Table 2 Work heaviness classification in terms of energy expenditure
Workload categories | Energy expenditure | ||||
|---|---|---|---|---|---|
NIOSH (USA) standard [4], ISO 28996 | Russian standards of hygiene [5] | Male, kcal/min | Female, kcal/min | ||
Light work | I | Light work | I | 2.0 – 4.9 | 1.5 – 3.4 |
Moderate work | II | Permissible work | II | 5.0 – 7.4 | 3.5 – 5.4 |
Hard work | III | Moderate work | II.1 | 7.5 – 9.9 | 5.5 – 7.4 |
Very hard work | IV | Hard work | II.2 | 10.0 – 12.4 | 7.5 – 9.4 |
Ultimate work | V | Excessively hard work | III | more 12.5 | more 9.5 |