The Effect of Customized 3D Printed Insoles on Physical Activity Level, Balance, and Physical Performance in Patients with Pes Planus: A Randomized, Placebo Controlled, Double-Blinded Study

Abstract

Objective: The aim of this study was to investigate the effects of individually designed insoles on physical activity level, balance and functional performance in patients with pes planus. Methods: 38 participants were divided into 2 groups as 3D printed (n=20) and placebo(n=18). In the 3D printed group, medial longitudinal arch support, medial wedge of the foot, medial heel wedge and transverse arch support were given to the insoles according to the needs of the participants. The placebo group received placebo insoles. Range of motion, muscle strength, static and dynamic balance, physical and physical activity levels were measured at baseline, and eight weeks later (clinicaltrials.gov ID: NCT05306886). Results: Muscle strengths of the plantar flexion and eversion increased after the use of insoles in the 3D printed and placebo groups (p0.05), but there were significant improvements in dynamic balance in both groups (p