Table 1: Activity factor according to level of activity [18].

Level of Activity	Activity factor
Bed rest (Bed ridden - Unconscious)	1.0-1.1
Sedentary (Little to no exercise )	1.2
Light exercise (1-3 days per week)	1.3
Moderate exercise (3-5 days per week)	1.5
Heavy exercise (6-7 days per week)	1.7
Very heavy exercise (twice per day, extra heavy workouts)	1.9