Dynamics of Judoka´s foot arch

Jan Šenkýř, Zdenko Reguli, Jitka Čihounková
Faculty of Sports Studies, Masaryk University, Brno, Czech Republic

Background and Aim of the study. Many health problems are caused by a poor condition of foot arch. Foot arches of athletes are influenced by injuries. Barefooted walk is recommended as a prevention of foot arch problems. That is why we chose judoka as tested persons because their
performance and training is always barefooted.
Materials and Methods. We used drop test to assess the dynamics of judoka´s foot arch. Our control group consists of nonathletic population (25 judoka, 25 nonathletes). We measured the length of the sole, height of os navicular in a sitting and standing position.
Results. The dynamics of Judoka´s right foot (average result of drop test 6.64 mm) is bigger than their left foot´s (6.0 mm). Foot arch´s drop of nonathletes is less than half of judoka´s (2.62 mm of right foot, 3.54 left foot).
Conclusions. Practicing judo formulates the feet arches. There is a difference between right and left foot arch dynamics depending on the preference guard in judo.
Key words: tarsal bones ? martial art ? drop test ? dexterity ? barefooted activity

Published online: 17 September 2015
Copyright😕 2015 the Authors. Published by Archives of Budo
Contributors: Zdenko Reguli conceived the study design. Jan Šenkýř collected the data. Jitka Čihounková analysed the data. Jan Šenkýř, Jitka Čihounková prepared the manuscript. Zdenko Reguli secured the funding.
Funding: The paper is financially supported by Department of gymnastics and combatives
Conflict of interest: Authors have declared that no competing interest exists
Ethical approval: approved by the Local Ethical Committee
Provenance and peer review: Under responsibility of HMA Congress
Corresponding author: Jan Šenkýř, Faculty of Sports Studies, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic; e-mail: senkyr[at]fsps.muni.cz
Open Access License: This is an open access article distributed under the terms of the Creative Commons Attribution-Non-commercial 4.0 International (http://creativecommons.org/licenses/by-nc/4.0/), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non-commercial and is otherwise in compliance with the license