Research on Physical Fitness and Flatfoot in Children

November 18, 2025 updated by: Chang Gung Memorial Hospital
This study aims to explore the relationship between children's physical fitness and flatfoot. Specifically, it is designed to determine whether fitness levels are linked to the incidence and severity of flatfoot and to explore other possible factors, including genetics, exercise behavior, and body weight.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

This study aims to examine the relationship between children's physical fitness and flatfoot. We will recruit a sample of children across different ages, genders, and fitness levels. Physical fitness will be assessed using standardized tests, including body composition, cardiorespiratory endurance, muscle strength, and flexibility. Foot structure and function will be evaluated through arch index and plantar pressure analysis to determine the presence and severity of flatfoot. Background information, such as age, gender, height, weight, exercise habits, and family history, will also be collected.

Study Type

Observational

Enrollment (Estimated)

600

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Taoyuan District, Taiwan, 333
        • Chang Gung Memorial Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

600 children aged 1-18 years from northern Taiwan

Description

Inclusion Criteria:

-Children aged 1-18 years

Exclusion Criteria:

  • Diagnosed with developmental delays
  • Diagnosed with neurological disorders
  • Presence of other congenital or acquired conditions causing impairments
  • Holders of a disability certificate
  • History of asthma
  • History of heart disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
preschool students
Children aged about 1-6 years from northern Taiwan.
Other: No intervention (observational study)
This is an observational study with no intervention.
primary school students
Children aged about 7-12 years from northern Taiwan.
Other: No intervention (observational study)
This is an observational study with no intervention.
middle school students
Children aged about 13-15 years from northern Taiwan.
Other: No intervention (observational study)
This is an observational study with no intervention.
high school students
Adolescents aged about 16-18 years from northern Taiwan.
Other: No intervention (observational study)
This is an observational study with no intervention.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Questionnaire Score
Time Frame: Baseline
Score from a self-designed questionnaire on lifestyle habits and foot-related symptoms. Scale range: higher scores = better habits, fewer symptoms.
Baseline
Body Fat Percentage
Time Frame: Baseline
Body fat percentage measured using InBody analyzer. Unit: Percent (%) (lower values indicate better body composition).
Baseline
Skeletal Muscle Mass
Time Frame: Baseline
Skeletal muscle mass measured using InBody analyzer. Unit: Kilograms (higher values indicate greater muscle mass).
Baseline
Cardiorespiratory Endurance
Time Frame: Baseline
Performance on standardized shuttle run test. Unit: Seconds (shorter time indicates better endurance).
Baseline
Handgrip Strength
Time Frame: Baseline
Grip strength measured using digital dynamometer. Unit: Kilograms (higher values indicate greater strength).
Baseline
Pinch Strength
Time Frame: Baseline
Pinch force measured with a pinch gauge. Unit: Kilograms (higher values indicate greater strength).
Baseline
Flexibility Test
Time Frame: Baseline
Sit and reach distance measured in centimeters. Unit: Centimeters (higher values indicate greater flexibility).
Baseline
Balance Ability
Time Frame: Baseline
Time maintaining one-leg stance without support. Unit: Seconds (longer time indicates better balance).
Baseline
Arch Index
Time Frame: Baseline
Foot arch index derived from footprint analysis. Unit: Ratio (0.2-0.3 indicates normal arch).
Baseline
Achilles Tendon Alignment
Time Frame: Baseline
Deviation angle of Achilles tendon alignment. Unit: Degrees (smaller angles indicate better alignment).
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Chang Gung Memorial Hospital

Investigators

  • Study Director: Chia-Ling Chen, MD, PhD, Chang Gung Memorial Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2024

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

May 31, 2026

Study Registration Dates

First Submitted

August 29, 2025

First Submitted That Met QC Criteria

November 18, 2025

First Posted (Actual)

November 20, 2025

Study Record Updates

Last Update Posted (Actual)

November 20, 2025

Last Update Submitted That Met QC Criteria

November 18, 2025

Last Verified

August 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 202400647B0

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Flatfoot

Clinical Trials on No intervention (observational study)

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Hungary

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe