The purpose of this study is to find out the changes in the measurable parameters of the dynamic and static position of the foot, caused by the tibialis posterior muscle which is activated by the fatigue protocol. The study includes 30 healthy patients whose socio-demographic and descriptive characteristics are held. The changes in the dynamic and static position of foot were measured by pedobarography whereas the level of fatigue was measured by Borg Fatigue Scale.

The purpose of this study is to find out the changes in the measurable parameters of the dynamic and static position of the foot, caused by the tibialis posterior muscle which is activated by the fatigue protocol. The study includes 30 healthy patients whose socio-demographic and descriptive characteristics are held. The changes in the dynamic and static position of foot were measured by pedobarography whereas the level of fatigue was measured by Borg Fatigue Scale. The variables were investigated using Shapiro-Wilk's test to determine the normality. The student's t-test for paired samples were used to analyse, means (X), standard deviations (SD), 95% confidence intervals (95%CI), mean difference and Cohen's d-effect size were calculated. The significance level was set at .05. The effect size was considered 'small' if d= .20; 'medium' if .d=.5; 'large' if d= .8.

Inclusion Criteria:

• All participants were currently free from congenital or traumatic deformity to either lower extremity,
• A history of foot pain,
• Prior history of surgery to the foot and lower extremity
• A traumatic injury to the ankle or foot 12 months prior to the start of data collection.

Exclusion Criteria:

• Participants were excluded from this study if they had any orthopedic or neurological disorder, need to use an assistive device or orthoses.