Volume : VIII, Issue : VII, July - 2019

EFFECT OF FOOT ASYMMETRY ON POSTURAL STABILITY BEFORE AND AFTER FATIGUE.

Pragya Kumar

Abstract :

Background & Purpose – Numerous studies found that static and dynamic balance to be adversely affected by changes in peripheral input secondary to joint injury and changes in stability of the surface on which one is standing but far less attention has been focused on whether more subtle alterations in the surface, stability or peripheral input of the foot may also affect balance. Furthermore the detrimental effect of fatigue on static and dynamic postural control have been studied in chronic ankle instability patients but effect of different foot types and lower extremity fatigue on static and dynamic postural control has yet to be studied . Therefore the purpose of this study was to understand the potential influence of anatomical alignment (foot asymmetry) and fatigue on measures of postural stability (static and dynamic balance) before and after fatigue of lower extremity. Methodology – 30 female subjects of mean age 20.8±2.05 years were included as per inclusion and exclusion criteria. Further they were divided into three groups depending on the scores of Foot Posture Index (FPI–6) i.e., Group A – Pronated Foot (n=10; mean age = 21.2±1.87 years); Group B– Normal Foot (n=10; mean age = 21.1±2.60 years) and Group C– Supinated Foot (n=10; mean age = 20.1±1.59years). Static and Dynamic Postural Stability was assessed in standing position using Balance Error Scoring System (BESS) and Star Excursion Balance Test (SEBT) respectively before and after inducing fatigue. Lower limb fatigue was induced through lunging task and it was quantified through Borg’s 15– Point Scale (RPE score–15). Results – One – way Analysis of Variance has been done to pre–fatigue and post–fatigue mean values of Static Balance (double limb, single limb and tandem stance on firm and foam surfaces) and of Dynamic Balance for right and left foot in 8 different directions (anterior, anteromedial, medial, posteromedial, posterior, posterolateral, lateral and anterolateral) between Groups A, B &C. No significant difference (p>0.05) was there in static postural stability and reach distance in different foot types in 8 directions in three different foot types before and after fatigue. Conclusion – This study showed that there was no change in postural stability (static and dynamic) because of foot asymmetry before and after lower limb fatigue when three foot types are compared.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

EFFECT OF FOOT ASYMMETRY ON POSTURAL STABILITY BEFORE AND AFTER FATIGUE., Pragya Kumar INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH : Volume-8 | Issue-7 | July-2019

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