According to an article in Applied Ergonomics in the forthcoming issue, a group of 60 workers received both office training and an automatic frequent-feedback system that displayed a webcam photo of a worker's current sitting posture alongside the correct posture photo taken during office training.
The results showed that both training methods provided effective short-term posture improvement; however, sustained improvement was only attained with the photo-training method. Both interventions had a greater effect on older workers and on workers suffering more musculoskeletal pain. The photo-training method had a greater positive effect on women than on men.
"To maintain the effectiveness of an ergonomic intervention for the long term, the intervention should be a continuous process, which includes frequent feedback," the researchers explain. "This new ergonomic method can also result in preventing MSD among workers and reduce financial loss to their employers."
The method of frequent and continuous feedback using photos was found to be effective in improving the sitting posture of computer workers over time. These conclusions have direct implications for many workers in industry and services.
It is recommended that such self-modeling, photo-training software be installed on the worker's computer to provide frequent and long-term feedback. The research suggests that this should be implemented in addition to the conventional office ergonomic intervention that combines specialized ergonomic training and workstation adjustments.
In light of the differences in effect between men and women, combining supplementary feedback targeted to different audiences should be considered. For example, it is recommended to consider adding more detailed feedback that would call attention to deviations from the desired pose for each of the body segments, and evaluate its deferential effect on both genders over the long term.
The multidisciplinary team of researchers included Dr. Meirav Taieb-Maimon and Prof. Bracha Shapira from BGU's Department of Information Systems Engineering, Prof. Julie Cwikel of the Center for Women's Health Studies and Promotion, Dr. Ella Kordish from occupational health and epidemiology and Dr. Naftali Liebermann from orthopedic surgery at Soroka University Medical Center. This study was funded by a grant from Israel's Ministry of Industry, Trade and Labor to support the incorporation of video and computer-based technology to address occupational health problems.Meirav Taieb-Maimona, ,, Julie Cwikelb, Bracha Shapiraa and Ido Orensteina
b Center for Women's Health Studies and Promotion, Ben-Gurion University of the Negev, POB 653, Beer Sheva 84105, Israel
About American Associates, Ben-Gurion University of the Negev
American Associates, Ben-Gurion University of the Negev (AABGU) plays a vital role in sustaining David Ben-Gurion's vision, creating a world-class institution of education and research in the Israeli desert, nurturing the Negev community and sharing the University's expertise locally and around the globe. With some 20,000 students on campuses in Beer-Sheva, Sede Boqer and Eilat in Israel's southern desert, BGU is a university with a conscience, where the highest academic standards are integrated with community involvement, committed to sustainable development of the Negev. AABGU is headquartered in Manhattan and has nine regional offices throughout the U.S.
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