Work Ergonomic Hazards for Musculoskeletal Pain among University Office Workers
Keywords:Musculoskeletal pain, office workers, ergonomic
This cross-sectional analytic study aimed to investigate ergonomic hazards in the workplace for musculoskeletal pain among university office workers. There were 142 full-time office staff from Khon Kaen University. Demographic characteristics and musculoskeletal pain were evaluated from a structured questionnaire. Ergonomic workstations, i.e. size of table, seat, work area and illuminations were measured at the workstations and anthropometric parameters were determined. Descriptive statistics were used for data analysis which were percentage, mean, and standard deviation. Inferential statistics were chi-square test and the student t-test at 95 % confidence interval. The results showed that 81.7 % of office workers were female, the mean age was 38.0 ± 10.0 years, the average work experience was 12.3 ± 10.8 years. One-month prevalence of musculoskeletal pain was 69.0 %. The onset of symptoms was during working hours and the majorly reported the cause as prolonged sitting in the same posture at work (73.3 %). From measurements, 55.8 % of all workstations had insufficient illumination being lower than the minimum standard requirement (400 lux). Most workstations (75.6 %) had significantly inappropriate height (above elbow height of workers) at p < 0.001. From questionnaires, the seat height was significantly associated with musculoskeletal pain (p = 0.034). Moreover, anthropometric characteristics of musculoskeletal pain cases (i.e. buttock-popliteal length, hip breadth, sitting elbow height) were significantly different from healthy office workers (p < 0.05). The findings suggest that ergonomic workstations need to be improved appropriately for individual workers and improvements in working conditions following standard requirements should be considered.
GBJ Andersson. Epidemiological features of chronic low-back pain. Lancet 1999; 354, 581-5.
TT Chiu, WY Ku, MH Lee, WK Sum, MP Wan, CY Wong and CK Yuen. A study on the prevalence of and risk factors for neck pain among university academic in Hong Kong. J. Occup. Rehabil. 2002; 12, 77-91.
K Kamwendo, SJ Linton and U Moritz. Neck and shoulder disorders in medical secretaries. Part I. Pain prevalence and risk factors. Scand. J. Rehabil. Med. 1991; 23, 127-33.
P Spyropoulos, G Papathanasiou, G Georgoudis, E Chronopoulos, H Koutis, and F Koumoutsou. Prevalence of low musculoskeletal pain in Greek public office workers, Available at: http://www.painphysicianjournal.com, accessed July 2009.
H Tsuboi, K Takeuchi, M Watanabe, R Hori, and F Kobayashi. Psychosocial factors related to musculoskeletal pain among school personnel in Nagoya, Japan. Japan Industrial Health 2001; 40, 266-71.
K Fredriksson, L Alfredsson, G Ahlberg, M Josephson, A Kilbom, EW Jelm, C Wiktorin and E Vingard. Work environment and neck and shoulder pain: the influence of exposure time. Results from a population based case-control study. Occup. Environ. Med. 2002; 59, 182-8.
SJ Linton. A review of psychosocial risk factors in back and neck pain. Spine 2000; 25, 1148-56.
S Chaiklieng, P Suggaravetsiri., Y Boonprakob, and B Muktabhant. Prevalence of back pain among office workers and work environmental risk factors at Khon Kaen University. Safety and Environment Review 2009; 19, 11-8.
N Maniadakis and A Gray. The economic burden of musculoskeletal pain in UK. Pain 2000; 84, 95-103.
Anthropometry, Available at: http://personal.cityu.edu.hk/~meachan /online%20Anthropometry/Chapter5/Ch5-5.htm, accessed September 2009.
Centers for Disease Control and Prevention (CDC). Body measurement (Anthropometry) Manual. Available at: http://www.cdc.gov/ ncsh/data/nhanes/nhanes3/cdrom/ncsh/ manuals/anthro.pdf, accessed September 2009.
Department of Health, Ministry of Public Health. Devision of Nutrition [online], Available at: http://nutrition.anamai.moph.go.th, accessed March 2009.
Department of Labour Protection and Welfare, Ministry of Labour, Thailand. Regulation on the standard of management of safety, occupational health and work environment; heat, light and sound, version 2006 Available at: http://www.labour. go.th/law/index.htm, accessed March 2009.
U.S Department of Labor Occupational Safety and Health Administration (OSHA). Good working position, Available at: http://www.osha.gov/SLTC/etools/computerworkstations/positions.html, accessed March 2009.
J McBeth and K Jones. Epidemiology of chronic musculoskeletal pain. Best. Pract. Res. Cl. Rh. 2007; 21, 403-25.
M Harreby, B Nygaard, T Jesse, E Larsen, A Storr-Paulsen, A Lindahl, I Fisker and E Laegaard. Risk factors for low back pain in a cohort of 1389 Danish school children: an epidemiology. Eur. Spine J. 1999; 8, 444-50.
S Haynes and K Williams. Socio-economic differences in the prevalence of acute, chronic and disabling chronic pain among ageing employees. Pain 2008; 114, 364-71.
JM Hush, CG Maher and KM Refschalke. Risk factors for neck pain in office workers: a prospective study. BMC Musculoskelet. Di. 2006; 7, 1471-4.
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