Ergonomics is a decipline in the health and safety industry that study the human relation with equipments, machineries, procedure and working environment. Ergonomics concentrates on effort to optimize human ability with the job done.

Ergonomics as a scientific field began in the late 18th century when Frederick W. Taylor, known as the father of modern management, founded the principles of scientific management that outlines the 4 principles that must be taken into consideration in order to increase productivity and quality of work. He basically wanted to know the way human can produce better quality of work, which suits what type of work and the method to increase productivity at work with effort and exposure to small dangers

Between the year 1908-1924, Frank and Lilian Gilberth produced ‘therbligs’ that is used to analyse movements while working. Therbligs enables and individual involved with motion study research to use the method to identify movements that is not required and is inefficient and puts aside time that is not required to do a particular work. Therbligs is divided into 2.

a) efficient movement                movement that increase the efficiency of work and possibly reduce the time of a work to be carried out but cannot be wiped out.

b) Inefficient movements           Movements that does not increase work productivity, must be wiped out.

Ralph M. Barnes (1980) through his classic book entitled Motion and the Time Study: Design and Measurement of Work produced a economic movement philosophy that stresses on the need for engineers to take into consideration the physical and mental ability of an employee in identifying their working capability in in order for them to work effectively and efficiently, without disregarding the principles of occupational health and safety.

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