BIROn - Birkbeck Institutional Research Online

    The precision of the human hand: variability in pinch strength and manual dexterity

    Bardo, A. and Town, K. and Kivell, T. and Donati, G. and Ballieux, H. and STAMATE, Cosmin and Edginton, T. and Forrester, Gillian (2022) The precision of the human hand: variability in pinch strength and manual dexterity. Symmetry 14 (1), p. 71. ISSN 2073-8994.

    [img]
    Preview
    Text
    47252.pdf - Published Version of Record
    Available under License Creative Commons Attribution.

    Download (2MB) | Preview

    Abstract

    Changes in hand morphology throughout human evolution have facilitated the use of forceful pad-to-pad precision grips, contributing to the development of fine motor movement and dexterous manipulation typical of modern humans. Today, variation in human hand function may be affected by demographic and/or lifestyle factors, but these remain largely unexplored. We measured pinch grip strength and dexterity in a heterogeneous cross-sectional sample of human participants (n = 556) to test for the potential effects of sex, age, hand asymmetries, hand morphology, and frequently practiced manual activities across the lifespan. We found a significant effect of sex on pinch strength, dexterity, and different directional asymmetries, with the practice of manual musical instruments, significantly increasing female dexterity for both hands. Males and females with wider hands were also stronger, but not more precise, than those with longer hands, while the thumb-index ratio had no effect. Hand dominance asymmetry further had a significant effect on dexterity but not on pinch strength. These results indicate that different patterns of hand asymmetries and hand function are influenced in part by life experiences, improving our understanding of the link between hand form and function and offering a referential context for interpreting the evolution of human dexterity. View Full-Text

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): hand asymmetries, functional morphology, hand size, hand shape, pinch grip, performance, peg-board task
    School: School of Science > Psychological Sciences
    Depositing User: Gillian Forrester
    Date Deposited: 14 Mar 2022 13:35
    Last Modified: 04 Jul 2022 12:46
    URI: https://eprints.bbk.ac.uk/id/eprint/47252

    Statistics

    Activity Overview
    6 month trend
    0Downloads
    6 month trend
    0Hits

    Additional statistics are available via IRStats2.

    Archive Staff Only (login required)

    Edit/View Item Edit/View Item