Ergonomics Case Study Solution
Risk Identification and Injuries Causes
Hierarchal Task Analysis
In making the Pizza, the worker goes through the hierarchy shown in Appendix 1. In the first step the worker has to prepare the dough, for that he has to carry the two bags of flour that weigh 12.5kgs. This can strain his body, resulting in back ache, neck ache, shoulder pull and arms strain. The worker has to do this once or twice or day depending on the demand of the pizza.
In the second step, he has to slice the pizza dough using the hand slicer, this requires efforts and he has to exert pressure while doing so.
The third step demands more physical strain, as the worker has to hold the dough to the roller, which is upright. He has to pull his hand and lift his upper body to this task. Apart from the physical strain the worker has to bear the noise that the machine makes, this exerts mental pressure on the worker.
The fourth and fifth step are easy and they are not threatening. The worker has to assemble the pizza and grease the pan only.
In the sixth step, the worker has to tolerate the heat of the oven, because he needs to put the pizza in the oven. Bearing the heat repetitively is dangerous for the worker yet he needs to do it.
Ergonomic Issues
MSDs
Definition:
Musculoskeletal conditions are regularly portrayed by torment (frequently diligent agony) and confinements in portability, decreasing individuals' capacity to work and take part in social jobs with related effects on mental prosperity, and at a more extensive dimension impacts on the success of communities. The most widely recognized and handicapping musculoskeletal conditions are osteoarthritis, back and neck torment, cracks related with bone delicacy, wounds and foundational incendiary conditions, for example, rheumatoid joint pain.
Statistics:
In the 2016 Global Burden of Disease examination, musculoskeletal conditions were the second most elevated supporter of worldwide inability, and lower back torment remained the single driving reason for handicap since it was first estimated in 1990. While the predominance of musculoskeletal conditions differs by age and conclusion, between 20%– 33% of individuals over the globe live with an agonizing musculoskeletal condition. (Musculoskeletal conditions, 2018)
Ergonomic Evaluation
In order to decrease the risks of strain and pressure on the employee, the company should introduce equipment that are easy to use and demands less of the workers efforts. The worker had to hold the dough bag in an unreasonable position. Instead of making the worker do this straining job, they can introduce some kind of stand that could hold the bag until it empties. They can also introduce a trolley that could carry the heavy flour bags to the kneading machine.
Instead of using the vertical, upright rolling machine, they can use the horizontal table machine that does not demand the worker to stretch and pull himself. Assembling pizza and slicing the dough can also be automated by the use of machines. Putting the pizza in the oven is another task that does not demand physical strain but the heat coming out of the oven affects the worker. In order to cater this issue, they should introduce gloves and heat protective suit so that he stays safe.
Method
Quick Exposure Check (QEC):
This is the scoring chart that shows how much a worker is bearing the pressure, they derive the analysis by donating the positions of hand or back, by alphabets and numbers. They then analyze the stress that a worker goes through on a daily basis.
Rapid Upper Limb Assessment (RULA)
A solitary page worksheet is utilized to assess required body stance, power, and reiteration. In light of the assessments, scores are entered for each body area in segment A for the arm and wrist, and segment B for the neck and trunk. After the information for every district is gathered and scored, tables on the structure are then used to aggregate the hazard factor factors, producing a solitary score that speaks to the dimension of MSD chance.
Conclusion
The assessments identify how the people go through strains and problems because of their working environment. Some tasks demands a lot of efforts and contributions and they exert a lot of pressure on the people. This effects their mental and physical ability and leaves them with a broken or damaged back or neck. This needs to be decreased, which can be done by analyzing the working environments and improving them as per the workers ease and suitability.
Appendix 1
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