Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 21680
  Title The effect of interventions based on transtheoretical modelling of computer operators’ postural habits [randomized controlled trial]
URL http://dx.doi.org/doi:10.1016/j.clch.2010.07.001
Journal Clin Chiropr. 2011 Mar;14(1):17-28
Author(s)
Subject(s)
Peer Review Yes
Publication Type Randomized Controlled Trial
Abstract/Notes Objective: To determine the effectiveness of ergonomic training on postural habits and computer operators’ psychosocial mediating variables based on the transtheoretical model (TTM).

Design: A prospective randomized controlled trial.

Setting: Departments of two universities in Qazvin, Iran.

Participants: One hundred and thirty-four of operators, mean age 31.0 ± 7.2 years, who worked at a computer for a minimum of 20 h per week. The subjects were divided into intervention (n = 67) and control (n = 67) groups.

Intervention: The intervention group received a TTM-based intervention involving eight 2-h sessions, which included 45–60 min stage-matched ergonomic counseling, ergonomic behavior training, and a package of training materials comprising a facilitator's handbook and a handout regarding computer ergonomic guidelines (Ergo-Guidelines).

Outcome measures: Ergonomic knowledge, stage of change, self-efficacy, pros and cons, preventive behavior and rapid upper limb assessment (RULA) scores were measured at baseline, 3- and 6-month post-ergonomics training.

Results: Although both groups were homogeneous in all variables at baseline, the intervention group showed significant improvements in stages of change (P < 0.001), ergonomic knowledge (P < 0.001), pros (P < 0.05), cons (P < 0.05) and self-efficacy (P < 0.05). A significant decrease in RULA score was observed for the intervention groups; however, intervention did not significantly improve RULA.

Conclusions: Results from this study provide evidence that TTM-based ergonomic training among computer operators can improve postural risk factors for musculoskeletal disorders (MSDs).

This abstract is reproduced with the permission of the publisher; full text by subscription.


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