45 ~ 52 Worker Posture and Fatigue Assessent of Manual Handling Reject… (original) (raw)
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Journal of emerging technologies and innovative research, 2021
Forge smith's have been the most important group and enjoyed utmost respect in the traditional rural setup. No agriculture and no rural industry could sustain without them. Despite being such an important part of the society their working condition is really poor it contain use of heavy tools and furnaces; which involve heat, noise, vibration, and dusty environments. Therefore, forge smith's are especially prone to occupational health problems and experience more sickness absenteeism. This paper presents a study on various working postures of forging workers who are involved in different activities like hammering, striking and cooling. The study was conducted on 120 workers who are engaged in forging work. To determine the prevalence of self-reported musculoskeletal pain/discomfort body map and standardized NORDIC musculoskeletal questionnaire were used. The result revealed that forging workers were exposed to repetitive work for long time, and the occurrence of back pain and body ache was found very high among them Thus the workers are under high risk of work-related musculoskeletal disorders which need to be taken care of through ergonomic intervention and medical treatment.
Identification of Work-Related Musculoskeletal Disorders in Mining
Work-related musculoskeletal disorder (WMSD) prevention measures have been studied in great depth throughout various industries. While the nature and causes of these disorders have been characterized in many industries, WMSDs occurring in the U.S. mining sector have not been characterized for several years. In this report, MSHA accident/injury/illness data from 2009 to 2013 were characterized to determine the most requently reported WMSDs in the U.S. mining sector. WMSDs were most frequently reported in workers with less than 5 years or more than 20 years of mining experience. The number of days lost from work was the highest for shoulder and knee injuries and was found to increase with worker age. Underground and surface coal, surface stone and stone processing plants experienced the greatest number of WMSDs over the period studied. WMSDs were most commonly caused by an employee suffering from an overexertion, falls or being struck by an object while performing materials handling, maintenance and repair tasks, getting on or off quipment or machines, and walking or running. The injury trends presented should be used to help determine the focus of future WMSD prevention research in mining.
[Study on lifting-related musculoskeletal disorders among workers in metal processing]
Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases
To investigate lifting-related musculoskeletal disorders in metal processing, to analyze the risk factors, and to study the validity and feasibility of using NIOSH lifting equation in China. The questionnaires of semi-structured interview, the Ovako Working Posture Analysing System (OWAS) postural analysis and variables of the NIOSH equation were applied to the study. The study population consisted of 69 workers mainly involved in manual materials handling (MMH), categorized as Job A; and 51 machinery workers, served as controls, that were less MMH task involved, as Job B. The prevalence of low back pain (LBP), which was defined at least one episode lasting for more than 24 hours in the past 12 months, were 63.8% and 37.3% for Job A and Job B, respectively. However, the prevalence of LBP lasting for more than a week due to lifting were 26.09% and 5.88% for Job A and B, respectively. The proportion of awkward back postures were found higher in Job A than that of Job B (66% vs 63%, P ...
Preponderance and possible factors associated to musculoskeletal symptoms in metals industry workers
Work (Reading, Mass.), 2012
The objective of this study was to determine the prevalence of complaints of musculoskeletal pain in workers following the metallurgical establishing a relationship with the sociodemographic profile and perception of professionals about the cause of symptoms. A descriptive cross-sectional study was conducted in the following metallurgical enterprises in the city of Curitiba, Brazil. The sample consisted of 50 individuals. The instrument used for data collection was the "Nordic Questionnaire of musculoskeletal symptoms" including demographic data and verifying the level of significance (0.05). There was a prevalence of low back pain, hip and lower limbs (92%), especially those who work more than one year, and 82% reported relationship between pain and work. The symptoms in the lumbar region grouped the dorsal region was more related to activity performed with the p-value of 0.000. The possible relationship between pain and the work reveals the need for an ergonomic program ...
Int. J. Mining and Mineral Engineering, 2020
This study evaluated the physical and environmental working conditions of underground coal mines and the occurrence of musculoskeletal symptoms (MSS). The data from 236 miners were collected and analysed by using the chi-squared test, Fisher’s exact test, and the Mann-Whitney U test. Results showed that mine design was inappropriate (e.g., lack of appropriate tools and inadequate working conditions, etc.). Miners had to deal with excessive job demands (e.g., inappropriate work pace, high manual material handling (MMH), and repetitive tasks). Most miners (85.5%) experienced pain/discomfort in at least five body regions. Low back (82.6%), upper back (80.9%), shoulder (77.5%), knee (67.8%), and ankle/foot (62.3%) complaints were the most frequently reported symptoms. The low back symptoms were associated with MMH tasks, shoulder symptoms were associated with poor lighting conditions, and ankle/foot symptoms were associated with inappropriate work pace, inadequate space, pushing/pulling/dragging tasks, and bending/twisting activities. The findings help to understand the working conditions of miners and highlight the need for multifaceted interventions to improve the workstation design and work organisation.
Postural analysis of dumper operators and construction workers – a case study
2021
This case study aims at assessing and understanding the level of ergonomics in manual material handling tasks (loading, granite cutting, concrete mixing, brickwork, and plastering) of civil construction workers and dump truck drivers working in Indian opencast mines. The study involves the determination of the level of musculoskeletal disorder and predicting the most affected body parts due to incorrect working posture. The comprehensive methodology involved in this study includes rapid upper limb assessment (RULA) and rapid entire body assessment (REBA) techniques to find the risk involved in the working posture of the construction workers and dump truck drivers. The study showed that posture adopted in civil construction work and dump truck operators (loading and unloading task) are ergonomically incorrect and may cause musculoskeletal disorder (MSD) related problems in the future. This study also showed that the trunk and wrist are the most affected parts of the body in construct...
Musculoskeletal disorders and ergonomic risk factors in foundry workers
International Journal of Human Factors and Ergonomics, 2019
The present study aims to identify activity-specific risk factors associated with musculoskeletal disorders (MSDs) among workers from small-scale foundries in western India. The modified Nordic questionnaire is adopted to explore the prevalence of MSDs and associated critical ergonomic risk factors among 181 male foundry workers. Further, logistic regression is applied to explore critical factors causing MSDs in a foundry context. This study investigates manual materials handling (MMH) effect on MSDs prevalence and highlights 'load-handled' as the most critical risk factor. In the process, the study emphasises lower back, neck and knee as the vulnerable body parts. Additionally, it was investigated that workers from melting sections of the foundries are prone to MSDs risks that require immediate intervention. A work system model was used to frame the study and interpreted the results in the context of human-machine interaction occurring at the workspace. The results can be further coupled with engineering interventions for improved productivity in the foundry. 2 A. Qureshi et al.
Ergonomics Analysis of Muscle Activity of Workers in a Metal Stamping Industry
Scientific Research Journal
Occupational health is considered as a crucial element in almost every Small and Medium Industries (SMIs) and it is believed to be one of vital challenges that can influence productivity and competitiveness. It has been known that the metal stamping industry involved a lot of materials handling tasks such as carrying stamped parts from machine to packaging section, transferring moulds from tools store to machines, sorting the finished products and others. Appropriate materials handling equipments are not often provided in SMIs because of the limitation of capital and lack of ergonomics awareness. The workers have to handle the materials and goods manually. These practices may lead to occupational injuries particularly back pain and musculoskeletal injuries. The objectives of the research are to assess and analyze the muscles activity of workers in metal stamping industry. Three male workers who performed metal stamping process using manual technique were participated in the research...
Prevailing factors of musculoskeletal disorders in steel foundry workers20191115 89293 qn85df
Human and social science revue , 2019
(English): This study aims to determine the causes and spread of musculoskeletal disorders (MSD) among workers in a steel foundry based in Oran (Algeria). The Nordic questionnaire (Kuorinka et al, 1987) was used to diagnosis and evaluate the pain and discomfort of (MSD) among the sample of the present study (n=30). Their demographic characteristics were as follows: mean age = 40.46 years, average weight = 71.83 kg, average height = 171 cm, average seniority in the company = 11 years). The results showed that 51.85 % of workers suffered from pain and discomfort in the lower back, and 40.74 % at the shoulders. The causes of pain and discomfort are due to a combination of factors like high work pace, heavy load carriage (more than 10 kg), in addition to the adoption of static postures for long periods, and the presence of repetitive tasks. The study concluded that attention should be paid to the working conditions in the steel foundry under investigation, particularly in providing weight lifting equipment, redesigning job and work methods to avoid painful postures, beside the reduction of work rate and the reorganization of rest pauses.
Manual Material Handling Assessment among Workers of Iranian Casting Workshops
2013
Manual material handling (MMH) tasks can be found in most workplaces and they may constitute a risk factor for work-related musculoskeletal disorders (WMSDs). This study was conducted to determine the prevalence of WMSDs and to compare MMH loads with the acceptable weight and force limits among Iranian casting workers. Data were collected from 50 workers of casting workshops who performed MMH tasks. The Nordic musculo skeletal disorders questionnaire and the Snook tables were used as tools for data collection. Hand/ wrist symptoms were the most prevalent problems among the workers (84%). The results of the Snook tables showed that the loads in lifting (84%), lowering (86%), carrying (66%), pushing with initial (43%) and sustained force (59%), and pulling tasks with initial (48%) and sustained force (93%) exceeded recommended limits. WMSDs occurred in high rates among the workers and, thus, ergonomics interventions should focus on decreasing WMSDs and redesigning MMH tasks.