Clinical trial Recruiting at 1 site Interventional Ages 18 to 35

Custom 3D-Printed Insoles and Short Foot Exercises for Flat Feet

Official title: The Effect of Custom 3D Printed Insoles and Short Foot Exercises on Foot Posture, Balance, and Gait Parameters in Individuals With Pes Planus

Run by Kutahya Health Sciences University · NCT07895602 · Data updated 2026-11-12

Researchers are testing whether custom 3D-printed arch-supported insoles plus daily short foot exercises can improve foot posture, balance, and walking in adults with flat feet.

Quick facts

Study typeInterventional
Ages18 Years to 35 Years
SexAll
Enrollment54 (estimated)
SponsorKutahya Health Sciences University
Academic / other
Locations1 site (Kütahya)
StatusRecruiting
StartedOctober 26, 2026
Main results expectedOctober 26, 2027
Study endsDecember 26, 2027
Registry record updatedNovember 5, 2026
Trial IDNCT07895602 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–35 with pes planus defined by Navicular Drop > 10 mm and FPI-6 between +6 and +12.

Probably not a fit

Individuals with rigid pes planus, significant foot conditions, or BMI ≥ 30 kg/m² may not benefit from this intervention.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This interventional study examines whether combining personalized 3D-printed medial arch supports with a daily short foot exercise program can improve foot posture, balance, and gait in people with pes planus. Participants will undergo 3D foot scanning to create customized insoles, wear them for 8 weeks, and perform a daily intrinsic foot muscle training routine. Outcomes are measured at baseline and after 8 weeks, including foot posture, dynamic balance, gait, plantar pressure, pain, quality of life, and functional walking capacity using the 6-minute walk test. Statistical analyses will compare baseline and week-8 results using either a paired t-test or Wilcoxon signed-rank test, with Cohen's d reported for effect size.

Why it matters

Potential benefit: If successful, the intervention could improve foot alignment, balance, and walking capacity for adults with pes planus.

How similar studies have gone: Previous work supports the use of foot insoles and targeted exercises for foot function, but this specific combined 3D-printed insole plus short foot exercise approach is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged between 18 and 35 years.
* Presence of pes planus, defined as a Navicular Drop test value \> 10 mm and a Foot Posture Index-6 (FPI-6) score between +6 and +12.
* Willingness to volunteer for the study and provide written informed consent.

Exclusion Criteria:

* Presence of rigid pes planus.
* Hallux valgus.
* Hallux rigidus.
* Calcaneal spur (heel spur).
* History of any neurological, cardiovascular, or systemic diseases.
* History of any orthopedic disease affecting the lower extremities.
* History of lower extremity surgery.
* Body Mass Index (BMI) ≥ 30 kg/m².

Where it's running

  • Kutahya Health Science University
    Kütahya, Turkey (Türkiye)
    Recruiting

Study contacts

  • Principal investigator: Emrah Afsar, Phd — Kutahya Health Science University
  • Study coordinator: Emrah Afsar, Phd
  • Email: emrah.afsar@ksbu.edu.tr
  • Phone: 5062527008

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.