Effect of ergonomic and workstyle risk factors on work related musculoskeletal disorders among IT professionals in India

'Workstyle' can be described as a mechanism by which ergonomic and psychosocial risk factors interact to affect the development, exacerbation and/or maintenance of upper limb pain and functional limitations. Workstyle is associated with the increase in the work demand. In today's life use of computer in the workplace is very common and it causes to increase the work demand among the workers who are working with computer. As work demand increase, according to the characteristic of workstyle, risk of the development of musculoskeletal disorders also increased. This study aimed at to findout the association between ergonomics risk factors, workstyle and WRMSD. Two hundred IT professionals participated in this study. Result revealed that most prevalenet body regions were lower back (20%), Upper back (16%) and shoulder (14%). Study result says that there is a positive association between workstyle score with musculoskeletal pain (r=0.85). Also it revealed that posture and regional pain is associated (r=0.62), per day use of computer and musculoskeletal pain (r=0.46), micro breaks and pain (r=0.87) and productivity and the pain (r=0.95). This study further validates these observations and extends support for the assessment of working postures and workstyle behaviors during the design of WMSD treatment.     

Work-related factors contributing to chronic disability in low back pain

Low back pain is a costly and incapacitating musculoskeletal disorder. Prospective studies documenting the capacity of work-related factors to predict chronicity are few in number, the methodology used is very diversified, and the results obtained diverge. The aim of the present study is to investigate the capacity of work-related objective (non-psychosocial) and psychosocial factors to predict chronic disability related to low back pain. A longitudinal prospective study with two measurement times was carried out. The sample (N = 258) consisted of workers with subacute low back pain who were on sick leave and receiving compensation from the CSST (Quebec Workers' Compensation Board). Of all the work-related variables measured, perceived stress and fears and beliefs about work were associated with return to work status at the six-month follow-up. The results obtained show the importance of considering fears and beliefs about work when identifying people in the subacute phase of low back pain who are at risk of developing chronic disability.     

Study of musculoskeletal risks of the office-based surgeries

Due to the cost and time benefits associated with patients and physicians, outpatient surgeries continue to become more and more popular over time. With the increase in the number of office-based surgical procedures, the prevalence of work-related musculoskeletal disorders (WMSDs) associated with office-based surgeries has been reported. The purpose of this pilot study is to ergonomically evaluate the risk of work-related musculoskeletal disorders of physicians/surgeons performing office-based surgery (OBS). Ergonomic assessment tools included Questionnaire, the BodyMap and the Rapid Upper Limb Assessment for measuring potential ergonomic concerns. The findings have shown that the ergonomic issues of greatest concerns were the discomforts in the neck, shoulders, arms/wrists, and back. Some additional comments were provided by the participants regarding the duration of discomfort or clarification on the frequency of their body discomfort. This study suggests that there is a considerable risk of musculoskeletal injuries of physicians/surgeons performing the OBS tasks. By properly using the ergonomic assessment techniques, valuable information on ergonomic OBS workplace design and selection could assist in the early interventions of WMSD prevention.     

Musculoskeletal symptom survey among cement and concrete workers

Work in construction is associated with a high risk for musculoskeletal disorders and injuries. The symptom survey was conducted to determine the magnitude and musculoskeletal injury characteristics among the cement and concrete workers and identify the most problematic work-related activities and job factors that might have contributed to the occurrence of these disorders. Findings revealed that a large proportion of the laborers (77%) experienced at least one musculoskeletal disorder in the last year. Low back pain was reported as the most frequently experienced symptom (66%). 'Working while in pain' the concrete workers perceived as the major problem in the trade. Other problematic work-related activities included 'bending or twisting the back', 'work in hot, cold or wet conditions', and 'handling heavy objects'. Most of the laborers (82%) requested on-the-job safety training. Survey results combined with the outcomes of focus groups discussions and work site observations were used in the design of a training program aimed at the prevention of musculoskeletal morbidity in the trade. The program incorporated ergonomics principles, hazard recognition, safe work practices, problem solving and personal protection in the training curriculum for membership of the trade.     

Self-reported musculoskeletal pain and working conditions among employees in the Swedish public sector

Musculoskeletal disorders constitute a considerable public health problem, often resulting in sickness absence, particularly in public sector employees. Increased knowledge on how this is related to individual and work-related factors is required. The objective of this study was to investigate the associations between self-reported musculoskeletal pain and the following factors: physical and psychosocial work conditions, lifestyle, psychosomatic symptoms and sick leave. A comprehensive questionnaire was completed by a total of 2523 people, of which 87% were women and 13% men. The participants were employed in public hospitals, educational institutions, home care services for the elderly and domestic/catering services in a Swedish county. The response rate was 92%. Multiple logistic regression analyses showed that the high level of self-reported musculoskeletal pain was highly associated with strenuous physical and psychosocial work conditions. The physical factor with the highest odds ratio (OR) was working in a forward-bent position. High work demands was the most prominent psychosocial factor and distinctly associated with musculoskeletal pain among men. Physical work strain and other demanding working conditions, which were associated with musculoskeletal pain, were frequent among employees in home care services for the elderly and domestic/catering services. There was a strong association between long-term sick leave and high musculoskeletal pain. Furthermore, there was a strong association between a high level of musculoskeletal pain and the exhibition of psychosomatic symptoms in both women and men; this is an interaction that may intensify the total experience of illness and thus needs to be further investigated.     

Interactions between task repetition and psychosocial factors

Psychosocial factors, individual factors, workplace requirements, and workplace organizational factors have all been reported as being associated with the risk of musculoskeletal disorders [11]. Huang, Feuerstein, and Sauter [5] described the various concepts and models proposed to link occupational stress and work-related upper extremity disorders, as well as the difficulty in verifying the suggested linkages. Huang et al. [5] suggested that decomposing a complex model would be an appropriate method to begin the investigations of the proposed models. Task repetition is a workplace requirement that is considered a potential risk factor for cumulative trauma and its relationship to psychosocial factors was investigated. The study found only weak to no statistically significant relationship between task repetition and reported psychosocial factors of job stress in workers in Taiwan.     

Prevalence of discomfort/pain complaints and related factors in dental professionals of the public health service in Araucária, Paraná state, Brazil

This poster presents a study about the influence of gender related factors, age, body weight, time of service in the profession and practice of physical exercise on the prevalence of discomfort/pain complaints in dental professionals. The scope of this study was limited to 123 subjects, 84.24% of professionals in the public dental clinics, who answered the multidimensional analytical work questionnaire. The data suggest that the lack postural awareness can contribute to the maintenance of painful conditions and also the low commitment to self-care can perpetuate the state of musculoskeletal discomfort/pain, justifying the application of the ergonomics concepts in the workplace and systematic guidance to professionals to adopt a healthy lifestyle.     

Ergonomic recommendations and their role in cardiac sonography

Musculoskeletal disorders (MSDs) have been recognized as a serious hazard to the health and safety of sonographers. Recommendations have been made on ways to reduce and prevent the frequency and severity of these disorders. The purpose of this study was to ascertain the impact ergonomics has had on the prevalence of MSDs among cardiac sonographers. Three hundred randomly selected Registered Diagnostic Cardiac Sonographers were surveyed. Eighty-one respondents completed the survey. The majority of the sample population was female with an average age of 40 and job tenure between 6-15 years. Ninety percent of respondents reported musculoskeletal pain/discomfort while scanning. Seventy-three percent of respondents perceived a need for ergonomic interventions. The majority of respondents were aware of previously recommended ergonomic interventions and had implemented what was feasible. Still, the experience of pain and discomfort, and incidence of MSDs remains exceptionally high for this occupation. It appears that recommended ergonomic interventions have not had a significant impact on improving the health and safety of cardiac sonographers.     

Lean production and work-related musculoskeletal disorders: overviews of international and Swedish studies

This paper aimed at summarizing the knowledge of the relationship between Lean and work related musculoskeletal disorders (WMSD), and WMSD risk factors, in manufacturing companies. Literature search processes identified 23 publications studying this, in scientific journals. Eight included measurements of WMSD; three were mostly negative, two showed mixed results, one showed no results and two were mostly positive. Eighteen publications included measurements of WMSD risk factors; seven showed mostly negative results, eight showed mixed results, two showed mostly positive results and one was inconclusive. Three literature reviews were identified, which studied this question; two were mostly negative, while the third was inconclusive. Also, 12 publications of grey literature studying Lean and WMSD risk factors in Swedish organizations were identified; nine showed mixed results, two showed mostly positive results and one showed mostly negative results. Due to the varying quality and study design of the publications, together with the few identified studies, it is difficult to compare them. The context and the implementation also likely affect the results. The general conclusion was that a Lean implementation may increase the risk of WMSD and risk factors for WMSD, if it is not accompanied with an ergonomic intervention.     

Validation of a French Canadian version of the Organizational Policies and Practices (OPP) questionnaire

Organizational factors are potentially powerful in accounting for work-related chronic disability following a musculoskeletal disorder. This study documents the psychometric qualities of the French Canadian version of the Organizational Policies and Practices questionnaire (OPP) [1] on a population of nurses (N=124). By excluding the two items composing the ergonomic practices factor, a factorial structure identical to that obtained by the OPP's authors is obtained for the disability management policies and practices factor, the people-oriented culture factor and the safety climate factor. The internal consistency coefficients (Cronbach's alpha) are satisfactory while the coefficients intraclass are less than those obtained by the authors in the test-retest. However, the test-retest interval is greater in this study. Consistent relationships are observed between the dimensions of the OPP and three job-related psychosocial indicators: perceived stress, social support and satisfaction. This suggests a good construct validity for the OPP. Although additional validation efforts are recommended, all of the results obtained support the validity and reliability of the French Canadian version of the OPP. This version can be used to examine the importance of organizational aspects in studies on the prevention of chronic disability.     

The natural history and risk factors of musculoskeletal conditions resulting in disability among US Army personnel

We describe the natural history of 13 musculoskeletal conditions requiring hospitalization and identify demographic, behavioral, psychosocial, occupational, and clinical characteristics most strongly associated with disability discharge from the Army. Subjects included 15,268 active-duty personnel hospitalized for a common musculoskeletal condition between the years 1989-1996 who were retrospectively followed through 1997. Back conditions had the greatest 5-year cumulative risk of disability (21%, 19%, and 17% for intervertebral disc displacement, intervertebral disc degeneration, and nonspecific low back pain, respectively). Cox proportional hazards models identified the following risk factors for disability among males: lower pay grade, musculoskeletal diagnosis, shorter length of service, older age, occupational category, lower job satisfaction, recurrent musculoskeletal hospitalizations, more cigarette smoking, greater work stress, and heavier physical demands. Among females, fewer covariates reached statistical significance, although lower education level was significant in more than one model. Modifiable risk factors related to work (job satisfaction, work stress, physical demands, occupation) and health behaviors (smoking) suggest possible targets for intervention.     

Work-related musculoskeletal discomfort and injuries in Australian optometrists

Work-related musculoskeletal discomfort and injuries are reported by optometrists. The purpose of this paper is to describe the process used to investigate work-related discomfort in Australian optometrists. A multistage project was conducted which included questionnaires, interviews and onsite observations. Participants, with and without self-reported discomfort, included clinical optometrists, optometry students and clinical teachers. The various stages of the study developed over the course of the project, primarily in response to results collected at various stages. A multistage approach proved valuable for confirming results and testing hypotheses, and for investigating different groups of workers (clinicians, teachers and students). General guidelines to reduce the risk of work-related discomfort in optometrists can be developed from this project. Specific recommendations and teaching curricula have been identified in this project as areas of future research and development.     

The relationship between financial strain,perceived stress,psychological symptoms,and academic and social integration in undergraduate students

ABSTRACT

Objective: Financial strain may directly or indirectly (i.e., through perceived stress) impact students’ psychological symptoms and academic and social integration, yet few studies have tested these relationships. The authors explored the mediating effect of perceived stress on the relationship between financial strain and 2 important outcomes: psychological symptomology and academic and social integration. Participants: Participants were 157 undergraduate students. Data were collected from December 2013 to March 2014. Methods: Cross-sectional data collection conducted using online survey software. Results: It was found that perceived stress mediated the relationship between financial strain and (a) psychological symptomology and (b) academic and social integration. Both models included first-generation status as a covariate. Conclusions: Results suggest that perceived stress is an important intervention target for reducing psychological symptoms and improving academic and social integration for undergraduate students. Implications for university health centers and mental health professionals include incorporating a public health model to minimize stress risk.     

Low back pain disability and stay at work: contradiction or necessity?

The incidence of occupational diseases in the population is high and factors such as long working hours, poor posture, psychological and physical stress can contribute to its development. Among work-related musculoskeletal disorders, back pain has a high prevalence. The aim of the present study was to quantify and characterize pain complaints and to identify individuals with low back pain, in order to assess the degree of disability. Participated 226 employees of an institution of higher education. They answered a general questionnaire about location and quantification of pain complaints visual analog scale for pain and the Quebec Disability Questionnaire. Of all the workers, 69.60% had some type of musculoskeletal complaint; of those, 15.41% had low back pain. Considering workers who had back pain, 54.9% were female, 52.94% are under 30 years old and 43.14% between 1 and 5 years of work. As for the final score for the degree of disability, 41.17% had minimal disability and 37.25% moderate disability. The present study found large number of pain complaints and high prevalence of low back pain, resulting in individual's inability and difficulties in performing work activities.     

Ergonomic recommendations and their impact on child care workers' health

The purpose of this study was to determine the impact ergonomics has had on the occurrence of musculoskeletal symptoms and injuries among child care workers in Wisconsin using a Classroom and Work Methods Survey developed for this investigation. Information on perceived need for and knowledge of ergonomic interventions, the extent to which ergonomic interventions had been introduced to child care settings, and barriers to implementation of ergonomic recommendations was gathered. Two hundred and fifty-eight respondents completed the survey. The majority of respondents was aware of most (18 of 20) of the recommended ergonomic interventions for child care centers and did not perceive a need to make ergonomic changes. Although the majority of respondents had implemented 15 out of the 20 recommendations, they were currently experiencing musculoskeletal pain while performing their jobs. The results of this study highlight the need for further analysis of specific child care tasks and identification of more effective methods to reduce the risk for musculoskeletal pain and injuries.     

Occupational musculoskeletal injuries in the health care environment and its impact on occupational therapy practitioners: a systematic review

The purpose of this systematic review was to explore the occupational and personal factors associated with occupational musculoskeletal injuries among health care providers and to identify the psychosocial issues as a result of the injuries. Then, an extrapolation developed to link the potential risks to occupational therapy practitioners. The inclusion criteria that developed from ten articles was based on content from the health and social science literatures. Searches were conducted via internet databases, hard-copy search of bibliographies, and citation review of article references. This review included 22 research studies over the past fifteen years (1990-2005). Classic scientific research studies and classical readings that went beyond the specified period were also included. The review revealed that patient handling was the most common occupational factor to cause work-related injuries. Inexperience and young age were major personal factors associated with injuries. Fear, anger, isolation, inability to perform duties and leisure activities were common psychosocial issues as a result of the injuries. It was extrapolated that occupational therapy practitioners were at risk for occupational musculoskeletal injuries. Future studies are recommended to examine the prevalence and risk factors specific to occupational therapy practitioners.     

Mitigation of musculoskeletal problems and body discomfort of agricultural workers through educational intervention

Farming is a physically arduous occupation that places farm workers' at potential risk of musculoskeletal disorders, which has been observed to impose a greater impact on their health. Each activity in agriculture brings about certain stress and strain on bones and muscles leading to work-related musculoskeletal disorders which can lead to several permanent diseases and disabilities. The purpose of analyzing musculoskeletal problems among male and female workers engaged in agriculture was to know about the risk factors dangerous to health so that interventions can be planned for mitigating them thereby increasing the efficiency of work. Educational intervention included audio-visual aids as well as printed literature. It was hoped that awareness of these factors through dissemination of information would contribute at preventing hazards amongst farmers and their families. The results revealed that the workers reported very severe to severe pain in low back while performing agricultural activities. Weeding was the most strenuous activity for females and threshing crop for males. Training and education on MSDs through educational intervention proved that the knowledge of the farm workers could be enhanced and can help reduce risk of many musculoskeletal problems. It can be help in empowering the community and mitigate MSDs in agriculture.     

Evidence-based exposure criteria for work-related musculoskeletal disorders as a tool to assess physical job demands

Despite worldwide attention, musculoskeletal disorders (MSDs) remain a substantial concern at work. To support ergonomists to assess the work-related risk factors for MSDs, several instruments are available. Unfortunately, many of these instruments are not supported by evidence-based exposure criteria for particular MSDs. For effective prevention of MSDs, it is important to know to what extent work-related risk factors are present in the work situation. The Netherlands Center for Occupational Diseases (NCOD) develops evidence-based criteria documents for the assessment of work-related MSDs. The exposure criteria of these documents can be used on a group level to support ergonomists in their assessment of the physical job demands that are associated with work-related MSDs. At the moment the NCOD has exposure criteria for the assessment of 22 work-related MSDs, for instance on the work-relatedness of upper extremity disorders, non-specific low back pain or patellar tendinopathy. The use of these exposure criteria enables ergonomist to better assess the work-related risks of MSDs as a starting point for effective prevention.     

30 years of ergonomics at 3M: a case study

The added value of the Ergonomics Program at 3M was found to be improved employee safety, compliance with regulations and reduction of work-related illness, increases in productivity, and quality and operating efficiency. This paper describes the thirty years of existence of this program. For the first twenty years, the program objectives were to: respond to requests for assistance related to work-related musculoskeletal disorder (WMSD) concerns, raise employee awareness of MSDs and ergonomics; educate engineers in ergonomics design; and develop ergonomics teams at manufacturing locations. Since the year 2000, 3M's Ergonomics Program has been in transition from a US-centric and corporate-based technical-expertled program to a global program applying participatory ergonomics strategies within a macroergonomics framework. During that transition, the existing program requirements were revised, new methods and program tools were created, and expectations for implementation at the manufacturing locations clarified. This paper focuses on the company's manufacturing ergonomics program activities during the past ten years and includes specifics of the program's objectives, risk assessment reduction process, and ergonomics technical expertise development. The main benefit achieved throughout the company is reducing employee injury while also increasing productivity and operating efficiency.     

Psychosocial indicators among aircraft maintenance workers with and without neck and shoulder musculoskeletal symptoms

In the aircraft maintenance industry, most of workers performs manual handling tasks of different materials, varying from small objects up to large pieces of the aircraft. It can increase the occurrence of work-related musculoskeletal disorders (WMSDs), which are strongly associated with high physical demands required by the task. Moreover, psychosocial demands are considered as risk factors for musculoskeletal disorders in both the upper limbs and lumbar spine. Thus, the objective of this study was to assess psychosocial indicators among aircraft maintenance workers according to the presence of neck and shoulder musculoskeletal symptoms. Eighty workers of an aircraft maintenance company were evaluated (32.69 ± 8.25 years, 79.8 ± 13.4 kg, 175 ± 7 cm). According to physical examination, 50 workers were classified as asymptomatic (AS - 4.1 ± 3.17 positive signs) whilst 30 workers were classified as symptomatic (SS - 26.72 ± 11.44 positive signs). AS and SS have shown similar profile of demand (p = 0.62), control (p = 0.66) and social support (p = 0.74) according to the Job Content Questionnaire. However, the groups are different when considering work engagement variables. In general, SS have higher scores than AS (p < 0.05).