Publications by authors named "I Biro"
This study explored the relationship between the foot arch stiffness and windlass mechanism, focusing on the contribution of the posterior transverse arch. Understanding the changing characteristics of foot stiffness is critical for providing a scientific basis for treating foot-related diseases. Based on a healthy male's computed tomography, kinematic, and dynamics data, a foot musculoskeletal finite element model with a dorsiflexion angle of 30°of metatarsophalangeal joint was established.
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- A causal relationship exists between foot structure differences and lower limb biomechanics, contributing to musculoskeletal disorders.
- The study investigated how medial longitudinal arch flexibility influences joint coordination and ground reaction forces during walking and running in physically active males.
- Results showed that varying arch flexibility affects joint coordination and ground reaction forces, with stiffer arches leading to greater variability in certain phases of walking, and flexible arches producing more forward and backward ground reaction forces.
Comparison of ground reaction forces as running speed increases between male and female runners.
Front Bioeng Biotechnol
July 2024
Article Synopsis
- The study investigates how gender and speed influence the biomechanics of human running, specifically focusing on ground reaction forces (GRFs) and gait differences between male and female runners.
- Data was collected from 48 runners (30 males and 18 females) as they ran at speeds ranging from 10 to 16 km/h, highlighting that as speed increases, both propulsive and vertical GRFs rise significantly.
- Results indicate that female runners exert greater propulsive and vertical forces than their male counterparts, especially during the late stance phase, implying that females may expend more effort to maintain the same running speed as males.
Flatfoot is characterized by the collapse of the medial longitudinal arch, eversion of the rearfoot and abduction of the loaded forefoot. Orthopedic insoles are the frequently recommended treatment to support the arch of the foot, adjust the structure of the foot, reduce pain, improve stability and new techniques have been applied to the design of orthopedic insoles in recent years. However, the effectiveness of orthopedic insoles in different motions is still debated from the perspective of biomechanics.
View Article and Find Full Text PDFUsing a curved carbon-fiber plate (CFP) in running shoes may offer notable performance benefit over flat plates, yet there is a lack of research exploring the influence of CFP geometry on internal foot loading during running. The objective of this study was to investigate the effects of CFP mechanical characteristics on forefoot biomechanics in terms of plantar pressure, bone stress distribution, and contact force transmission during a simulated impact peak moment in forefoot strike running. We employed a finite element model of the foot-shoe system, wherein various CFP configurations, including three stiffnesses (stiff, stiffer, and stiffest) and two shapes (flat plate (FCFP) and curved plate (CCFP)), were integrated into the shoe sole.
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