Also found in: Dictionary, Thesaurus, Legal, Acronyms, Encyclopedia, Wikipedia.
Related to metabolic equivalent: basal metabolic rate
met·a·bol·ic e·quiv·a·lent (MET),
the oxygen cost of energy expenditure measured at supine rest (1 MET = 3.5 mL O2 per kg of body weight per minute); multiples of MET are used to estimate the oxygen cost of activity, for example, 3-5 METs for light work; more than 9 METs for heavy work.
A metabolic unit used to quantify the intensity of physical activity, which is defined as the ratio of the metabolic rate during exercise to the metabolic rate at rest. One MET corresponds to an energy expenditure of approximately 1 kca1Jkg of body weight/hour, or an oxygen uptake of 3.5 ml of O2 consumption/kg/hour. The MET unit is of use when planning the rehabilitation of patients who have had a myocardial infarction.
2—Sitting (e.g., desk work, highway driving).
3—Very light exertion (e.g., office work, city driving).
4—Light exertion, normal breathing (e.g., slow walking, mopping, golfing with a cart).
5—Moderate exertion with deep breathing (e.g., normal walking, golfing on foot, callisthenics, raking leaves, downhill skiing, hunting, fishing, slow dancing, interior painting).
6—Vigourous exertion with panting, overheating (e.g., slow jogging, speed-walking, tennis, swimming, cross-country skiing, fast biking, shovelling snow, heavy restaurant work, laying bricks, heavy gardening, heavy household repairs).
7—Heavy exertion with gasping and sweating (e.g., fast jogging, running, continuous racquetball, touch football, moving heavy rocks, mixing cement, using a jackhammer, shovelling deep or heavy snow, hanging drywall).
8—Peak or extreme exertion (e.g., fast running, jogging uphill, aggressive sports with no rest, extreme work, pushing or pulling with one’s entire strength).
met·a·bol·ic equiv·a·lent(MET) (met'ă-bol'ik ē-kwiv'ă-lĕnt)
The oxygen cost of energy expenditure measured at supine rest (1 MET = 3.5 mL O2 per kg of body weight per minute); multiples of MET are used to estimate the oxygen cost of activity.
metabolic equivalentAbbreviation: MET
A unit used to estimate the metabolic cost of physical activity. One MET equals the uptake of 3.5 ml of oxygen per kilogram of body weight per minute. Approximate MET values of common physical activities range from sleeping (0.9), light housework (2-4), golf (4-5), and lap swimming (more than 6).
See also: equivalent