The Role of Conscious and Unconscious Proprioceptive Sensation in Unstable Postural Balance: A Cross-Sectional Study
1Department of Anatomy, Amasya University Faculty of Medicine, Amasya, Türkiye
2Department of Anatomy, Erciyes University Faculty of Medicine, Kayseri, Türkiye
3Department of Physiotherapy and Rehabilitation, Nuh Naci Yazgan University, Faculty of Health Sciences, Kayseri, Türkiye
4Department of Orthopedics and Traumatology, Kayseri City Training and Research Hospital, Kayseri, Türkiye
5Ahi Evran University, School of Physicaltherapy and Rehabilitation, Kırşehir, Türkiye
6Department of Radiology, Kayseri City Training and Research Hospital, Kayseri, Türkiye
7Department of Anatomy, Erciyes University Faculty of Medicine, Kayseri, Türkiye
J Clin Pract Res 2024; 46(3): 242-250 DOI: 10.14744/cpr.2024.93419
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Objective: Proprioception is the capacity to perceive the position of any body part, either consciously or unconsciously. This sense, in conjunction with the visual and vestibular senses, helps maintain postural balance. This study explores the relationship between postural balance analysis outcomes and proprioceptive sense tractography data.
Materials and Methods: Sixty-two healthy individuals were categorized into two groups based on postural balance analysis: the unstable posture group and the stable posture group. Postural sway test measurements, such as sway area, track length, velocity, Romberg quotient, lateral sway, and anteroposterior sway, were recorded for both groups on fixed and moving surfaces over 20 seconds. Using the DSI Studio program, tractography of the proprioceptive sensory pathways was conducted on participants using brain diffusion tensor images (DTI). IBM Statistical Package for the Social Sciences (SPSS) 23.0 software was employed for statistical analysis, with a p-value <0.05 considered statistically significant.
Results: Tractography of the unstable posture group revealed increased mean diffusivity (MD) and radial diffusivity (RD) in the brain white matter, superior cerebellar peduncle, and middle cerebellar peduncle, while axial diffusivity (AD) values decreased (p<0.05). There was a notable correlation between the sway area in the unstable and eyes-open positions and the fiber count and fiber percentage in the right inferior cerebellar peduncle.
Conclusion: The data suggest impairments in the pathways responsible for carrying unconscious proprioceptive sensations in individuals with unstable posture.