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2011 Compendium of Physical Activities *Italicized codes and

What is the Compendium of physical activities?
The Compendium coding scheme links a five-digit code that describes physical activities by major headings (e.g., occupation, transportation, etc.) and specific activities within each major heading with its intensity, defined as the ratio of work metabolic rate to a standard resting metabolic rate (MET).
What is a good MET score?
Exercise capacity is based on metabolic equivalents (MET) achieved, (one MET is defined as 3.5 mL O2 uptake/kg per min, which is the resting oxygen uptake in a sitting position).
Less than 5 METS is poor, 5–8 METS is fair, 9–11 METS is good, and 12 METS or more is excellent.
What is a 4 metabolic equivalent?
A 4 MET activity expends 4 times the energy used by the body at rest.
If a person does a 4 MET activity for 30 minutes, he or she has done 4 x 30 = 120 MET-minutes (or 2.
0) MET-hours) of physical activity.
A person could also achieve 120 MET-minutes by doing an 8 MET activity for 15 minutes.
One metabolic equivalent (MET) is defined as the amount of oxygen consumed while sitting at rest and is equal to 3.5 ml O2 per kg body weight x min.

What is the Compendium of physical activities?