Izvorni znanstveni članak
https://doi.org/10.7906/indecs.23.4.6
Biomechanical Characterization of Foot Asymmetry in Stair Ascent and Descent: A Case Study in a Healthy Adult using Plantar Pressure Metrics
Marko Čeredar
orcid.org/0009-0004-8924-9722
; University of Zagreb – Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
*
Aleksandar Sušić
; University of Zagreb – Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Bruno Dogančić
; University of Zagreb – Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Karla Martinić-Posavec
; University of Zagreb – Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
* Dopisni autor.
Sažetak
Stair ascent and descent creates unique biomechanical demands which affect gait symmetry even in healthy people. The occurrences of differences in stair ascent and descent can lead to an increased risk of joint injuries. This case study explored the differences in vertical forces derived from plantar pressure and induced loads under each foot during stair ascent and descent using a pressure-sensitive platform. Within the research objectives, several parameters were observed such as peak force, time to peak force, force impulse, root mean square error, correlation coefficients, and the foot asymmetry index. Those parameters indicated that gait became noticeably more asymmetric during stair descent, particularly at the heel. This appeared linked to limited ankle mobility, which delayed force transfer and increased local peak forces, suggesting the body was compensating to maintain balance or momentum. These compensations could lead to excess stress higher up the kinetic chain, possibly raising the risk of joint wear in the knees or hips over time. Our findings emphasize how even subtle mobility issues can affect whole-body mechanics and highlight the value of ankle-focused rehab and personalized prosthetic design. While the single, subject design limits broader conclusions, this work offers a useful starting point for future research into joint loading patterns, neuromyofascial coordination, and strategies to support more balanced movement.
Ključne riječi
plantar pressure; stair gait; asymmetry; ankle mobility; biomechanics
Hrčak ID:
334802
URI
Datum izdavanja:
30.8.2025.
Posjeta: 631 *