Sarvestani Mohadeseh, Orakifar Neda, Mofateh Razieh, Seyedtabib Maryam, Karimi Mehrnoosh, Mehravar Mohammad
Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Department of Physiotherapy, School of Rehabilitation Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
J Appl Biomech. 2025 Jan 3;41(2):107-116. doi: 10.1123/jab.2024-0207. Print 2025 Apr 1.
Knee osteoarthritis (KOA) can have more pronounced effects on joint position sense (JPS) accuracy and gait characteristics. The aim of this study is to investigate the association between lower limb JPS and different aspects of gait pattern including gait asymmetry and variability and spatiotemporal coordination in individuals with bilateral KOA. In this cross-sectional study, lower limb JPS of 43 individuals with bilateral KOA (mild and moderate) were measured. Participants' gait patterns during treadmill walking with self-selected comfortable speed were assessed. The correlations between JPS errors and gait parameters of limb with moderate KOA were analyzed. Positive relationships were found between stance time symmetry index and JPS errors of hip abduction (r = .46, P = .003), ankle plantar flexion (r = .33, P = .03), and ankle dorsiflexion (r = .33, P = .03). Positive relationship was found between single limb support time symmetry index and hip abduction JPS error (r = .41, P = .008). Significant negative associations were found between coefficient of variation of step length and JPS errors of knee extension (r = .47, P = .002) and ankle plantar flexion (r = .33, P = .003). Results did not show any significant relationship between lower limb JPS errors and walk ratio. It is likely that lower limb JPS deficits are partially responsible for some changes in gait patterns observed in individuals with bilateral KOA.
膝关节骨关节炎（KOA）对关节位置觉（JPS）准确性和步态特征的影响可能更为显著。本研究旨在探讨双侧KOA患者下肢JPS与步态模式不同方面之间的关联，包括步态不对称性、变异性以及时空协调性。在这项横断面研究中，对43例双侧KOA（轻度和中度）患者的下肢JPS进行了测量。评估了参与者在以自选舒适速度在跑步机上行走时的步态模式。分析了中度KOA肢体的JPS误差与步态参数之间的相关性。结果发现，站立时间对称指数与髋关节外展JPS误差（r = 0.46，P = 0.003）、踝关节跖屈（r = 0.33，P = 0.03）和踝关节背屈（r = 0.33，P = 0.03）的JPS误差之间呈正相关。单腿支撑时间对称指数与髋关节外展JPS误差之间呈正相关（r = 0.41，P = 0.008）。步长变异系数与膝关节伸展JPS误差（r = 0.47，P = 0.002）和踝关节跖屈JPS误差（r = 0.33，P = 0.003）之间存在显著负相关。结果未显示下肢JPS误差与步幅比之间存在任何显著关系。双侧KOA患者观察到的步态模式的某些变化可能部分归因于下肢JPS缺陷。
