An ergonomic evaluation in the use of computers at a corporate office

Introduction
Workshops on Computer Workstation Ergonomics(CWE) along with Workplace Illumination Assessment & its rectification are useful tools to prevent musculoskeletal disorders & reduce eyestrain.

Methods
An ergonomic evaluation was conducted in a corporate office in 2009 to assess faulty work postures & illumination levels at computer workstations (n=146) & ascertain the subjects’ symptomatology regarding visual complaints & thereby provide suitable cost-effective modifications. A pre-tested questionnaire eliciting symptoms was circulated amongst participants. For objective assessments anthropometric & goniometric measurements were recorded. An ophthalmologist conducted eye checkups. For evaluation of visual complaints, study sample was divided into two groups, one comprising of computer workstations (CWS) where illumination was >500 Lux (n=62, Group 1) and other where illumination was <500 Lux (n=84, Group 2). A detailed mapping to identify pockets of excess illumination & position & direction of overhead lighting was undertaken.

Results
Excess illumination was recorded at 62 CWS (42.46%). Individual cabins with windows had highest illumination. Group 1 had increased symptomatology pertaining to visual strain (31%) & fatigue (29%) as compared to Group 2, differences being statistically significant. These alarming figures emphasise importance of Workplace Illumination Assessment & its rectification. The authors recommend training programs on workstation ergonomics for preventing musculoskeletal disorders.
The impact of workshops in creating awareness on ergonomics & posture correction was studied in a sample of 100 employees in Oct 2010, revealing 90% were aware that abnormal posture causes musculoskeletal disorders, 73% took care of work posture & 68% took rest breaks.

Discussion
Hence above initiatives & interactive intranet portal on CWE are useful tools to correct faulty work postures, preventing musculoskeletal disorders & eye-strain. A self-help ergonomic tool kit may prove extremely useful on the intranet site of the organization providing guidelines on safe use of computers (with digital movie clips).This toolkit will be presented & shared.