Comparison of plantar balance forces in adolescent’s female with knee abnormalities during walking on a slope
Poster Presentation
Paper ID : 1449-SSRC
Authors
1Department of Sport Biomechanics, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
2Department of sport management and biomechanics
Abstract
Background and purpose: Walking on a slope is one of the challenges of the movement balance system in daily activities, which is also used in exercises for various purposes, including rehabilitation. The aim of this study was to compare the balance forces of the soles of adolescent girls with knee deformities while walking on a slope.
Materials and methods: The research was quasi-experimental, causal-comparative and applied research model. There were 45 adolescent females with genu valgum (n=15) with genu varum (n= 15) and healthy knees (n=15) in the age range of 14 to 17 years who were selected after an invitation and diagnosis by a specialist. The forces of balance were examined on 0, ±7% slopes in the stance phase of gait. Two-way analysis of variance with repeated measures was used for statistical analysis. The significance level was equal to 0.05.
Result: According to the result of the variance between the healthy group, genu varum, and genu valgum at ±7% and 0% slope, the changes in the center of pressure between the groups in the 7% slope in the anterior-posterior direction and the -7% slope in the anterior-posterior direction is statistically significant (p≤0.05). However, there was no significant difference in the distribution of foot balance forces in any group.
Conclusion: The results showed that increasing the positive slope reduces the pressure on the soles of the feet and reduces the pronation of the subtalar joint. As a result, it reduces the pressure on the internal compartment of the knee in the genu varum group and also increases the negative slope, reduces the pressure on the soles of the subjects' feet and reduces the supination of the joint. As a result, the subtalar joint reduces the pressure on the external compartment of the knee in the genu valgum group.
Materials and methods: The research was quasi-experimental, causal-comparative and applied research model. There were 45 adolescent females with genu valgum (n=15) with genu varum (n= 15) and healthy knees (n=15) in the age range of 14 to 17 years who were selected after an invitation and diagnosis by a specialist. The forces of balance were examined on 0, ±7% slopes in the stance phase of gait. Two-way analysis of variance with repeated measures was used for statistical analysis. The significance level was equal to 0.05.
Result: According to the result of the variance between the healthy group, genu varum, and genu valgum at ±7% and 0% slope, the changes in the center of pressure between the groups in the 7% slope in the anterior-posterior direction and the -7% slope in the anterior-posterior direction is statistically significant (p≤0.05). However, there was no significant difference in the distribution of foot balance forces in any group.
Conclusion: The results showed that increasing the positive slope reduces the pressure on the soles of the feet and reduces the pronation of the subtalar joint. As a result, it reduces the pressure on the internal compartment of the knee in the genu varum group and also increases the negative slope, reduces the pressure on the soles of the subjects' feet and reduces the supination of the joint. As a result, the subtalar joint reduces the pressure on the external compartment of the knee in the genu valgum group.
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