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What Are Kinematic and Kinetic Differences between Short and Parallel Turn in Alpine Skiing?

Author

Listed:
  • Ivan Bon

    (Laboratory for Sports Games, Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

  • Mateja Očić

    (Laboratory for Sports Games, Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

  • Vjekoslav Cigrovski

    (Laboratory for Sports Games, Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

  • Tomislav Rupčić

    (Laboratory for Sports Games, Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

  • Damir Knjaz

    (Laboratory for Sports Games, Faculty of Kinesiology, University of Zagreb, 10000 Zagreb, Croatia)

Abstract

There are numerous programs worldwide adapted for alpine ski beginners and they all share the same primary goal—inclusion of skiing beginners in alpine ski schools. The final elements of ski school taught in the parallel skiing technique are parallel turn and short turn. Synchronized analysis of kinetic and kinematic parameters of the parallel turn (PT) and short turn (ST) was conducted to determine the main biomechanical differences from a standpoint of foot pressure and lower limb angles. Both elements were performed by nine male ski instructors (age 33.4 ± 8.62, height 179.52 ± 5.98 cm, weight 78.6 ± 8.88 kg). Kinetic and kinematic analysis was conducted on 180 turns, 90 for each element. Differences in kinetic and kinematic parameters between parallel and short turns were tested by a paired t -test. The main findings of our study are determined differences in the ratio of pressure distribution on the inside and the outside foot and differences in kinematic parameters of the outside leg between elements. The mentioned analysis can provide an objective insight into the complexity of each element and provide guidelines for teaching process of those elements. This study determined the reasons for higher complexity of ST compared to PT based on the objective evaluation of biomechanical factors.

Suggested Citation

  • Ivan Bon & Mateja Očić & Vjekoslav Cigrovski & Tomislav Rupčić & Damir Knjaz, 2021. "What Are Kinematic and Kinetic Differences between Short and Parallel Turn in Alpine Skiing?," IJERPH, MDPI, vol. 18(6), pages 1-11, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:6:p:3029-:d:517542
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    References listed on IDEAS

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    1. Elizabeth S. Chumanov & C. David Remy & Darryl G. Thelen, 2010. "Computational techniques for using insole pressure sensors to analyse three-dimensional joint kinetics," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 13(5), pages 505-514.
    2. Karel Fromel & Michal Kudlacek & Dorota Groffik & Zbynek Svozil & Adam Simunek & Wieslaw Garbaciak, 2017. "Promoting Healthy Lifestyle and Well-Being in Adolescents through Outdoor Physical Activity," IJERPH, MDPI, vol. 14(5), pages 1-15, May.
    3. Thomas Falda-Buscaiot & Frédérique Hintzy & Patrice Rougier & Patrick Lacouture & Nicolas Coulmy, 2017. "Influence of slope steepness, foot position and turn phase on plantar pressure distribution during giant slalom alpine ski racing," PLOS ONE, Public Library of Science, vol. 12(5), pages 1-17, May.
    Full references (including those not matched with items on IDEAS)

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