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Table 1 Reference values for physical activity levels (PAL) as published by FAO/WHO/UNU [30]

From: Randomised controlled trial of the effects of physical activity feedback on awareness and behaviourin UK adults: the FAB study protocol [ISRCTN92551397]

PAL Value Description
Less than 1.2 Bed rested: Most likely when in care of others
1.2 to 1.55 Low activity level: Sedentary lifestyle.
1.55 to 1.71 Medium activity level: Occasionally active. Typical office work.
1.71 to 1.95 High activity level: Some manual work and/or regular exercise
Greater than 1.95 Very high activity level: A fair amount of manual work or exercise training.