Table of Contents Author Guidelines Submit a Manuscript
Applied Bionics and Biomechanics
Volume 2017, Article ID 7136238, 9 pages
https://doi.org/10.1155/2017/7136238
Research Article

The Effect of Body Mass on the Shoe-Athlete Interaction

1Department of Mechanical Engineering, Aristotle University of Thessaloniki, 54 124 Thessaloniki, Greece
2Department of Mechanical Engineering, Technical University of Central Macedonia, Terma Magnisias, 62 124 Serres, Greece
3Department of Mechanical Engineering, Technical University of Western Macedonia, Kila, 50 100 Kozani, Greece
4School of Physical Education & Sport Science, Aristotle University of Thessaloniki, Ippokratous 22 Ag. Ioannis, 62 122 Serres, Greece

Correspondence should be addressed to A. Tsouknidas; rg.htua@ostxela

Received 21 November 2016; Revised 20 January 2017; Accepted 7 February 2017; Published 29 March 2017

Academic Editor: Stefano Zaffagnini

Copyright © 2017 A. Tsouknidas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Long-distance running is known to induce joint overloading and elevate cytokine levels, which are the hallmarks for a variety of running-related injuries. To address this, footwear systems incorporate cushioning midsoles to mitigate injurious mechanical loading. The aim of this study was to evaluate the effect of athlete body mass on the cushioning capacity of technical footwear. An artificial heel was prototyped to fit the impact pattern of a heel-strike runner and used to measure shock attenuation by an automated drop test. Impact mass and velocity were modulated to simulate runners of various body mass and speeds. The investigation provided refined insight on running-induced impact transmission to the human body. The examined midsole system was optimized around anthropometric data corresponding to an average (normal) body mass. The results suggest that although modern footwear is capable of attenuating the shock waves occurring during foot strike, improper shoe selection could expose an athlete to high levels of peak stress that could provoke an abnormal cartilage response. The selection of a weight-specific cushioning system could provide optimum protection and could thus prolong the duration of physical exercise beneficial to maintaining a simulated immune system.