compendium and developed a prototype for the document. The compendium was used first in the Survey of Activity, Fitness, and Exercise (SAFE study – 1987 to 1989) to code and score physical activity records. Since then, the compendium has been used in studies worldwide to assign intensity units to physical activity questionnaires and to develop innovative ways to assess energy expenditure in physical activity studies. The compendium was published in 1993 and updated in 2000 and 2011. See also Anthropogenic metabolism Basal metabolic rate Calorimetry VO2 max vVO2max References Sources External links Better weight management through science – mayin.org/ajaysha The Compendium of Physical Activities – University of South Carolina The Compendium of Physical Activities Tracking Guide – sites.google.com Exercise physiology Equivalent units Sports nutrition