Olaya Mira Natali, Gómez Hernández Luz Marina, Viloria Barragán Carolina, Monsalve Montes Manuela, Soto Cardona Isabel Cristina
Grupo de Investigación e Innovación Biomédica GI2B, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Calle 73 No. 76A - 354, Vía al Volador (Bloque I, Segundo piso, oficina 7), Medellin, 050034, Colombia, 57 6044405100 ext 5166.
Escuela de Ingeniería, Arquitectura y Diseño, Universidad Tecnológica de Bolívar, Parque Industrial y Tecnológico Carlos Vélez Pombo Km 1 Vía Turbaco,, Cartagena, Colombia, +57 605 6931919.
JMIR Rehabil Assist Technol. 2025 Jul 29;12:e67022. doi: 10.2196/67022.
The quantification of gait parameters in amputees facilitates the assessment of their performance with prosthetic devices. These parameters often depend on measurements based on anatomical aspects that vary across different types of lower limb amputations.
This study aimed to investigate body weight distribution, and gait symmetry, quality, and propulsion, as well as pelvic kinematics in the amputee population.
The EcoWalk baropodometry platform was used to measure plantar pressure, and the G-Walk inertial sensor was used for accelerometry measurements in 29 unilateral lower limb amputees.
Values were estimated for each variable under analysis, and the findings were categorized by the level of amputation. All variables exhibited normal distribution within each group under analysis , except for the symmetry index in above-knee (AK) amputees (P=.03). Regarding the body weight distribution (P=.11), velocity (P≥.99), propulsion (P=.38), and quality index (P=.10) of the amputated limb; no significant differences were observed between the AK and below-knee (BK) amputees. The most significant deviation was noted in pelvic obliquity, which was greater in AK amputees compared to BK amputees.
The values reported for the variables under analysis may enable the establishment of more precise reference levels for the amputee population, thereby contributing to a more accurate diagnostic process and aiding prosthetic fitting.
对截肢者步态参数进行量化有助于评估他们使用假肢装置的表现。这些参数通常取决于基于解剖学方面的测量，而这些测量在不同类型的下肢截肢中会有所不同。
本研究旨在调查截肢人群的体重分布、步态对称性、质量和推进力，以及骨盆运动学。
使用EcoWalk足底压力测量平台测量足底压力，并使用G-Walk惯性传感器对29名单侧下肢截肢者进行加速度测量。
对分析中的每个变量进行了值估计，并根据截肢水平对结果进行了分类。在分析的每组中，所有变量均呈现正态分布，但膝上（AK）截肢者的对称指数除外（P = 0.03）。关于截肢肢体的体重分布（P = 0.11）、速度（P≥0.99）、推进力（P = 0.38）和质量指数（P = 0.10）；AK截肢者和膝下（BK）截肢者之间未观察到显著差异。观察到的最显著偏差是骨盆倾斜度，AK截肢者的骨盆倾斜度比BK截肢者更大。
所报告的分析变量值可能有助于为截肢人群建立更精确的参考水平，从而有助于更准确的诊断过程并辅助假肢适配。
