Association of individual and work-related risk factors with musculoskeletal symptoms among Iranian sewing machine operators.

This cross-sectional study evaluated working conditions and the occurrence of self-reported musculoskeletal symptoms among 251 Iranian sewing machine operators. A questionnaire and direct observations of working postures using the rapid upper limb assessment (RULA) method were used. A high prevalence of musculoskeletal symptoms, particularly in the neck/shoulders, back and hands/wrists were found. The mean RULA grand score of 5.7 highlighted a poor sewing workstation design and indicated that most operators (with posture assessed at action level 3) needed an investigation and changes in their working habits soon. Work-related factors (including number of years worked as an operator, prolonged working hours per shift, long duration of sitting work without a break, feeling pressure due to work and working postures) and individual factors (including age, gender, BMI and regular sport/physical activities) were associated with musculoskeletal symptoms in multiple logistic regression models. The findings add to the understanding of working conditions of those jobs involving sewing activities and emphasise the need for ergonomic interventions to reduce musculoskeletal symptoms in the future.

[1]  M. McCann.  Hazards in cottage industries in developing countries , 1996 .

[2]  Iman Dianat,et al.  Ergonomics/Human factors needs of an ageing workforce in the manufacturing sector. , 2012, Health promotion perspectives.

[3]  Jalil Nazari,et al.  Working Conditions in Carpet Weaving Workshops and Muscu-loskeletal Complaints among Workers in Tabriz - Iran. , 2012, Health promotion perspectives.

[4]  Rita de Cassia Clark Teodoroski,et al.  Old scissors to industrial automation: the impact of technologic evolution on worker's health. , 2012, Work.

[5]  M. Asghari-Jafarabadi,et al.  Neck, shoulder and low back pain in secondary schoolchildren in relation to schoolbag carriage: should the recommended weight limits be gender-specific? , 2014, Applied ergonomics.

[6]  R. Scott,et al.  Computer terminal work and the benefit of microbreaks. , 2001, Applied ergonomics.

[7]  S Zoloth,et al.  Impact of a joint labor-management ergonomics program on upper extremity musculoskeletal symptoms among garment workers. , 2001, Applied ergonomics.

[8]  R. Jeffrey Lewis,et al.  Musculoskeletal disorder worker compensation costs and injuries before and after an office ergonomics program , 2002 .

[9]  Nilüfer Öztürk,et al.  Investigation of musculoskeletal symptoms and ergonomic risk factors among female sewing machine operators in Turkey , 2011 .

[10]  Jason Devereux,et al.  The combined effect of physical, psychosocial/organisational and/or environmental risk factors on the presence of work-related musculoskeletal symptoms and its consequences. , 2014, Applied ergonomics.

[11]  O J Sealetsa,et al.  Ergonomics issues among sewing machine operators in the textile manufacturing industry in Botswana. , 2011, Work.

[12]  R H Westgaard,et al.  Individual and work related factors associated with symptoms of musculoskeletal complaints. II. Different risk factors among sewing machine operators. , 1992, British journal of industrial medicine.

[13]  Maxwell Fogleman,et al.  Factors associated with self-reported musculoskeletal discomfort in video display terminal (VDT) users , 2002 .

[14]  Iman Dianat,et al.  Working conditions of Iranian hand-sewn shoe workers and associations with musculoskeletal symptoms , 2014, Ergonomics.

[15]  N. Jimmieson,et al.  Associations between individual and workplace risk factors for self-reported neck pain and disability among female office workers. , 2008, Applied ergonomics.

[16]  Shrawan Kumar,et al.  Effects of progressive levels of industrial automation on force and repetitive movements of the wrist , 2000 .

[17]  Karl H.E. Kroemer.  Fitting the human : introduction to ergonomics , 2009 .

[18]  J Chan,et al.  Work-organisational and personal factors associated with upper body musculoskeletal disorders among sewing machine operators , 2007, Occupational and Environmental Medicine.

[19]  B. Jonsson,et al.  Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms. , 1987, Applied ergonomics.

[20]  I. Oh,et al.  The economic burden of musculoskeletal disease in Korea: A cross sectional study , 2011, BMC musculoskeletal disorders.

[21]  F. Greco,et al.  Investigation of work-related disorders in truck drivers using RULA method. , 2003, Applied ergonomics.

[22]  L McAtamney,et al.  RULA: a survey method for the investigation of work-related upper limb disorders. , 1993, Applied ergonomics.

[23]  The use of schoolbags and musculoskeletal symptoms among primary school children: are the recommended weight limits adequate? , 2013, Ergonomics.

[24]  Alex W Stedmon,et al.  Using pliers in assembly work: short and long task duration effects of gloves on hand performance capabilities and subjective assessments of discomfort and ease of tool manipulation. , 2012, Applied ergonomics.

[25]  A. J. van der Beek,et al.  The relation between body mass index and musculoskeletal symptoms in the working population , 2013, BMC Musculoskeletal Disorders.

[26]  C M Haslegrave,et al.  Factors affecting posture for machine sewing tasks: the need for changes in sewing machine design. , 1995, Applied ergonomics.

[27]  P. Buckle,et al.  The nature of work-related neck and upper limb musculoskeletal disorders. , 2002, Applied ergonomics.

[28]  Tsuyoshi Kawakami,et al.  Low-cost work improvements that can reduce the risk of musculoskeletal disorders , 2003 .

[29]  P. Buckle,et al.  Current techniques for assessing physical exposure to work-related musculoskeletal risks, with emphasis on posture-based methods. , 1999, Ergonomics.

[30]  Mario Ferreira,et al.  Computer-telephone interactive tasks: predictors of musculoskeletal disorders according to work analysis and workers' perception. , 2002, Applied ergonomics.

[31]  Enrico Occhipinti,et al.  Preventing upper limb work-related musculoskeletal disorders (UL-WMSDS): new approaches in job (re)design and current trends in standardization. , 2006, Applied ergonomics.

[32]  J N Serratos-Perez,et al.  Musculoskeletal disorders among male sewing machine operators in shoemaking. , 1993, Ergonomics.

[33]  Y. Roquelaure,et al.  Active epidemiological surveillance of musculoskeletal disorders in a shoe factory , 2002, Occupational and environmental medicine.