Influence of age, gender, and obesity on the mechanical properties of the heel pad under walking impact conditions

被引：15

作者：

Alcántara, E ^{[1
]}

Forner, A ^{[1
]}

Ferrús, E ^{[1
]}

García, AC ^{[1
]}

Ramiro, J ^{[1
]}

机构：

[1] Inst Biomech Valencia, E-46980 Valencia, Spain

来源：

JOURNAL OF APPLIED BIOMECHANICS | 2002年 / 18卷 / 04期

关键词：

shock absorption; impact mechanics; aging; ballistic pendulum;

D O I：

10.1123/jab.18.4.345

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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.

引用

页码：345 / 356

页数：12

共 15 条

[1] THE MECHANICAL-PROPERTIES OF THE HUMAN HEEL PAD - A PARADOX RESOLVED [J].