The relationships between musculoskeletal symptoms and both video display terminal (VDT) use and occupational psychosocial stress were assessed among women office workers by self-administered questionnaires. Significantly increased odds ratios for neck or shoulder symptoms were observed for subjects who had ever used a VDT, had less job security, and had more stressful work during the 2 weeks prior to completion of the questionnaire. Significantly increased odds ratios for arm and hand symptoms were observed for subjects who had used a VDT for more than 6 years, reported a very crowded workplace, or reported very stressful work during the 2 weeks prior to completion of the questionnaire. Among current non-users, those who previously used VDTs were more likely to report upper extremity musculoskeletal symptoms than those who had never used VDTs. This suggests that individuals with symptoms may be more likely to reduce their VDT usage, distorting results of cross-sectional studies.
"These factors affect increasing risk of upper body musculoskeletal symptoms. Using VDTs for long duration, a very crowded workplace, or stressful work are known as risk factors for musculoskeletal symptoms (Marcus and Gerr, 1996). "
"The upper quadrant pain is associated to both physical and psychosocial factors in a working environment (Sim, 2006, Walker-Bone, 2006). A high prevalence of neck, shoulders and upper limbs disorders have been highlighted in specific categories of workers, where a relation between work position and time spent to work without stopping is probable (Faucett, 1994; Marcus, 1996; Battevi, 2006). This is the case of the workers of the fishing industry (Nordander, 1999), colonoscopists (Battevi, 2006; Bushchbacher, 1994, O'Sullivan, 2002), dentists and dental hygienists (Alexopoulos, 2004; Sartorio, 2005). "
[Show abstract][Hide abstract] ABSTRACT: Many musculoskeletal disorders are work-related. For the success of treatment, it is essential to promptly recognize these cases and introduce a specific intervention able to act on the causes. In Literature many activities predisposing workers to incorrect posture and long maintained attitudes are highlighted. The professionals involved in dental hygiene are among these. For these patients it is not sufficient to just reduce pain, but it is necessary to have a broader approach to rehabilitation, which can also act on neuromuscular imbalances induced by work. The article describes the case of a dental hygienist with upper quadrant disorders treated by physiotherapy and education. Particular importance during treatment was given to postural re-education. The treatment lasted two months (8 sessions, 1 session per week). The outcomes introduced were Visual Analogue Scale, VAS (70/100 at the beginning and 0/100 at the end of treatment) and Neck Pain and Disability Scale, NPDS (62.5/100 at the beginning and 3/100 at the end of treatment); at 12-month follow-up, VAS was 10/100 and NPDS was 19/100. A multimodal rehabilitation, with emphasis to musculoskeletal imbalance correction, proved to be useful in a patient who maintained prolonged flexion and rotation of the spine, front shoulder closure, and arm suspension due to occupational daily activities. The improvements lasted over time.
Giornale italiano di medicina del lavoro ed ergonomia 10/2009; 31(4):407-13.
"With over 45,000,000 computers in US workplaces, concerns exist about an escalation in the incidence of computer-related WMSDs (Tittiranonda et al., 1999). Studies have revealed a variety of contributing factors to musculoskeletal discomfort including: increased job demands and more hours working at a computer (e.g., Bernard et al., 1994; Faucett and Rempel, 1994), increased levels of psychological stress (e.g., Bongers et al., 1993; Carayon and Smith, 2000; Marcus and Gerr, 1996; Faucett and Rempel, 1994), and a lack of specific ergonomic features in the workstations and office buildings (e.g., Nelson and Silverstein, 1998; Sauter et al., 1990). "
[Show abstract][Hide abstract] ABSTRACT: A large-scale field intervention study was undertaken to examine the effects of office ergonomics training coupled with a highly adjustable chair on office workers' knowledge and musculoskeletal risks. Office workers were assigned to one of three study groups: a group receiving the training and adjustable chair (n=96), a training-only group (n=63), and a control group (n=57). The office ergonomics training program was created using an instructional systems design model. A pre/post-training knowledge test was administered to all those who attended the training. Body postures and workstation set-ups were observed before and after the intervention. Perceived control over the physical work environment was higher for both intervention groups as compared to workers in the control group. A significant increase in overall ergonomic knowledge was observed for the intervention groups. Both intervention groups exhibited higher level behavioral translation and had lower musculoskeletal risk than the control group.
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