Moreira Juliana, Cunha Bruno, Félix José, Santos Rubim, Sousa Andreia S P
CIR, E2S, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal.
Research Center in Physical Activity, Health and Leisure, Faculty of Sports, University of Porto, 4200-450 Porto, Portugal.
J Funct Morphol Kinesiol. 2025 Apr 23;10(2):140. doi: 10.3390/jfmk10020140.
: Gait kinematic and kinetic changes have been identified in older adults, highlighting the need to explore the principal age-related components and how these are associated with functional disability. This study aims to perform a factor analysis, including gait kinematic and kinetic parameters in older adults to establish determinant gait domains. Additionally, this study aims to identify which domains differentiate those without and with functional disability. : Through a cross-sectional design, older adults aged 60 and over (n = 35 without and n = 25 with functional disability) were analyzed during overground gait. A principal component analysis (PCA) was used to determine principal components from gait parameters previously demonstrated to express age-related effects (spatiotemporal parameters, sagittal ankle moment and power, ground reaction forces peak, and tridimensional lower limb joints range of motion and positions at heel strike and toe-off). : , , , , , , , control, , and domains explained 83.90% of the total gait variance in older adults. and distinguished individuals with disabilities. : PCA identified ten gait domains in older adults. and distinguished disabilities, revealing cautious walking patterns and weaker hip abductor strength.
已在老年人中识别出步态运动学和动力学变化，这凸显了探索主要的年龄相关因素以及这些因素如何与功能残疾相关联的必要性。本研究旨在进行因素分析，纳入老年人的步态运动学和动力学参数，以确定决定性的步态领域。此外，本研究旨在确定哪些领域能够区分无功能残疾和有功能残疾的老年人。：通过横断面设计，对60岁及以上的老年人（35名无功能残疾者和25名有功能残疾者）进行地面步态分析。主成分分析（PCA）用于从先前已证明能表达年龄相关效应的步态参数中确定主成分（时空参数、矢状面踝关节力矩和功率、地面反作用力峰值以及三维下肢关节在足跟触地和足趾离地时的运动范围和位置）。： 、 、 、 、 、 、 、 控制、 和 领域解释了老年人总步态方差的83.90%。 和 区分了残疾个体。：PCA确定了老年人的十个步态领域。 和 区分了残疾情况，揭示了谨慎的行走模式和较弱的髋外展肌力量。
