Physical Demand Characteristics of Work

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Introduction

The physical demands of work are often collective described by work category.

Classification

The following classification scheme is commonly used[1]:

Physical Demand LevelOccassional
0-33% of the work day
Frequent
34-66% of the workday
Constant
67-100% of the work day
Sedentary 1-10lbs Negligible Negligible
Light 11-20lbs 1-10lbs Negligible
Medium 21-50lbs 11-20lbs 1-10lbs
Heavy 51-100lbs 21-50lbs 11-20lbs
Very Heavy Over 100lbs Over 50lbs Over 20lbs

References

  1. Dictionary of Occupational Title - Volume II, Forth Edition, Revised 1991.