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Limit cycle dynamics of the gymnastics longswing

Human Movement Science, February 2018, Vol.57, pp.217-226 [Peer Reviewed Journal]

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  • Title:
    Limit cycle dynamics of the gymnastics longswing
  • Author: Vicinanza, Domenico ; Newell, Karl M ; Irwin, Gareth ; Smith, Lee ; Williams, Genevieve K.R
  • Found In: Human Movement Science, February 2018, Vol.57, pp.217-226 [Peer Reviewed Journal]
  • Subjects: Dynamical Systems ; Variability ; Motor Control ; Collective Variable ; Biomechanics ; Gymnastics ; Medicine ; Anatomy & Physiology ; Psychology ; Recreation & Sports
  • Language: English
  • Description: The purpose of the study was to examine the macroscopic dynamics of the longswing through a limit cycle analysis of the motion of the center of mass (CM) as a function of skill level. One elite international, five gymnasts able to perform release and regrasp skills, five gymnasts unable to perform release and regrasp skills, and five novice gymnasts each performed four consecutive longswings on a high bar. Kinematic data were collected to facilitate the calculation of the center of mass position of the performer during swinging. Poincare plots were used to explore the limit cycle dynamics of the center of mass movement. The attractor dynamic was very close to a one-dimensional limit cycle for the elite (D = 1.18) but higher for the release and regrasp group (D = 1.35 ± 0.06) and non-release and regrasp group (D = 1.37 ± 0.07). The novice dynamic was characterized by a two-dimensional limit cycle (D = 2.49 ± 0.28) that also had more variability and lower determinism. In the frequency...
  • Identifier: ISSN: 0167-9457 ; E-ISSN: 1872-7646 ; DOI: 10.1016/j.humov.2017.12.014

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