Object shape affects hand grip function for heavy objects in younger and older adults

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dc.citation.firstpage722
dc.citation.issueNumber6
dc.citation.journalTitleErgonomics
dc.citation.lastpage732
dc.citation.volumeNumber64
dc.contributor.authorCruz, Jazmin
dc.contributor.authorGarcia, Mario
dc.contributor.authorGarza, Cecilia
dc.contributor.authorDeLucia, Patricia R.
dc.contributor.authorYang, James
dc.contributor.funderNational Science Foundation, Award #1853936
dc.date.accessioned2021-12-01T18:36:41Z
dc.date.available2021-12-01T18:36:41Z
dc.date.issued2021
dc.description.abstractHand-grip function while lifting objects is essential for performing everyday tasks. The Box and Block Test (BBT) has been used to assess hand-grip function and dexterity, but only light objects have been used. The purpose of this study was to investigate the effects of block surface, shape, age, and sex on hand dexterity during the movement of heavy blocks in the BBT. Forty healthy participants comprised of a younger group of 10 males (M =  22.50 years, SD = 2.01) and 10 females (M  =  22.20 years, SD = 2.66) between 20 and 30-years-old, and an older group of 10 males (M = 55.80 years, SD = 3.19) and 10 females (M = 55.90 years, SD = 2.56) between 50 and 60-years-old, performed the BBT using steel objects of different shapes (cylindrical and cubic) and different surfaces (plain steel, black spray-painted steel, and yellow non-slip spray-painted steel). The results indicated that repetition and shape had significant effects on the BBT score. Previous researchers have found that surface textures, age, and sex influenced hand dexterity for light objects, but these effects were not discovered in the current study. These findings suggest that shape should take priority over age, sex, and surface texture when designing tools to improve user handling.
dc.identifier.citationCruz, Jazmin, Garcia, Mario, Garza, Cecilia, et al.. "Object shape affects hand grip function for heavy objects in younger and older adults." <i>Ergonomics,</i> 64, no. 6 (2021) Taylor & Francis: 722-732. https://doi.org/10.1080/00140139.2020.1865576.
dc.identifier.doihttps://doi.org/10.1080/00140139.2020.1865576
dc.identifier.urihttps://hdl.handle.net/1911/111702
dc.language.isoeng
dc.publisherTaylor & Francis
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Taylor & Francis.
dc.titleObject shape affects hand grip function for heavy objects in younger and older adults
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpost-print
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