Physical_activity_level

Physical activity level

Physical activity level

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The physical activity level (PAL) is a way to express a person's daily physical activity as a number and is used to estimate their 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 to maintain a particular lifestyle.

United States Marine triathlete in 2005.

Definition

The physical activity level is 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 level of physical activity 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:[3]

More information Lifestyle, Example ...

See also


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.

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