The Proposed Improvement of Work Posture as An Attempt in Lowering The Risk of Musculoskeletal Disorder (original) (raw)
Related papers
2021
Introduction: Musculoskeletal disorders are injuries that Affect the musculoskeletal system that can be the caused or aggravated by the working environment. Factors that can cause musculoskeletal disorders are exertion of force, repetition, and awkward posture. Awkward posture held too long in the same position will cause injuries and complaints , which in turn will Decrease the productivity for the workers and the company. Purpose: The aim of the study is to examine the correlation between working posture and musculoskeletal disorders on concrete workers of the production division in PT. X Bali. Method: This study is an observational analytical study with cross-sectional design, participated by 43 concrete workers of production division using consecutive sampling technique. The study was held at PT X's concrete plant on Jl. Prof. Dr. Ida Bagus Mantra No. 2461, Gianyar, Bali from 15th July to 17th July. Working posture was measured with Rapid Entire Body Assessment (REBA) and th...
An Ergonomic Analysis on Working Postures of Construction Site Workers
Advances in chemical and materials engineering book series, 2018
The chores of forest nursey workers are comprised of manual labor based on the physical structure of the worker. Long term working postures repeated throughout the shift results in strains at various levels in the body of the worker thereby having adverse impacts on their performances. There are various methods developed in literature for ergonomic risk assessment. The purpose of this study was to examine the working postures of nursery workers working at the Bayburt and Hendek forest nurseries and to analyze problematic working postures using the ergonomic risk analysis methods of OWAS (Owako Working position Analysis System), REBA (Rapid Entire Body Assessment), and RULA (Rapid Upper Limbs Assessment) the reliabilities of which have been proven in literature. This result reveals that hazardous and very hazardous ratios in working postures were 4.6%, 8%, 20% in OWAS, REBA, and RULA methods, respectively. Based on the opinion that the method yielding greater risks is more sensitive for eliminating the risks in the shortest amount of time, it can be put forth that the RULA method gave more sensitive results in comparison with the OWAS and REBA methods.
Ergonomic Risk Assessment of Working Postures in Small Scale Indusries.pdf
Grenze International Journal of Engineering and Technology, Special Issue, 2018
Abstract—Ergonomics is the study of the interaction between people and machines and the factors that affect the interaction. A number of factors play a significant role in ergonomics, and these factors determine the health, safety, comfort and efficient performance at workplace. Work-related musculoskeletal disorders (WMSDs) are the most common problems in manual work in small scale industries. The study presents assessment of working postures of workers from different small scale industries engaged in different activities. About 140 workers from 4 industries namely stone cutting & polishing, saw mills, brick making and dal mill are selected randomly. The study includes administering a musculoskeletal questionnaire to determine the level of MSDs among the workers. The workers are subjected to awkward postures like bending, twisting, heavy load carrying, etc. Evaluation of these postures was carried out using ergonomic assessment tools Rapid Upper Limb Assessment (RULA) and Rapid Entire Body Assessment (REBA). It can be concluded from the study that 32% of the postures adopted by workers are in high risk according to RULA and 36% are in high risk according to REBA assessment tools and need to be changed urgently. It is recommended to improve the working postures by ergonomic controls and interventions, and encourage the use of PPEs in order to improve the efficiency of the workers and overall productivity. Index Terms— Ergonomics, Postures, RULA, REBA, work-related musculoskeletal disorders.
Evaluation of Work postures - The Associated Risk Analysis and the Impact on Labor Productivity
Asian Research Publishing Network (ARPN) Journal of Engineering and Applied Sciences, 2015
Various musculoskeletal disorder (MSD) symptoms can be experienced by the workers performing their tasks in bad work postures which are largely static and consequently these are associated with long term risks and injuries. These postures also have a bad impact on work performance and labor productivity. In this regard, this case study research work has been conducted in a selected ceramic factory of Bangladesh with the aim of evaluation of work postures of workers working in the production section of the factory through rapid upper limb assessment (RULA) and their impact on labor productivity. The secondary objective of the research work was to draw an analysis of associated risks with the bad work posture. In order to evaluate the work postures of workers, RULA technique has been used. RULA is a widely used tool developed for the assessment of work postures which specifically examines the level of risk associated with the upper limb disorder of individual workers by scoring the different body region of the workers. The results obtained from this research work have been plotted into three main sections, namely the identification of good or bad work posture and the level of risks associated with poor work posture and their impact on labor productivity. It has been identified that most workers have been exposed to the upper limb discomfort which in turn contributes to the risk of injuries during the performance of work. Through the analysis of RULA, it has been revealed that no posture is found risk free during the investigation of work postures of workers. According to RULA grand score of 7, 43.59% of the workers need immediate investigation and changes indicating that the level of exposure to postural risks is very high and immediate ergonomics intervention to decrease the exposure to risk level seem essential. The consequence of bad work posture results in musculoskeletal disorders (MSDs) which have also been analyzed in this research work. The most commonly affected body regions found among the 39 listed workers are shoulders (92.31%), neck (71.79%), wrist (71.31%), lower back (43.59%) and upper back (41.03%). Lastly, the correlation between RULA grand score and labor productivity has been shown. The graphical analysis reveals that there is a decreasing trend of labor productivity with the higher RULA grand score establishing the fact that there exists an inverse relationship between average RULA grand score and average labor productivity.
Musculoskeletal Risk Assessment in Small Furniture Manufacturing Workshops
International Journal of Occupational Safety and Ergonomics, 2013
In Iran, furniture is mainly manufactured in small workshops, where most activities are performed manually. This study was conducted among workers of furniture workshops to determine prevalence of musculoskeletal symptoms and to assess ergonomic working conditions to identify major risk factors associated with musculo skeletal symptoms. In this study, 410 randomly selected furniture workers participated. The Nordic question naire and an ergonomics checklist consisting of 6 sections were used as data collection tools. An index was calculated for each section of the checklist. Action categories indicating the priority of corrective measures were also defined. The highest prevalence of symptoms was reported in the knees (39%), lower back (35.6%) and wrists/hands (29.5%). It was found that manual material handling, poor workstation design and awkward working postures were associated with the reported symptoms in these regions (OR 1.77-4.52). Poor general working conditions and work organization showed association as well. Any interventional measures should focus on these areas.
Analisa Kerja Operatordengan Metode Pera (Postural Ergonomic Risk Assessment)
2020
Works in the printing field that causes Musculosketal Soldered (MSDs) which can be caused by repetitive movements and awkward postures. Workers can also experience physical disorders such as Musculoskeletal Disorder (MSDS). To reduce these risks, it is necessary to analyze work tasks through risk to improve posture during activities to determine the level of risk for each task, and cumulative risk for each work cycle. This study uses the Postural Ergonomic Risk Assessment (PERA) method to analyze and measure cyclic examination work. (A) to posture, duration, and strength divided into three groups (A <4 = Low risk, 4 ≤ A ≥ 7 = risk risk, A ≥ 7 = high risk). the duration of time and the urgency of the posture provide workers with high risk, whereas manual workers operating cut machines can cause medium and low risk workers. We find it is a high potential risk that causes damage is workers who move goods that do not have proper facilities. Meanwhile, measurements and paper cuts are ...
Makara Journal of Health Research, 2014
The majority of female batik workers uses non-ergonomic chairs (dingklik) that pose risks of musculoskeletal disorders. This study aimed to design an ergonomic chair and evaluate its effectiveness in reducing musculoskeletal disorders among the workers. This is a quasi-experimental study (using one group pre and post-test design) on 50 female batik workers selected by quota sampling. Musculoskeletal disorders were measured among the samples before and after the use of the designed ergonomic chair which they were asked to use for two months. T-test, ANCOVA, Wilcoxon test, McNemar test and Chi Square test were used for the analysis. The study found statistical significant differences of risk factor against musculoskeletal disorders among the workers before and after their use of the designed ergonomic chair (p< 0.05); and of musculoskeletal disorders before and after using the ergonomic chair (p= 0,035). Body Mass Index (BMI) was identified as a confounding factor, and statistical significant difference of musculoskeletal disorders were also found among the workers with <25 and >25 BMI even before and after using the ergonomic chair (p=0.033 and p=0.015 respectively). By ANCOVA statistical test, after controlling BMI, another statistical difference of musculoskeletal disorders was also identified before and after using the ergonomic chair (p=0.033). It is concluded that the designed ergonomic chair is effective to reduce the risk of musculoskeletal disorders. Abstrak Pengaruh Pemakaian Kursi Ergonomis terhadap Gangguan Muskuloskeletal pada Pekerja Wanita Batik Tulis di Kabupaten Sragen. Sebagian besar posisi kerja pekerja batik tulis di Sragen tidak ergonomis, sehingga berisiko terjadi gangguan muskuloskeletal. Penelitian ini bertujuan untuk mendesain kursi ergonomis dan menilai efektifitas desain kursi terhadap gangguan muskuloskeletal pekerja wanita batik tulis. Jenis penelitian adalah eksperimental quasi dengan pendekatan one group pre and posttest design. Populasi adalah seluruh pekerja industri Batik Sragen. Teknik sampling quota random sampling. Sampel sebanyak 50 orang diukur tingkat risiko keparahan gangguan muskuloskeletalnya sebelum dan sesudah menggunakan kursi ergonomis. Selanjutnya, dilakukan uji Wilcoxon test, McNemar test, dan Chi Square test. Perbedaan tingkat risiko keparahan muskuloskeletal sebelum dan sesudah menggunakan kursi ergonomis (p< 0,05). Terdapat perbedaan keluhan muskuloskeletal sebelum dan sesudah menggunakan kursi ergonomis (p=0,035). Indeks massa tubuh teridentifikasi sebagai confounding factor karena terdapat hubungan yang signifikan terhadap gangguan muskuloskeletal, baik sebelum maupun sesudah menggunakan kursi ergonomis (masing-masing p=0,033 dan p=0,015). Melalui uji Ancova, confounding factor dikendalikan, diperoleh hasil uji yang tetap signifikan (p=0,033). Kursi kerja ergonomis menurunkan risiko keparahan gangguan muskuloskeletal.
2019
Musculoskeletal disorders is an uncomfort symptom in the muscles and bones area. It start from very mild to very severe and often due to repeatedly heavy burden that received for long period. Musculoskeletal disorders in workers become an important problem because it can cause lost work time, decrease in work productivity, decrease alertness, increase the risk of accidents, and high handling costs. In tempe industry, soybeen usually washed in manual procedure and this process often causes pain in the waist, spine, and both hands of the workers. Manual soybean washing can cause working accidents and work-related illnesses. Manual soybean washing are involving muscles and bones that have damage potency to the spine. The purpose of this study was to analyze the relationship between work posture and musculoskeletal disorders in Sanan Tempe Industrian Center, Malang. This study research design was an observational analytic with a cross sectional approach. Based on this study it can be co...
Investigation of “Musculoskeletal Disorder in Different Foundry Industry”
IRJET, 2022
o examine the workers in the foundry industry’s subjective self-evaluation of musculoskeletal discomfort is the major goal of this research article. Fifty workers between the age of 18 and 55 took part in this study. The highest and the lowest percentage of the workers those are experiencing at least of one discomfort are 86 percent and 52 percent respectively due to pain in different parts of the body such as physical exertion, lifting loads, posture, work space, job rotation, rest period, and repetitive motion that has been revealed in the report of questionnaire survey. In addition, 17 of the 20 dissatisfaction factors scored higher than the average musculoskeletal discomfort score of 2.5 on a 5-point scale. Additional research, have been done according to the finding of this study that a relation between musculoskeletal pain and its impact on the employees in the foundry environment is required in this study. To give an ergonomic evaluation based on the postural analysis to reduce the risk of ergonomics this study has been proposed. This document has given a description about the different postures, origins and discomfort related to work in foundry industry. To determine the percentage of people who are suffering from such musculoskeletal disorder a special type of questionnaire called as cornel musculoskeletal disorder questionnaire are used. To determine which tool may be utilized to decrease this risk and establish a safe workplace that will increase the productivity an analysis techniques of ergonomics risk factor are identified.
Ergonomic Risk Assessment using Postural Analysis Tools in a Bus Body Building Unit
Work-related musculoskeletal disorders (WMSD) which are related with repetitive and demandingworking conditions continue to represent one of the biggest problems throughout the world.Assessment of exposure levels to MSD risk factors can be an appropriate base for planning and implementing interventional ergonomics programs in theworkplace. The presents study is focused on posture analysis of the workers working in a automotive coach manufacturing company (bus body building) company. The study wasconducted on 38 workers engaged in various process of manufacturing. The different activities of the workers were recorded by Video and still photography, and these images were used for analysis. Posture analysis toolsRULA, REBA and QEC were used. The results of RULA showed that about 31.57% of the workers were under high risk level and needed a necessary action immediately. About 28.95% of the workers were under medium risk levels andabout 28.95% of the workers were at lower risk levels. The results of REBA showed that about26.32% of the workers wereunder very high risk levels and required immediate change. About 23.68% of the workers were at high risk levels and a change is necessary soon, and 42.10% of the workers were at medium risk levels. According to the QEC method of assessment, it was found that 10.53% of the workers needed no corrective measures. About 31.58% of the workers needed further investigation and 34.21% of the workers were at high risk and required immediate change. It can be concluded that there are ergonomic deficiencies in the planning and work methods. A significant proportion of the workers are working inhigh risk postures. Thus the workers are under moderate to high risk of Work-related Musculoskeletal disorders (WMSDs). The study recommended a proper implementation of ergonomics interventions program with awareness and training among workers to reduce the risksof WMSD.