###### Abstract  
Cervical proprioception and postural stability play crucial roles in maintaining optimal head and neck positioning, yet their relationship and implications in cervical spondylosis (CS) remain underexplored. This study aims to investigate cervical proprioceptive reposition errors, limits of stability, and their association in individuals with CS while considering the mediating effects of pain and kinesiophobia. The primary objectives are to compare cervical proprioceptive reposition errors and limits of stability variables between individuals with CS and age-matched healthy controls, explore their associations within the CS group, and determine the mediating roles of pain and kinesiophobia. A cross-sectional study recruited 60 individuals with CS and 60 healthy controls. Cervical joint reposition errors (JREs) were assessed using a cervical range-of-motion device, while limits of stability were evaluated using a computerized dynamic posturography system. Pain, kinesiophobia, and demographic data were collected. Parametric tests, correlation analyses, and multiple regression were employed for data analysis. Individuals with CS exhibited significantly higher cervical JREs in flexion, extension, and rotation compared with healthy controls (\(p<0.001\)). Within the CS group, correlations revealed associations between JREs and limits-of-stability variables (\(p<0.05\)). Mediation analysis demonstrated significant direct and indirect effects of pain and kinesiophobia on the relationship between JREs and limits-of-stability variables in the CS group (\(p<0.005\)). CS is associated with impaired cervical proprioception, increased reposition errors, and compromised postural stability. This study highlights the interplay between proprioception, stability, pain, and psychological factors, emphasizing the need for comprehensive interventions in individuals with CS to enhance functional outcomes and quality of life. 28 November 2023202020 December 202320 December 202320  
tasks that require synchronized head and neck movements [6; 7]. The significance of cervical proprioception becomes particularly apparent in scenarios where its functionality is compromised [8; 9]. Cervical spondylosis (CS), a degenerative condition affecting the cervical spine, can adversely impact the proprioceptive mechanisms that regulate the neck's position and movement [10]. This condition, characterized by the wear and tear of spinal discs, facet joints, and other structural components, can lead to proprioceptive deficits and subsequent challenges in maintaining postural stability and coordinating neck movements [11]. Prior research has elucidated the fundamental significance of cervical proprioception in maintaining postural stability and coordinating head movements [12]. Studies have highlighted the critical role of proprioceptive signals from cervical muscles and ligaments in modulating the activity of neck muscles to maintain an upright posture and stabilize the head during various tasks [10; 13]. These studies underscore the essential contribution of cervical proprioception to the dynamic control of head position [13]. Moreover, cervical proprioceptive deficits are associated with various musculoskeletal conditions. Research by [PERSON] et al. [14] demonstrated that individuals with neck pain exhibit impaired cervical proprioception, characterized by increased joint position errors during head repositioning tasks. Similarly, studies by [PERSON] et al. [15] and [PERSON] et al. [16] reported altered proprioceptive function in individuals with whiplash-associated disorders, emphasizing the role of cervical proprioception in neck pain conditions. These findings collectively indicate that disturbances in cervical proprioception can have profound implications for musculoskeletal health and postural control. Pain, often a prominent feature of CS, could potentially influence proprioceptive accuracy and stability [17; 18].