caa a22 4500 465783910 CHVBK 20180323112003.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02441770 doi (NATIONALLICENCE)springer-10.1007/BF02441770 Role of the calcaneal inclination in the energy storage capacity of the human foot—a biomechanical model [Elektronische Daten] [A. Simkin, I. Leichter] The energy storage capacity of the human foot as a passive structure depends on both its geometry and elastic properties. The present study examines theoretically the relationship between the energy stored in the longitudinal arch and the inclination of the calcaneus, when a vertical load is applied. A simple two-dimensional model was used, consisting of two inclined rigid elements, hinged at the apex of the arch and connected by a horizontal tension spring at the bottom of the arch. The spring serves as the energy-storing element of the model, representing the foot plantar ligaments. The behaviour of the model was examined using both a linear and an exponential spring. It demonstrated that the stored energy depends strongly on the calcaneal inclination. For a given vertical load, the energy storage capacity is low at both large and small inclinations and rises markedly at an intermediate value. Assuming that the incidence of stress fractures during locomotion is affected by insufficient energy attenuation of the foot, this model provides an explanation for the higher prevalence of tibial and femoral stress fractures in subjects with high or low arches. IFMBE, 1990 Calcaneal inclination nationallicence Energy storage nationallicence Foot nationallicence Longitudinal arch nationallicence Model nationallicence Stress fractures nationallicence Simkin A. Department of Orthopaedic Surgery, Hadassah University Hospital, PO Box 12000, 91120, Jerusalem, Israel aut Leichter I. Jerusalem College of Technology, PO Box 16031, Jerusalem, Israel aut Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/2(1990-03-01), 149-152 0140-0118 28:2<149 1990 28 11517 https://doi.org/10.1007/BF02441770 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02441770 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Simkin A. Department of Orthopaedic Surgery, Hadassah University Hospital, PO Box 12000, 91120, Jerusalem, Israel aut NATIONALLICENCE 700 1- Leichter I. Jerusalem College of Technology, PO Box 16031, Jerusalem, Israel aut NATIONALLICENCE 773 0- Medical and Biological Engineering and Computing Kluwer Academic Publishers 28/2(1990-03-01), 149-152 0140-0118 28:2<149 1990 28 11517 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer