alireza besharati; Ali Ghanbari; Alireza Choobineh; Seyed Hamidreza Tabatabaee; Hadi Daneshmandi
Volume 3, Issue 3 , July 2015, , Pages 101-106
Abstract
Background: Proper training on how to correctly handle loads is one key point for prevention of low back disorders. This study was conducted with the objectives of assessing manual material lifting activities and comparing two methods of training intervention in a porcelain company. Methods: In this ...
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Background: Proper training on how to correctly handle loads is one key point for prevention of low back disorders. This study was conducted with the objectives of assessing manual material lifting activities and comparing two methods of training intervention in a porcelain company. Methods: In this randomized controlled trial which was conducted in a porcelain company, all male employees with lifting activities (n=204) participated. The data were collected using Nordic Musculoskeletal Disorders Questionnaire and Lift/ Lower Force Risk Assessment software for assessing manual material lifting. Intervention methods included booklet and oral training. Data were analyzed using Mann-Whitney U and Chisquare tests using SPSS software (Version 17.0). Results: The most prevalent musculoskeletal disorders symptoms were reported in the knee (52.5%), feet (45.1%), and lower back (43.6%). Risk assessment before intervention showed that in 62.7% of the workers studied, the level of exposure to musculoskeletal risks was in Action Level (AL) 1, 31.9% in AL 2 and 5.4% in AL 3. The risk assessment after intervention showed that in 77.5% of the workers studied, the level of exposure to musculoskeletal risks was in Action Level (AL) 1, 20.6% in AL 2 and 2% in AL 3 (P<0.001). Also, statistical analysis revealed that oral training (24.5%) was more effective than the booklet training (11.8%) (P=0.018). Conclusion: This study showed that training intervention could be effective in correction of methods of manual material lifting of workers. It seems oral training for workers of porcelain industry is more effective than the booklet training. Trial registration number: IRCT2015050322071N1.
Naeimeh Asadi; Alireza Choobineh; Sareh Keshavarzi; Hadi Daneshmandi
Volume 3, Issue 1 , January 2015, , Pages 8-12
Abstract
Background: Manual load lifting is the most common and stressful activity that imposes high biomechanical pressures on the body, particularly on the back. Diverse studies have shown that load lifting can cause work-related musculoskeletal disorders among workers. This study was conducted to assess manual ...
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Background: Manual load lifting is the most common and stressful activity that imposes high biomechanical pressures on the body, particularly on the back. Diverse studies have shown that load lifting can cause work-related musculoskeletal disorders among workers. This study was conducted to assess manual lifting activity using NIOSH equation and WISHA index and compare the results of the two methods in workers with manual lifting activities.Methods: This cross- sectional study was carried out among 120 workers with manual lifting activity in 7 industrial settings of Shiraz city. Nordic Musculoskeletal disorders Questionnaire (NMQ) and demographic questionnaire, as well as NIOSH lifting equation and WISHA index were used to gather the required data. Statistical analyses were performed using SPSS, 19.Results: The results showed that back problems were the most frequent musculoskeletal disorders among the workers studied (68.3%). The results of lifting evaluation indicated that 79.2% of the individuals in the NIOSH method and 39.2% in WISHA index were at risk of back injuries. The kappa value was equal to 0.29, indicating a fair agreement between the results of assessment by the two methods.Conclusion: The results of this study confirmed a fair correlation between these two assessment methods, so they might be used interchangeably.