TOTAL KÖR, AZ GÖREN VE NORMAL GÖRME YETİSİ OLAN ÇOCUKLARDA STATİK POSTURAL KONTROL VE DİNAMİK TEPE KUVVET DEĞERLERİNİN KARŞILAŞTIRILMASI VE PARAMETRELER ARASI İLİŞKİLERİN İNCELENMESİ

Yıl 2025, Cilt: 10 Sayı: 3, 60 - 70, 31.12.2025

Neslihan Fırat , Mustafa Sarı , Nilgün Bek

https://doi.org/10.52881/gsbdergi.1782232

Öz

Giriş: Görme yetisi, postural kontrolün sürdürülebilmesinde önemli bir rol oynar
Amaç: Çalışmamızın amacı farklı seviyelerde doğuştan görme kaybı olan ve normal görme yetisine sahip çocuklarda, statik CoP (Center of Pressure) salınımı ile dinamik plantar temas alanlarındaki tepe kuvvet torklarının karşılaştırılması ve bu parametreler arasındaki ilişkilerin incelenmesidir.
Yöntem: Çalışmaya 7-14 yaş aralığında olan 68 çocuk dahil edildi ve normal gören, az gören ve total kör olarak 3 gruba ayrıldı. Statik CoP değerlerinin ve dinamik tepe kuvvet torklarının elde edilmesi amacıyla taşınabilir AS Ayak Tarama (Analiz Sistem®, İstanbul, Türkiye) sistemi kullanıldı.
Bulgular: Çocukların yaş, vücut ağırlığı, boy uzunluğu, beden kütle indeksi, cinsiyet ve dominant ekstremite dağılımlarının benzer olduğu görüldü (p>0,05). Statik ayakta duruşta gruplar arası karşılaştırmalarda CoP toplam yol uzunluğu (path length) değeri hariç (p=0,002) diğer sonuçlar açısından grupların benzer olduğu görüldü (p>0,05). Dinamik olarak ölçülen tepe kuvvet tork değerlerinin dominant ve non-dominant alt ekstremitelerde üç grup arasında benzer olduğu bulundu (p>0,05). Normal görenlerde ise CoP path length değerlerinin dominant ve non-dominat ayağın 1. metatarsal alanı, orta ayak ve topuk medialinden elde edilen tepe kuvvet torkları ile negatif yönde ve orta kuvvette ilişkisi olduğu bulundu (p<0,05).
Sonuç: Görme engelli çocuklar, statik postural kontrol sırasında normal gören akranlarına kıyasla daha fazla salınım göstermelerine rağmen, dinamik plantar kuvvet dağılımında anlamlı bir fark bulunmamıştır. Statik ölçüm sonuçları ile dinamik tepe kuvvet tork değerleri arasındaki zayıf–orta ilişki, postural kontrolün sağlanması için geliştirilen bir strateji gibi görünmektedir. Bu durum, görsel girdi eksikliğinin denge mekanizmaları üzerinde etkili olduğunu göstermektedir.

Anahtar Kelimeler

Görme engeli , pedobarografik analiz , postural kontrol

Etik Beyan

Bu çalışmanın verileri sorumlu araştırmacının doktora tezi için planladığı kesitsel çalışmanın ön test verilerinden elde edilmiştir. Çalışma, 29 Ağustos 2024 tarihinde Lokman Hekim Üniversitesi Bilimsel Araştırma Etik Kurulu tarafından 2024/09-1 karar numarası ile onaylanmış ve Helsinki Bildirgesi'ne uygun olarak yürütülmüştür.

Destekleyen Kurum

Yazarlar çalışmanın yürütülmesi sürecinde herhangi bir finansal destek almadıklarını beyan ederler.

Teşekkür

Yok

COMPARISON OF STATIC POSTURAL CONTROL AND DYNAMIC PEAK FORCE VALUES IN TOTALLY BLIND, LOW VISION AND NORMAL VISION CHILDREN AND EXAMINATION OF RELATIONSHIPS BETWEEN PARAMETERS

Öz

Background: Vision plays an important role in maintaining postural control.
Aim: The aim of our study is to compare static CoP (Center of Pressure) sway with peak force torques in dynamic plantar contact areas in children with different levels of congenital vision impairment and children with normal vision, and to examine the relationships between these parameters.
Method: Sixty-eight children aged 7–14 years were included in the study and divided into three groups: normal vision, low vision, and total blindness. A portable AS Foot Scanning System (Analiz Sistem®, Istanbul, Turkey) was used to obtain static CoP values and dynamic peak force torques.
Results: The age, body weight, height, body mass index (BMI), gender, and dominant extremity distribution of the children included in the study were found to be similar (p>0.05). Examination of the CoP data during static standing revealed that, except for the CoP Path Length value (p=0.002), the intergroup comparisons showed similar results (p>0.05). The dynamically measured peak force torque values of the dominant and non-dominant lower extremities were also found to be similar among the three groups (p>0.05).
Conclusion: Although visually impaired children show more postural sway than their sighted peers during static postural control, no significant difference was found in dynamic plantar force distribution. The weak to moderate relationship between static results and dynamic peak force torque values appears to be a strategy developed to maintain postural control. This demonstrates that the lack of visual input affects balance mechanisms.
Keywords: Visual impairment, pedobarographic analysis, postural control

Anahtar Kelimeler

Visual impairment , pedobarographic analysis , postural control

Etik Beyan

The data for this study were derived from the pre-test phase of a cross-sectional study planned by the principal investigator as part of their doctoral dissertation. Ethical approval was obtained from the Lokman Hekim University Scientific Research Ethics Committee on August 29, 2024 (Decision No: 2024/09-1). The study was conducted in accordance with the principles of the Declaration of Helsinki.

Destekleyen Kurum

The authors declare that they did not receive any financial support during the conduct of the study.

Teşekkür

None

Kaynakça

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