The Study of Vertical Ground Reaction during Walk of Czech Women
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| Year of publication | 2012 |
| Type | Appeared in Conference without Proceedings |
| MU Faculty or unit | |
| Citation | |
| Description | Walk is a basic skill of a human; its individual characteristics and individual variability are the representative parameters of the automatic stepping mechanisms of gait. Our research of dynamic walk analysis reveal that there are two types of walkers: some generate bigger vertical ground reaction force in the initial part of stance, in the course of Loading Response, others reach higher values in the second peak during Terminal Stance. The aim of this study is to find out whether it is possible to explain different plantar loading during absorption and propulsive stages of stance in the observed persons by means of basic body indicators or time characteristics of gait. Material and methods Subjects: 51 women with ordinary physical activities participated in the study; their age range was between 30 and 60 years of age. The women were divided into two groups according to whether they reached higher values of vertical ground reaction during absorption (group A) or propulsive (group B) stage of stance. Instrumentation: capacitive pressure insoles in the shoe (Pedar Mobile, Novel Munich, 99 sensors, 100 Hz). In group A, 8 women (16 %) were found with a higher value of F1 than F2, and 41 women (84 %) in group B with the opposite course of force plantar loading. At F1, Group A reached relative value of 121 % of BW during the first stage and 110 % of BW during the second one respectively. The other group reached 105 % in the initial stage, and 117 % of BW in the other stage. A significant difference was found for F1 parameter between groups A and B, which illustrates basic differences in plantar loading during stance in the observed groups of women. In the other stage (Terminal stance, Preswing), the amount of force was equal (the difference was not significant) because if both groups want to maintain their typical walking velocity, it is necessary to generate sufficient motive force as well as generate sufficient vertical ground reaction forces. |
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