Showing 7 results for Rula
Dr A Barkhordari , R Jafari Nodoushan , J Vatani Shoaa , Gh Halvani, Dr M Salmani Nodoushan ,
Volume 2, Issue 1 (3-2011)
Abstract
Abstract
Background: Work-related musculoskeletal disorders(WMSDs) are a common health problem and a major cause of disability. In order to control of musculoskeletal disorder risk, it is so important to understand how these disorders develop and manifest themselves in society. In order to assess exposure to risks for WMSDs and provide a basis for ergonomic interventions, this study was done for posture evaluation in FRO- ALEAGE factory workers of Kerman.
Methods: This is a descriptive cross-sectional study that accomplished using OWAS, RULA, QEC software method for evaluation of incidence of MSDS.
Results :Finding of this study showed that the duties"mineral stone breaker, spout cleaner, outside cleaner and stoker" are the most hazardous tasks. Adjustment of work station, work load reduction and designing of suitable work stations are our recommendation for improvement of work conditions.
Conclusion: assessing results of RULA and QEC revealed strong relation and correlation between twomethods. So we recommend using these 2 methods for posture evaluation of workers in similar tasks.
Dr M Mostaghaci, Z Salimi , M Javaheri, Sf Hoseininejad , M Salehi, Dr Mh Davari , Dr Ah Mehrparvar,
Volume 3, Issue 3 (12-2011)
Abstract
Abstract
Background: Musculoskeletal disorders (MSDs) are caused by chronic and long-term exposure to ergonomic factors or by an acute injury. MSDs are the most important cause of work hour loss and medical costs in the workplace. In this study, ergonomic risk factors and frequency of MSDs of workers of an agricultural equipment-manufacturing plant were evaluated.
Methods: In a cross-sectional study 70 workers were evaluated. Nordic questionnaire was used for evaluation of musculoskeletal disorders and RULA and QEC methods were used for ergonomic risk assessment. Data was analyzed using SPSS (ver. 17).
Results: Mean age and employment duration of the workers was 32.75±3.6 and 6.45±7.9, respectively. Frequency of MSDs in these workers was 40.3%. Frequency of the disorders in each body part was: back (12.8%), knee (8.7%), hand (7.8%), neck (6%), and shoulder (5%). RULA score for welding and painting units was 7 and this measure for warehouse and assembly unit was 6 which are in the action level of 3 and 4, respectively. QEC score in 21.3% of workers was between 51 and 70, and 8.2% had a score more than 70, and both need ergonomic intervention.
Conclusion: A considerable percent of workers in this factory work in a non-safe ergonomic situation and the frequency of musculoskeletal disorders are high among them which needs a proper ergonomic intervention.
M Mostaghaci, Mh Davari, F Mollaei, M Salehi, Ah Mehrparvar,
Volume 3, Issue 4 (2-2012)
Abstract
Intruduction: Musculoskeletal disorders are among the most common disorders due to ergonomic risk factors. This study was designed to evaluate the frequency of musculoskeletal disorders in an auto-part manufacturing company in 2010.
Methods: This descriptive-analytic study was conducted on 94 welders and operators of an auto-part manufacturing company. The method of sampling was census. We used NMQ and RULA method for evaluation of MSDs and Work postures. Data was analyzed using SPSS (ver. 17).
Results: Mean age of the subjects was 30.44 years (range: 20-56 years). The age group with the most frequent musculoskeletal disorders was 20-29 years (52.1%). Mean employment duration of the subjects was 5.2 years (range: 0-12 years). According to the results of NMQ, 70.2% of the subjects had experienced pain or discomfort in one of the areas of musculoskeletal system. According to RULA method 50.95% of subjects had RULA score=7 which takes place in action level 4. There was a statistically significant relationship between age and employment duration and musculoskeletal disorders (p<0.05).
Conclusion: This study showed that musculoskeletal disorders were more frequent in low back. Considering that the action level of 4 was the most frequent one among the workers (50.9%), immediate ergonomic intervention is necessary.
Sayed Mohammad Jafari, Babak Fazli, Marzieh Nurani, Zahra Sharifpoor, Raziyeh Soltani Gerdfaramarzi,
Volume 5, Issue 2 (9-2013)
Abstract
Background: Sawing job is one of the occupations that have high work-related musculoskeletal disorders prevalence because of repetitive tasks. The current study aimed to determine work-related musculoskeletal disorders and risk factor of this disorder in YAZD city tailors.
Methods: In a cross-sectional study, we take film from working process and worker’s postures, each task were assigned a posture score using RULA method. Face to face ergonomic training was done for each worker. After intervention, worker’s postures evaluation was done again. Descriptive statistics and nonparametric tests (Wilcoxone and Kruskal-Wallis) were used.
Results: The result showed that the highest final posture score and action level in tailor workstations were 7 and 4 respectively. Significant differences were shown in the final score postures in four tasks (Sewing, Cutting, Ironing and Button sewing). After ergonomic training, re-evaluation of body posture had done and RULA score was decrease in two tasks, cutting and Sewing buttons.
Conclusion: The results of this study indicate that ergonomic training on body position tailors in Sewing and button Sewing work station is effective
M Zokaei, M Flahati, H Jalilian, Mamin Faghih, M Normohammadi, S Amiry,
Volume 6, Issue 3 (10-2014)
Abstract
Background: One of the most main jobs in the automotive industries is assembly that its activities include hand motions, navigation of pieces and using controlled forces for joining of them together. Awkward posture is one of the most important risk factors in incidence of musculoskeletal disorders. There are different methods to assess those factors. This study was conducted to illustrate the correlation between the results of MFA method and RULA in the assessment of musculoskeletal disorders risk.
Methods: In this cross-sectional study 37 jobs were selected as a sample by using of Cochran formula. In this study, 80 postures were assessed by using of two mentioned methods to determine the musculoskeletal risk level.
Results: The results of MFA method indicated that 17.5%, 11.3% and 7.5% of jobs in shoulders, low back, wrist and fingers were sequentially in “very high” level of modified actions preference. On the other hand, the results of RULA assessment pointed out that 46.3% of jobs were in level 3 of modified actions and 38.8 of them were in level 3 of those actions. Analyzing of data by using of Spearman test displayed that there is significant relationship between RULA scores of shoulders, body and neck with the level of modified action in MFA method (P-value≤0.05) and sequentially, the correlation coefficients were 0.782, 0.787 and 0.8.
Conclusion: In general view, there are many similarities between two methods in both the way of study and the final assessment however, one of the main differences of them is that the results of MFA method are more reliable when all parts of body involve in physical activities. In addition, in MFA method, the details of body’s limbs are assessed more than RULA method.
Engineer Hossein Poorang, Dr Hasan Sadeghi Naeini, Dr Roozbeh Ghousi,
Volume 11, Issue 1 (11-2019)
Abstract
Introduction: Working under non-ergonomic situations can cause physical damage. It's compulsory for the students of almost every engineering discipline to do parts of their training activitiy in various workshops including welding workstations; needless to say, the paucity of appropriate situations in such workshops may lead to physical injuries. On the other hand, ergonomic design of workstations can be considered a way to keep human health. The purpose of this study is an investigation onthe application of ergonomic solutions in the design of workstations and Working situation improvement in oxy gaseous welding workshops.
Method: In this study, workstations of the welding workshops in one of the public universities were selected as the case studies. To carry out a more accurate evaluation of the workshop environment, assessment of the work environment (FIOH MSD) has been used as method. The critical indicators of the current status of workstations were analyzed, using the CATIA V5 R21 software, the RULA method, and the proposed solutions.
Result: The results of the RULA clearly indicate a serious need to workstations's reform and Improve their level of safety. The Risk levels for the left and right hands were 6 and 7, which were decrease to 3 and 4 after redesigning the workplace and reforming its situations.
Conclusion: Studies and assessment indicate that during welding activities, postures of people cause serious injuries to various parts of the body, especially the spine and neck. Therefore, workplace redesigning that is based on sit-stand workstation standards can be a suitable solution to correct the posture of people in oxy gas welding workshops.Workstation redesigned involve some features such a increasing the dexterity and delicacy during welding and the proper use of Inclusive Design factors to adjust the height of table, chair and the angle of table surface.
Mahsa Asgari, Gholamhosein Halvani, Majid Zarinkafsh,
Volume 11, Issue 2 (11-2019)
Abstract
Introduction: Musculoskeletal disorders are prevalent in work environments. Performing programs to identify and control the risk factors for musculoskeletal disorders and to carry out corrective actions to improve working conditions is important because of the impact on the health of the workforce.Methods: In this study, the presence of various shifts in the operating rooms and the training and justification of the employees of this department regarding its study and its objectives, the steps of the work of the operating room staff in various occupations were observed and existing documents and guidelines were reviewed. The main steps, including hierarchical analyzes of businesses, identifying errors in terms of each task and sub task, completing other parts of the work sheet, and determining the probability of human error and providing the prioritized control strategies in the next steps, was carried out.
Results: Based on the results of Nordic questionnaire, age, work experience and higher weight were associated with musculoskeletal pain in most of the organs. Also taller was associated with back and waist pain and older age with pain and discomfort in the palms, knees and ankles (p <0.05). Based on the results of posture assessment, RULA 2 has a risk level of 4, 2 tasks Risk level 3 and 2 were risk level 2, which after the implementation of the interventions, a number of risk levels were eliminated in general and a number decreased.
Conclusion: Despite the high risk of musculoskeletal disorders in this industry, ergonomic interventions reduced risk to the desired level.
