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

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dc.citation.firstpage722en_US
dc.citation.issueNumber6en_US
dc.citation.journalTitleErgonomicsen_US
dc.citation.lastpage732en_US
dc.citation.volumeNumber64en_US
dc.contributor.authorCruz, Jazminen_US
dc.contributor.authorGarcia, Marioen_US
dc.contributor.authorGarza, Ceciliaen_US
dc.contributor.authorDeLucia, Patricia R.en_US
dc.contributor.authorYang, Jamesen_US
dc.contributor.funderNational Science Foundation, Award #1853936en_US
dc.date.accessioned2021-12-01T18:36:41Zen_US
dc.date.available2021-12-01T18:36:41Zen_US
dc.date.issued2021en_US
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.en_US
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.en_US
dc.identifier.doihttps://doi.org/10.1080/00140139.2020.1865576en_US
dc.identifier.urihttps://hdl.handle.net/1911/111702en_US
dc.language.isoengen_US
dc.publisherTaylor & Francisen_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Taylor & Francis.en_US
dc.titleObject shape affects hand grip function for heavy objects in younger and older adultsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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