Comparison of Lower Extremity Biomechanics and Postural Stability in Individuals With Pes Planus

NCT07200843 | Completed

• 1 other identifier: : 2022-08
• Study Type: observational
• Target: 41
• Locations: 1 country
• Sites: 1

Brief Summary

The goal of this observational study is to examine the relationship between plantar flexor endurance and postural and tibial sway in adults (≥18 years) with pes planus (flatfoot). The main questions it aims to answer are: Is there a correlation between plantar flexor endurance, postural sway and tibial sway during single-leg stance? Participants will: Perform a heel rise test to assess plantar flexor endurance Stand on one leg while wearing a motion sensor to measure postural and tibial sway Complete the tests under both eyes-open and eyes-closed conditions

Conditions

Pes Planus

Outcome Measures

Primary Outcomes (1)

• Plantar flexor endurance measured by heel rise test

  The number of repetitions participants can perform during the heel rise test, assessing the endurance of the plantar flexor muscles. Participants stood on one leg and raised their heels in time with a metronome set at 40 beats per minute. The test ended when the participant was fatigued or unable to continue, and the number of heel rises completed was recorded. The test was performed on both lower limbs.

  Measured once at baseline during the study visit.

Secondary Outcomes (2)

• Postural sway during single-leg stance

  Measured once at baseline during the study visit.

• Tibial sway during single-leg stance

  Measured once at baseline during the study visit.

Study Arms (1)

Pes Planus Group

Participants aged 18 years and older with a navicular drop test result of at least 10 mm were included. Individuals with chronic diseases, hearing or vision impairments, orthopedic injuries or surgical history, and leg length discrepancy were excluded.

Other: Heel rise test and postural/tibial sway measurement

Interventions

Heel rise test and postural/tibial sway measurement OTHER

Participants undergo a heel rise test to assess plantar flexor muscle endurance. Postural and tibial sway are measured during single-leg stance using a wearable sensor under eyes-open and eyes-closed conditions. No therapeutic intervention is applied.

Pes Planus Group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The study population consists of adults aged 18 years and older with a navicular drop test result of at least 10 mm. Participants were recruited through convenience sampling from the university student population. Individuals with chronic diseases, hearing or vision impairments, orthopedic injuries or surgical history, or leg length discrepancy were excluded.

You may qualify if:

• Participants aged 18 years and older
• A navicular drop test result of at least 10 mm

You may not qualify if:

• Individuals with chronic diseases, hearing or vision impairments, orthopedic injuries or surgical history, and leg length discrepancy

Sponsors & Collaborators

• sevilay seda bas: lead

Study Sites (1)

Ankara Yıldırım Beyazıt University, Department of Physiotherapy and Rehabilitation

Ankara, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Flatfoot

Condition Hierarchy (Ancestors)

Talipes; Foot Deformities, Acquired; Foot Deformities; Musculoskeletal Diseases; Foot Deformities, Congenital; Lower Extremity Deformities, Congenital; Limb Deformities, Congenital; Musculoskeletal Abnormalities; Congenital Abnormalities; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Asst. Prof.

Study Record Dates

• First Submitted: September 23, 2025
• First Posted: October 1, 2025
• Study Start: June 29, 2022
• Primary Completion: October 31, 2022
• Study Completion: October 31, 2022
• Last Updated: October 1, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)