Evaluation of Two Self-Managed Rest Break Systems for VDT Users
| Autor: | Jason I. Guttman, Robert Henning, Eric A. Callaghan, Heather A. Braun |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Rest break
medicine.medical_specialty 05 social sciences Control (management) Cognition 050105 experimental psychology Task (project management) Medical Terminology Mood Physical medicine and rehabilitation Human–computer interaction Rest (finance) Breathing medicine Heart rate variability 0501 psychology and cognitive sciences Psychology 050107 human factors Medical Assisting and Transcription |
| Zdroj: | Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 39:780-784 |
| ISSN: | 1071-1813 2169-5067 |
| DOI: | 10.1177/154193129503901207 |
| Popis: | Two self-managed rest break systems for video display terminal (VDT) users were evaluated using measures of heart rate and heart rate variability, breathing, and work-physiological synchronization in addition to conventional measures of performance, mood, user acceptance, and musculoskeletal discomfort. Undergraduate typists (N=30) entered lines of randomized words during a 55-min work period. Cognitive demand was increased by having typists reverse-type a specified word in each line. In the feedback condition, typists were continuously informed of the discrepancy between a target rest break standard of 30 s every 8 min and their discretionary rest breaks. This feedback information was absent in the control condition. Management of discretionary rest breaks was better in the feedback condition and VDT users reported less task disruption and lower back discomfort. Time-related trends in performance and physiological response reflected behavioral changes associated with fatigue, but did not differentiate between experimental conditions. The lack of adverse psychophysiological responses in the feedback condition supports the conclusion that continuous feedback about rest break behavior can help VDT users self-manage discretionary rest breaks, with no untoward effects on performance or well-being. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|