Exercise equipment with an accurate delivered-wattage indicator permits the use of relative METs for the same purpose, assuming a known ratio of biological efficiency in converting metabolic energy to mechanical energy, commonly estimated as around 25%. As a relative measure suited to judge exertion level for the individual athlete, many coaches now prefer a measure indexed to maximum heart rate, which is easy to monitor continuously with modern consumer electronics. This definition is more common in colloquial use on the Internet concerning personal fitness, and less common in the recent academic literature. As a relative measure, it might correlate better with rating of perceived exertion. An individual's resting metabolic rate can be measured by absolute gas exchange, absolute thermal output, or steady-state diet in a sedentary condition (with no reference to body mass) or it can be estimated from age, sex, height, body mass, and estimated fitness level (which in part functions as a proxy for lean body mass).
Compendium of physical activities 5 diget code history pro#
Vigorous household chores can add up to as much energy expenditure as dedicated exercise, so it is necessary to include both, suitably pro rata, in an assessment of general fitness.Īn earlier convention defined the MET as a multiple of the resting metabolic rate (RMR) for the individual concerned. A Compendium of Physical Activities is available online, which provides MET values for hundreds of activities.Ī primary use of METs is to grade activity levels for common household activities (such as cleaning) and common exercise modalities (such as running).
The metabolic equivalent of task (MET) is the objective measure of the ratio of the rate at which a person expends energy, relative to the mass of that person, while performing some specific physical activity compared to a reference, currently set by convention at an absolute 3.5 mL of oxygen per kg per minute, which is the energy expended when sitting quietly by a reference individual, chosen to be roughly representative of the general population, and thereby suited to epidemiological surveys. Measure used to describe relative energy expenditure
0 kommentar(er)
