Work Physiology: "Underloading", in Which Human Capacities Are
Work Physiology: "Underloading", in Which Human Capacities Are
Work Physiology: "Underloading", in Which Human Capacities Are
Classification
(kcal/min) (beats/min)
Light work 2.5 – 3 90 or less
Medium work 3–5 90 – 100
Heavy work 5 – 7.5 100 – 120
Very heavy work 7.5 – 10 120 – 140
Extremely heavy work 10 – 15 140 or more
When the work is light, the energy
needs of the working muscles are
supplied by oxygen available in the
blood and by glycogen in the muscles.