Document Detail

Supplementary breaks and stretching exercises for data entry operators: a follow-up field study.
MedLine Citation:
PMID:  17514726     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: This study expanded previous NIOSH-IRS research examining the effects of rest breaks and stretching exercises on symptoms and performance in data-entry workers. METHODS: All workers spent 4 weeks with conventional breaks (two 15 min breaks per day) and 4 weeks with supplementary breaks (two 15 min breaks plus four 5 min breaks per day). One-half were assigned at random to a group instructed to perform brief stretching exercises during breaks. The remainder comprised the "no stretching" (control) group. RESULTS: 51 workers (stretch group n = 21; no stretch group n = 30) completed the study symptom questionnaires. Discomfort and eyestrain were significantly lower with supplementary breaks, and supplementary breaks attenuated accumulation of discomfort and eyestrain during work sessions. Data-entry speed was significantly faster with supplementary breaks so that work output was maintained, despite replacing 20 min of work time with break time. In the stretch group, workers reported stretching during only 25% of conventional breaks and 39% of supplementary breaks, and no significant effects of stretching on discomfort or performance were observed. CONCLUSIONS: These results provide further converging evidence that supplementary breaks reliably minimize discomfort and eyestrain without impairing productivity. Low compliance in performing stretches prevented valid assessment of stretching effects. Further research on stretching exercises and exercise compliance is warranted.
Traci Galinsky; Naomi Swanson; Steven Sauter; Robin Dunkin; Joseph Hurrell; Lawrence Schleifer
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  American journal of industrial medicine     Volume:  50     ISSN:  0271-3586     ISO Abbreviation:  Am. J. Ind. Med.     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-06-18     Completed Date:  2007-08-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8101110     Medline TA:  Am J Ind Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  519-27     Citation Subset:  IM    
National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA.
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MeSH Terms
Asthenopia / etiology,  prevention & control*
Computer Terminals*
Follow-Up Studies
Middle Aged
Musculoskeletal Diseases / etiology,  prevention & control*
Occupational Diseases / etiology,  prevention & control*
Personnel Staffing and Scheduling*
Task Performance and Analysis
United States

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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