Influence of age, gender, and obesity on the mechanical properties of the heel pad under walking impact conditions
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| Deutscher übersetzter Titel: | Einfluss des Alters, des Geschlechts und der Fettleibigkeit auf die mechanischen Eigenschaften des Fersenpolsters während des Auftretens beim Gehen |
|---|---|
| Autor: | Alcántara, Enrique ; Forner, Arturo; Ferrus, Elena; Garcia, Ana-Cruz; Ramiro, Jose |
| Erschienen in: | Journal of applied biomechanics |
| Veröffentlicht: | 18 (2002), 4, S. 345-356, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (Datenträger) |
| Sprache: | Englisch |
| ISSN: | 1065-8483, 1543-2688 |
| DOI: | 10.1123/jab.18.4.345 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU200512002724 |
| Quelle: | BISp |
Abstract
Impact mechanics of the human heel pad were studied using a ballistic pendulum. Young and elderly men and women took part in the experiment. Twelve parameters were used to describe heel pad properties. Analysis of variance was conducted to assess the influence of age, gender, and obesity. Heel pad properties were correlated with impact force and time to peak force in order to study impact mechanics. Maximal stiffness, peak displacement, and energy absorption were established so as to sufficiently describe impact properties of the heel pad. Age, gender, and obesity introduced significant differences in heel pad properties. Peak displacement and time to peak force increased in the elderly. Women presented a shorter time to peak force together with lower peak displacement, energy absorption, and lower maximal stiffness than men. Obese elderly showed lower impact forces, longer time to peak, and greater peak displacement than non-obese and younger participants. In addition, energy absorption was greater and maximal stiffness was lower for obese than for non-obese participants. Verf.-Referat