Work-Related Symptoms And Checkstand Configuration: An Experimental Study

Philip Harber, Donald Bloswick, John Luo, John Beck, Debbie Greer, Laura F. Pena

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Supermarket checkers are known to be at risk of upper-ex-tremity cumulative trauma disorders. Forty-two experienced checkers checked a standard “market basket” of items on an experimental checkstand. The counter height could be adjusted (high = 35.5, low = 31.5 inches), and the pre-scan queuing area length (between conveyor belt and laser scanner) could be set to “near” or far” lengths. Each subject scanned under the high-near, high-far, low-near, and low-far conditions in random order. Seven ordinal symptom scales were used to describe comfort. Analysis showed that both counter height and queuing length had significant effects on symptoms. Furthermore, the height of the subject affected the degree and direction of the impact of the checkstand configuration differences. The study suggests that optimization of design may be experimentally evaluated, that modification of postural as well as frequency loading may be beneficial, and that adjustability for the individual may be advisable.

Original languageEnglish (US)
Pages (from-to)371-375
Number of pages5
JournalAmerican Industrial Hygiene Association Journal
Issue number7
StatePublished - 1993

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


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