Study on methods for classifying intensity of physical work

The reasonable classification of physical labor intensity is an important guarantee of the worker's health and reasonable incomes.In order to achieve this purpose,the original data was collected and normalized through the experiment firstly.Then a regression analysis method was applied to establish a comprehensive model of physical labor intensive evaluation.This model overcomes some defects such as broad-brush and single indicator.Therefore,the model can evaluate the physical labor intensity objectively and rationally.