The Effect of Vision on Ground Reaction Force in Active Children's Gate
Paper ID : 1123-SPORTCONGRESS (R1)
Authors
Seyed Morteza Mansouri Mehrian *1, Zahra Koreili2
1Department of Sport Biomechanics, Central Tehran Branch, Islamic Azad University,Tehran, Iran.
2Department of Sport Biomechanics, Tehran, Iran
Abstract
Objective: Vision is one of the most important sensory systems in regulating balance and controlling body movements. The aim of this study was to investigate the effect of vision on the components of ground reaction force in gait in active children.
Materials and Methods: In this quasi-experimental study, 30 active children aged 7 to 11 years in Tehran were tested using a convenience sampling method under four visual conditions (eyes open and eyes closed). Ground reaction force data were recorded in three axes (anterior-posterior, lateral, vertical) using a force plate. The vertical, anterior-posterior, and medial-lateral components of ground reaction force were analyzed in the stance phase of gait. Data analysis was performed using repeated measures ANOVA with a significance level of (p≤0.05).
Results: The results of the study showed that visual deprivation had a significant effect on the components of ground reaction force. In the eyes-closed condition, an increase in the medial-lateral axis oscillations (P=0.000) and a decrease in the vertical force in the heel strike phase were observed (P=0.000). Also, a significant effect was recorded in the force pattern in the anterior-posterior axis (P=0.01), indicating a decrease in mechanical stability in the absence of visual information.
Conclusion: Vision plays a vital role in postural control and distribution of mechanical forces during walking in children. Its elimination can cause changes in ground reaction force patterns. Also, analysis of ground reaction force components can be used as a screening tool to identify hidden balance disorders. These findings can be used in designing rehabilitation interventions and assessing children's motor function.
Keywords
Vision, Ground Reaction Force, Active Children, Gate
Status: Abstract Accepted (Poster Presentation)