nov. 2016.

target(vO2Max, intensity)

Used to estimate a MET value for a given VO2max intensity. The returned target MET value can be used to identify an activity that has a close or matching MET value.

Ehrman, Jonathan K. ACSM's Resource Manual for Guidelines for Exercise Testing and Prescription. 6th ed. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2010. Print.