Physical activity level

The physical activity level (PAL) is a way to express a person's daily physical activity as a number, and is used to estimate a person's total energy expenditure.[1] In combination with the basal metabolic rate, it can be used to compute the amount of food energy a person needs to consume in order to maintain a particular lifestyle.

Definition

The physical activity level are defined for a non-pregnant, non-lactating adult as that person's total energy expenditure (TEE) in a 24-hour period, divided by his or her basal metabolic rate (BMR):[2]

The physical activity level can also be estimated based on a list of the (physical) activities a person performs from day to day. Each activity is connected to a number, the physical activity ratio. The physical activity level is then the time-weighted average of the physical activity ratios.

Examples

The following table shows indicative numbers for the Physical activity level for several lifestyles:<ref>{{cite web |title=Human energy requirements: Energy Requirement of Adults |url=http://www.fao.org/docrep/007/y5686e/y5686e07.htm |work=Report of a Joint FAO/WHO/UNU Expert Consultation |publisher=Food and Agriculture Organization of the United Nations |year=2004

LifestyleExamplePAL
Extremely inactiveCerebral Palsy patient<1.40
SedentaryOffice worker getting little or no exercise1.40-1.69
Moderately activeConstruction worker or person running one hour daily1.70-1.99
Vigorously activeAgricultural worker (non mechanized) or person swimming two hours daily2.00-2.40
Extremely activeCompetitive cyclist>2.40

References

  1. ↑ "Total energy expenditure (TEE) and physical activity levels (PAL) in adults: doubly-labelled water data". Energy and Protein requirements, Proceedings of an IDECG workshop. United Nations University. 1994-11-04. Retrieved 2009-10-15.
  2. ↑ "Human energy requirements: Principles and Definitions". Report of a Joint FAO/WHO/UNU Expert Consultation. Food and Agriculture Organization of the United Nations. 2004. Retrieved 2009-10-15.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.