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The vertical excursion of the body visceral mass during vertical jumps is affected by specific respiratory maneuver


Reference:

Cazzola, D., Alberti, G., Ongaro, L. and Minetti, A. E., 2014. The vertical excursion of the body visceral mass during vertical jumps is affected by specific respiratory maneuver. Human Movement Science, 33 (1), pp. 369-380.

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    Official URL:

    http://dx.doi.org/10.1016/j.humov.2013.10.008

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    Abstract

    Most of the inverse modelling of body dynamics in sports assumes that every segment is ‘rigid’ and moves ‘as a whole’, although we know that uncontrolled wobbling masses exist and in specific condition their motion should be optimised, both in engineering and biology. The visceral mass movement within the trunk segment potentially interferes with respiration and motion acts such as locomotion or jumping. The aim of this paper is to refine and expand a previously published methodology to estimate that relative motion by testing its ability to detect the reduced vertical viscera excursion within the trunk. In fact, a respiratory-assisted jumping strategy is expected to limit viscera motion stiffening the abdominal content of the bouncing body. Six subjects were analysed, by using inverse dynamics incorporating wobbling masses, during repeated vertical jumps performed before and after a specific respiratory training period. The viscera excursion, which showed consistent intra-individual time courses, decreased by about 30% when the subjects had become familiarized with the trunk-stiffening maneuver. We conclude that: (1) present methodology proved to detect subtle visceral mass mass movement within the trunk during repetitive motor acts and, particularly, (2) a newly proposed respiratory maneuver/training devoted to stiffening the trunk segment can reduce viscera vertical displacement.

    Details

    Item Type Articles
    CreatorsCazzola, D., Alberti, G., Ongaro, L. and Minetti, A. E.
    DOI10.1016/j.humov.2013.10.008
    Related URLs
    URLURL Type
    http://www.scopus.com/inward/record.url?scp=84894497997&partnerID=8YFLogxKUNSPECIFIED
    Uncontrolled Keywordssoft tissue,stiffness,respiratory couplings,inverse dynamics,physiology (medical)
    DepartmentsFaculty of Humanities & Social Sciences > Health
    Research CentresEPSRC Centre for Doctoral Training in Statistical Mathematics (SAMBa)
    Publisher StatementPre_Print_THE_VERTICAL_EXCURSION_OF_THE_BODY_VISCERAL_MASS_DURING_VERTICAL_JUMPS_IS_AFFECTED_BY_SPECIFIC_RESPIRATORY_MANOEUVRES_DC_AEM.pdf: NOTICE: this is the author’s version of a work that was accepted for publication in Human Movement Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Human Movement Science, 2013, DOI 10.1016/j.humov.2013.10.008
    RefereedYes
    StatusPublished
    ID Code37941

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