| Individual finger contribution in submaximal voluntary contraction of gripping. | |
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MedLine Citation:
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PMID: 22026950 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The objective of this study was to evaluate individual finger force and contribution to a gripping force, the difference between actual and expected finger forces and subjective discomfort rating at 10 different submaximal voluntary contraction (%MVC) levels (10-100% in 10 increments). Seventy-two participants randomly exerted gripping force with a multi-finger force measurement system. The individual finger force, gripping force and discomfort increased as %MVC levels increased. The middle and ring fingers exerted more force and contributed to a gripping force more than the index and little fingers due to their larger mass fractions of the digit flexor muscles. It was apparent at <50% MVC; however, the index finger increased its contribution and exerted even more force than expected at more than 50% MVC. Subjective discomfort supported the results of the objective measures. This could explain the conflicting findings between index and ring fingers in previous finger contribution studies. Statement of Relevance: Hand tool design is of special interest in ergonomics due to its association with musculoskeletal disorders in the hand. This study reveals a different contribution pattern of the fingers in submaximal voluntary contraction of gripping exertion. |
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Authors:
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Yong-Ku Kong; Kyung-Sun Lee; Dae-Min Kim; Myung-Chul Jung |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Ergonomics Volume: 54 ISSN: 1366-5847 ISO Abbreviation: Ergonomics Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-10-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0373220 Medline TA: Ergonomics Country: England |
Other Details:
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Languages: eng Pagination: 1072-80 Citation Subset: IM; S |
Affiliation:
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a Department of Industrial Engineering , Sungkyunkwan University , Suwon , South Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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