Applying Metaheuristics to Minimize Work-Related Musculoskeletal Disorders

2022 ◽  
pp. 643-662
Author(s):  
Arminda Pata ◽  
Ana Moura

This article covers the topic of planning and organization of work, which is one of the biggest problems is to establish the most appropriate allocations between human and technical resources, according to the characteristics that define and characterize each individual. These adjustments to decision-making regarding the characteristics of a new larger workforce is a challenge for human resource managers and researchers working to provide well-being and quality of life improvements for employees. The problem of work-related musculoskeletal disorders, coupled with the aging of the active population, may increase the number of citizens with permanent disabilities. Given the complexity and uniqueness of the problems, a decision support system that uses some metaheuristic approaches is presented. The result is a hybrid approach that gives the best solution according to several parameters defined by the decision-maker. Computational results of real problem instances are presented, proving that in most cases, the optimal solution is achieved.

2018 ◽  
Vol 14 (2) ◽  
pp. 17-34
Author(s):  
Arminda Pata ◽  
Ana Moura

This article covers the topic of planning and organization of work, which is one of the biggest problems is to establish the most appropriate allocations between human and technical resources, according to the characteristics that define and characterize each individual. These adjustments to decision-making regarding the characteristics of a new larger workforce is a challenge for human resource managers and researchers working to provide well-being and quality of life improvements for employees. The problem of work-related musculoskeletal disorders, coupled with the aging of the active population, may increase the number of citizens with permanent disabilities. Given the complexity and uniqueness of the problems, a decision support system that uses some metaheuristic approaches is presented. The result is a hybrid approach that gives the best solution according to several parameters defined by the decision-maker. Computational results of real problem instances are presented, proving that in most cases, the optimal solution is achieved.


2017 ◽  
Author(s):  
◽  
Jolene Jacquire

Background The growing popularity and competitive nature of the beauty industry has resulted in beauty therapists performing an extensive range of treatments to meet the demand, often at the jeopardy of their own well-being. Treatments include massage, waxing, pedicures and facials. These techniques involve vigorous and repetitive movements that may lead to overuse and strain on the musculoskeletal system, resulting in injury. Work-related activities together with factors such as socio-demographic, psychosocial, environmental and anthropometric can influence the prevalence of work-related musculoskeletal disorders (WRMDs). There has been little investigation into the WRMDs of beauty therapists both locally and internationally. Aim The aim of this study was to determine the prevalence, selected risk factors and impact of self-reported work related musculoskeletal disorders (WRMDs) in beauty therapists working within the hotel spa industry in the eThekwini municipality. Method A cross sectional epidemiological design was used to survey 254 beauty therapists working in the hotel spa industry in the eThekwini municipality of Durban. A pre-validated questionnaire was hand delivered to beauty therapists working at all hotel spas that agreed to participate. Informed consent was obtained. The survey contained questions related to musculoskeletal pain, socio-demographic, psycho-social, lifestyle and occupational factors. Results A response rate of 70% was obtained (n=178). The majority of the respondents were female (94.3%; n=165), the mean age of the respondents was 27.74 (SD±4.83) years. The respondents had been working as beauty therapists for an average of 5.91 (SD±4.19; n=176) years and performed on average 27.89 (SD±13.33; n=170) treatments per week, working 47.38 (SD±13.36; n=175) hours per week. Those working overtime worked on average 5.43 (SD±2.94; n=59) hours of overtime per week. There was a high rate of reported WRMDs with the lifetime, current and 12 month period prevalence being 86% (n=153), 85% (n=151) and 83% (n=148), respectively. The area most affected were the low back followed by the neck, the hand and wrist. Ninety percent of the respondents indicated that their pain was mild to moderate in nature, with half expressing an inability to cope with the pain, and 78% reporting that it interfered with their ability to work. Mental exhaustion (p=0.032), suffering from a concomitant co-morbidity (p=0.031), years worked as a beauty therapist (p˂0.001) and treating clients after hours (p=0.007) were significantly associated with the presence of musculoskeletal pain. Performing manual massage (p=0.043) and reporting feelings of exhaustion whilst performing specialised massage techniques (p=0.014) and applying makeup/eyelashes (p=0.022) were associated with the presence of WRMDs. Those who reported having co-worker (p=0.006) and managerial support (p˂0.001) were less likely to experience musculoskeletal pain. In contrast, feeling frustrated by work (p=0.007), being under pressure (p=0.005) and over worked (p=0.009) increased the chances of experiencing WRMDs. Working with the back in an awkward position (p˂0.001), standing for prolonged periods (p˂0.001), lifting heavy loads (p=0.019) and working in a hot and humid environment (p<0.001) increased the risk of WRMDs. Conclusion WRMDs have a significant impact on beauty therapists’ ability to work. Effective strategies to prevent and manage WRMDs in hotel spa beauty therapists is required, along with governmental regulation.


Author(s):  
David H. Seidel ◽  
Dirk M. Ditchen ◽  
Ulrike M. Hoehne-Hückstädt ◽  
Monika A. Rieger ◽  
Benjamin Steinhilber

Background: Work-related musculoskeletal disorders at the elbow are a common health problem, which highly impacts workers’ well-being and performance. Besides existing qualitative information, there is a clear lack of quantitative information of physical risk factors associated with specific disorders at the elbow (SDEs). Objective: To provide evidence-based quantitative measures of physical risk factors associated with SDEs. Methods: Studies were searched from 2007 to 2017 in Medline, EMBASE, and Cochrane Work. The identified risk factors were grouped in main- and sub-categories of exposure using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) framework for rating evidence. Results: 133 different risk-factor specifications were identified in 10/524 articles and were grouped into 5 main- and 16 sub-categories of exposure. The risk factors were significantly associated with lateral epicondylitis, medial epicondylitis, or ulnar neuropathy. Significant risk factors such as wrist angular velocity (5°/s, with increasing prevalence ratio of 0.10%/(°/s), or forearm supination (≥45° and ≥5% of time combined with forceful lifting) were found. Conclusions: This review delivers a categorization of work-related physical risk-factor specifications for SDEs with a special focus on quantitative measures, ranked for evidence. These results may build the base for developing risk assessment methods and prospective preventive measures.


2021 ◽  
Vol 10 (1) ◽  
pp. e55310111980
Author(s):  
Hercules José Marzoque ◽  
Renan Fernandes da Cunha ◽  
Clara Mariana Gonçalves Lima ◽  
Rafael Leite Nogueira ◽  
Vinícius Expedito de Andrade Machado ◽  
...  

This study aimed at carrying out the characteristics existing in slaughterhouses work scenarios, taking into account the aspects that corroborate to ensure employees' health conditions, such as physical, chemical, biological risks, and, mainly, ergonomic. It is noted that the slaughterhouses have several changes that compromise the physical conditions of those who provide practical actions in these service spaces. The data from this research are seasoned due to issues involving ergonomic aspects such as Work-Related Musculoskeletal Disorders (WRMD) and temperature, humidity, risky materials, noise, extensive workloads, among other factors that compromise, significantly, the health of employees. In short, the scenarios lack changes and improvements in conditions of caring for the well-being of employees, as well as envisioning the need to ensure conditions for improving their materials, proposing a complementation in the training of their workers. 


2020 ◽  
Author(s):  
Musaed Alnaser

Abstract Background Millions of working hours are lost globally as a result of work-related musculoskeletal disorders (WMSDs). American health care professionals spend approximately 13 days away from work as a result of such injuries. There is a significant body of research on the different ways in which psychosocial factors contribute to the cause of WMSDs. However, there is insufficient evidence on the psychosocial distress acquired by WMSDs and their effect on an individual’s overall health and wellbeing. The purpose of this study was to investigate psychosocial distress among workers with WMSDs from different occupational fields.Methods A phenomenological qualitative approach was used. Eight participants with work injuries were interviewed. The interview guide comprised eight semi-structured, open-ended questions. Phenomenological analysis was used to develop patterns, categories, and themes.Results Analysis of the interviews revealed three themes: the materiality of work, development of psychosocial distress, and adaptation strategies. Participants demonstrated positive working attitudes, values, and beliefs. Work provided a sense of self-worth and meaning to life. However, work injuries disrupted and challenged all aspects of the participants’ lives including work, home, family, and personally, resulting in psychosocial distress.Conclusion This study concludes that WMSDs could negatively affect the psychosocial health of workers. Depending on the severity of WMSDs and the significance of materiality of work, the amount and magnitude of psychosocial distress occur accordingly. Individual attempts using different adaptation strategies to regain control over the environment are required to reduce psychosocial distress and physical symptoms, promote family stability, and perform expected roles and responsibilities. Employers should develop and carry out health promotion programs to improve the health and well-being of people at work.


Author(s):  
Nancy L. J. Larson

Corporations have been implementing ergonomics programs for more than 30 years. Initially, the purpose of these programs was improving operational efficiency by applying knowledge of human capabilities and limitations to the design of work. In recent years, corporate programs in the United States have increasingly focused on reducing the impact of work-related musculoskeletal disorders on both business and employee well-being. This article provides a brief summary of both types of ergonomics program strategies and describes my experiences leading two corporate ergonomics programs.


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