Background: Plantar fasciitis is associated with alteration of vertical ground reaction forces and pain that needs to be treated by using foot orthoses.
Objectives: The purpose of the case study is to find out the effect of modified foot orthoses on vertical ground reaction force and quantify the force with and without orthoses
Materials and methods: A female subject with unilateral plantar fasciitis in left foot was included in the study. Subject had been provided with modified foot orthosis. Pain was evaluated by using visual analogue scale and vertical ground reaction force was measured by Computer Dyanography Ultraflex Gait Analyser. All measures were acquired before the fabrication of Modified foot orthosis as a baseline data and after that modified foot orthoses was fabricated. Patient was discharged with the orthoses and after 12 weeks of follow up pain and vertical ground reaction force was measured.
Results: There was significant improvement in pain as well as ground reaction force by using modified foot orthosis. Vertical ground reaction forces measured during taking baseline data which was different from right foot at loading response, midstance and terminal stance. Follow up data was taken at 12 weeks after use of the orthosis. Pain ratings during baseline was 7.3 and 12 weeks of follow up pain was reduced by 3.8 measured by Visual analog scale.(VAS)
Conclusion: Modified foot orthosis significantly reduces pain experienced during walking and normalizes the vertical ground reaction force in patient with unilateral plantar fasciitis.
Keywords: Plantar Fasciitis, Modified Foot Orthosis, Vertical Ground Reaction Force, Visual Analogue Scale, Computer Dyanography Ultraflex gait analyzer.