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Multi dimensional system for evaluating preventive program for upper extremity disorders among computer operators.

Yafa Levanon1, Amit Gefen, Yehuda Lerman

  • 1Tel Aviv University, Ramat Aviv, Tel Aviv, Israel. yafil@post.tau.ac.il

Work (Reading, Mass.)
|February 10, 2012
PubMed
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This study found that workplace ergonomic interventions effectively reduced musculoskeletal complaints (MSCs) and pain in computer workers. Biofeedback did not offer unique benefits over other ergonomic approaches.

Area of Science:

  • Occupational Health
  • Ergonomics
  • Musculoskeletal Disorders

Background:

  • Typing and computer work are linked to musculoskeletal complaints (MSCs).
  • Many ergonomic interventions lack strong evidence for effectiveness.
  • Reducing risk factors for MSCs is crucial for computer workers.

Purpose of the Study:

  • To evaluate the efficacy of a workplace intervention in reducing MSCs among computer workers.
  • To compare interventions with and without biofeedback against a control group.
  • To assess the impact on pain, posture, kinematics, muscle activity, and psychosocial status.

Main Methods:

  • 66 computer workers were randomly assigned to three groups: ergonomic intervention with biofeedback, ergonomic intervention without biofeedback, and a control group.

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  • Advanced assessments included pain severity and location, posture analysis, upper extremity 3D kinematics, muscle activity, and psychosocial status.
  • Intervention efficacy was measured by comparing pre- and post-intervention data and differences between groups.

    • Main Results:

    • Significant improvements were observed in pain, posture, and motion following the intervention.
    • Both intervention groups showed significant differences compared to the control group.
    • Ergonomic intervention with biofeedback did not demonstrate superior results compared to interventions without biofeedback.

    Conclusions:

    • The proposed workplace ergonomic intervention program is effective in reducing pain among computer workers.
    • Ergonomic interventions can improve posture and motion, thereby mitigating MSCs.
    • Biofeedback does not provide additional unique benefits to standard ergonomic interventions for computer workers.