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The effect of foot somatosensory loss in postural control during Functional reach test in patients with diabetic polyneuropathy: A controlled study
Date
2024-06-01
Author
Kahveci, Abdulvahap
Cengiz, Berat Can
Alcan, Veysel
Gürses, Senih
ZİNNUROĞLU, MURAT
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Background: In patients with diabetic polyneuropathy (DPN), differences in postural control due to losing the lower limb somatosensory information were reported. However, it is still unclear by which mechanisms the dynamic postural instability is caused. Objectives: This study aimed to investigate postural control differences and neuromuscular adaptations resulting from foot somatosensory loss due to DPN. Methods: In this controlled cross-sectional study, fourteen DPN patients and fourteen healthy controls performed the Functional Reach Test (FRT) as a dynamic task. The postural control metrics were simultaneously measured using force plate, motion capture system, and surface electromyography (sEMG). The main metrics including reach length (FR), FR to height ratio (FR/H), displacement of CoM and CoP, moment arm (MA), and arch height ratio. Also, kinematic (range of motion of ankle, knee, and hip joints), and sEMG metrics (latencies and root mean square amplitudes of ankle and hallux muscles) were measured. To compare variables between groups, the independent sample T-test for (normally distributed) and the Mann-Whitney U test (non-normally distributed) were used. Results: The subjects' reach length (FR), FR to height ratio, absolute MA, and displacement of CoM were significantly shorter than controls, while displacement of CoP was not significant. Arch height ratio was found significantly lower in DPN patients. We observed that CoM was lagging CoP in patients (MA = + 0.89) while leading in controls (MA = -1.60). Although, the muscles of patients showed significantly earlier activation, root mean square sEMG amplitudes were found similar. Also, DPN patients showed significantly less hip flexion, knee extension, and ankle plantar flexion. Conclusions: This study presented that decreasing range of motion at lower limbs’ joints and deterioration in foot function caused poor performance at motor execution during FRT in DPN patients.
Subject Keywords
Diabetic polyneuropathy
,
Foot somatosensory
,
Functional reach test
,
Postural control
,
Surface electromyography
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85189988479&origin=inward
https://hdl.handle.net/11511/109310
Journal
Foot
DOI
https://doi.org/10.1016/j.foot.2024.102097
Collections
Department of Engineering Sciences, Article
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BibTeX
A. Kahveci, B. C. Cengiz, V. Alcan, S. Gürses, and M. ZİNNUROĞLU, “The effect of foot somatosensory loss in postural control during Functional reach test in patients with diabetic polyneuropathy: A controlled study,”
Foot
, vol. 59, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85189988479&origin=inward.