نتایج جستجو برای: niosh equation
تعداد نتایج: 230645 فیلتر نتایج به سال:
results the results showed that the highest compressive force exerted on the back was equal to 4002 n and the lowest force 1425 n. moreover, 76% of the tasks were reported to have the highest compressive force greater than the recommended limit; 72% of the tasks had an li 1 - 3 and 28% of them had an li less than 1. there was a weak direct correlation between compressive force and rwl. backgrou...
Introduction: Musculoskeletal disorders are the most prevalent problem in the workplace. Unsafe manual material handling is amongst important causes of such disorders. Unsafe manual material handling can result in different musculoskeletal disorders such as acute physical injuries and increase of strain in back, shoulders and arms. United state society of orthopedic surgeons ranked back pain a...
manual material handling is identified as one of the musculoskeletal disorders risk factors. the aims of this study were to evaluate lifting activities by niosh equation and mac method and the correlation of these two methods. this cross-sectional study was conducted in a rubber industry. studied subjects were 136 male workers selected from various sections by proportional-to size sampling meth...
BACKGROUND Manual material handling is one of the major health and safety hazards in industry. This study aims to assess the lifting tasks, before and after intervention using NIOSH lifting equation and Manual Handling Assessment Charts (MAC). METHODS This interventional study was performed in 2011 in a tile manufacturing industry in Hamadan, located in the West of Iran. The prevalence of mus...
The work presented in this paper was performed for a workstation of an assembly section in a company that manufactures radio modules and air conditioning for cars. After performing a workstation analysis and a questionnaire to the operators it was possible to understand the need to investigate the risk of musculoskeletal disorders originated from both the handling of loads as the incorrect dime...
OBJECTIVE We seek to develop a new approach for analyzing the physical demands of highly variable lifting tasks through an adaptation of the Revised NIOSH (National Institute for Occupational Safety and Health) Lifting Equation (RNLE) into a Variable Lifting Index (VLI). BACKGROUND There are many jobs that contain individual lifts that vary from lift to lift due to the task requirements. The ...
Background and aims: In most industries, manual material handling is an inevitable part of the job.Acute low back pain and workers disability are most important injuries caused by manual material handling tasks. Therefore, evaluation of workplace and working conditions and interventional countermeasures are essential.. The aim of this study was to evaluate the biomechanical risk factors of ma...
Low-back disorders (LBD) continue to be the most costly and common musculoskeletal problem facing society today. Investigators have developed tools or measures that are intended to identify jobs that will probably be associated with an elevated risk of low-back disorders. However, an important and not widely discussed issue associated with these tools and procedures has been that of the validit...
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