RULA Ergonomic Assessment Tool

CHAPTER 2
LITERATURE REVIEW
2.1 Introduction
Ergonomic is an important thing to be considered in making sure that the workplace is safe from any factors ok risk that causes injuries to the employees. The term ergonomics has its roots in Ramazzini’s study of the ill-effects of poor posture and poorly designed tools on the health of workers in the early 1700s (Byers et al., 1978). Ergonomics is the study of work laws. it goals is to fit work to employees, rather than fitting workers to the work, through developing knowledge that outcomes in productive adjustment of work techniques to the individual's physiological and mental qualities. The mission of the ergonomics practitioner is to identify and reduce those work stresses that affect the safety,

The RULA ergonomic assessment tool considers biomechanical and postural load necessities of occupation tasks/demands on the neck, trunk and upper extremities. A solitary page worksheet is utilized to evaluate required body posture, force, and repetition. In view of the assessments, scores are entered for every region of the body which is in area A for the arm and wrist, and segment B for the neck and trunk. After the information for every region is gathered and scored, tables on the form are then used to incorporate the risk factor variables, producing a single score that represents the level of MSD risk/hazard.
2.3.2 Step-by-step explanation on RULA analysis method RULA was developed to evaluate the exposure of workers to ergonomic risk factors. In order to fully understand this RULA method, it is necessary to discuss the process in step by step. Basically, there are 15 steps in order to complete the task. In a way to explain this, the “RULA Employee Assessment Worksheet” produced by ‘Ergonomic Plus’ was taken. The RULA worksheet is divided into two body segments sections on the labeled A and B where section A includes the arm and wrist. Section B includes the neck, trunk and legs. With these sections, it will ensure that any awkward postures of the neck, trunk and legs which might influence or affect the postures of the arms and wrist are

Release (RL): the basic element to relinquish control of an object by the fingers of hand. Two classifications: normal release, simple opening of the fingers and completed at the instant of the following reach begin.
Eye times (ET and EF): eye times is the most work for moving and focusing the eye is not a limiting factor and consequently does not affect time for the operation. When the eyes direct the hands or body movements, eye times must be considered. Eye focus time is the time required to focus the eyes on an object and look at it long enough to determine certain readily distinguishable characteristics within the area which may be seen without shifting the eyes. Eye travel time is affected by the distance between points from and to which the eye travels, and the perpendicular distance from the eye to the line of travel
Disengage (D): a hand and finger motion that cause the separation of two objects from one another, where the objects were previously held together by some