Instantaneous Effect of Insole on the Balance of Adolescents With Flat Foot and Pes Cavus

Ali Fattahi,Zahra Koreili,Mitra Ameli

doi:10.32598/biomechanics.6.1.6

Ali Fattahi, Zahra Koreili + Show 1 more

Open Access

https://doi.org/10.32598/biomechanics.6.1.6

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Abstract

Objective: The purpose of this study was to examine the instantaneous effect of insole on the balance of adolescents with flat foot and Pes Cavus. Methods: In this quasi-experimental study, 34 adolescents with flat foot and Pes Cavus (17 girls and 17 boys) in the age range of 11 to 14 years in Tehran were randomly selected and their balance performance in static and dynamic positions was examined before and after instantaneous using of insole. Data were analyzed using paired t-test and independent t-test. Results: Paired t-test results showed that the instantaneous effect of insole on dynamic balance is significant (P=0.00), but it had no significant effect on static balance (P=0.07). The results of independent t-test showed no significant difference between the two groups in terms of dynamic balance (P=0.99) and static balance (P=0.52) in Pre-test phase. There was no significant difference between the two groups in dynamic balance (P=0.25) and static balance (P=0.72) in Post-test phase, either. Conclusion: Using medical insole can improve the dynamic balance in adolescents with Pes Cavus and flat foot, but has no effect on their static balance.

Highlights

M aintaining balance is one of the most basic neuromuscular functions in the most of simple and complex activities
The results of paired t-test for instantaneous effect of insole on the two study groups showed that the use of insoles improved the dynamic balance of subjects with Pes Cavus (P=0.00), but had no significant effect on their static balance (P=0.42)
Using the insoles improved the dynamic balance of subjects with flat foot (P=0.00), but had no significant effect on their static balance (P=0.10) (Table 1)

Summary

Introduction

M aintaining balance is one of the most basic neuromuscular functions in the most of simple and complex activities. Plantar arches play an important role in regulating and distributing plantar pressure. The presence of longitudinal and transverse plantar arches, support of bone structures and soft tissue stabilizes the subtalar and midtarsal joints. Having stability in these joints during dynamic activities such as walking provides the necessary force to move forward and transfer that force to the foot. Prefabricated insoles increase balance and reduce extra lateral movements by creating more contact surface and more appropriate pressure distribution over the sole of the foot. The presence of musculoskeletal abnormalities such as flat feet and Pes Cavus and structural features of the foot affect the balance of people. Decreased balance leads to decreased performance and provides the basis for injury, especially in the ankle

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Conclusion