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Effect of Core Stability Exercises in Individuals With Bilateral Flexible Flat Foot

Effect of Core Stability Exercises on Medial Longitudinal Arch Height and Balance in Individuals With Bilateral Flexible Flat Foot

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07140861
Enrollment
40
Registered
2025-08-26
Start date
2025-09-01
Completion date
2026-05-01
Last updated
2026-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Flat Feet

Keywords

core stability exercises, medial longitudinal arch height, balance, bilateral flexible flat foot

Brief summary

There is a gap of literature about the role of core stability exercises on management of flexible flatfoot, as a result this study will take a deeper look on the effect of core stability exercises on navicular height, Arch height index, balance and disability function of ankle joint in individuals with bilateral flexible flat foot.

Detailed description

It was proved that Individuals with flexible flat foot have reduced core stability. Thus, core stability must be assessed while treating individuals with flexible flat foot and interventions that address core stability must be included in the treatment of flexible flat foot . It was demonstrated that there was a poorer balance in individual with bilateral flexible flat foot. Therefore, it is recommended to add balance training exercises to traditional physical therapy program in cases of flatfoot patients . 40 Participants of both genders with bilateral flexible flatfoot. will be assigned randomly into 2 equal groups: Group A (control group): will receive conventional therapy. Group B (Experimental group): will receive core training protocol and conventional therapy. Subjects will receive 3 sessions per week for 6 weeks. Outcome measures: 1. Navicular height: will be evaluated by navicular drop test. 2. Medial longitudinal arch height: will be evaluated by Arch height index (AHI). 3. Balance: will be evaluated by Biodex Balance System. 4. Disability function of ankle joint: will be evaluated by Arabic version of foot function index scale.

Interventions

OTHERConventional

patients will receive conventional therapy that include 1. Short foot exercises 2. Towel-curl exercise 3. Heel raise exercise 4. Calf stretch

OTHERExperimental

Core stability exercises: The training programs will last 6 weeks and comprise 3 training sessions per week. Each training session lasted 30 min, starting with a brief, standardized warm-up program mainly consisting of low-intensity core strength exercises to prepare the neuromuscular system for the training loads and ending with a cool-down program (i.e., dynamic stretching). During the main part of training, research group will conduct the "big 3" exercises as described by McGill (Mcgill, 2001). These include the curl-up, side bridge, and quadruped position. In other words, every single training session consisted of frontal, dorsal, and lateral core exercises. Training intensity will be progressed and individually increased over the 6-week training program by modulating lever lengths, movement velocity

Sponsors

Cairo University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

1. 40 Participants of both genders with bilateral flexible flatfoot. 2. Their age ranges from 18 to 39 years. 3. All Participants with a navicular drop (ND) greater than 10 mm. 4. Body mass index from 18.5-25 kg/m2

Exclusion criteria

1. Traumatic condition of the lower limbs. 2. History of Fracture of the lower limbs. 3. previous orthopedic disorders or neurologic deficit of the lower limbs. 4. Previous surgery of the lower limbs. 5. Any sensory problems. 6. Leg length discrepancy. 7. Neuromuscular disease like multiple scelerosis. 8. Unilateral flexible flat foot. 9. Rigid flat foot. 10. Any lumbar spine problems

Design outcomes

Primary

MeasureTime frameDescription
Navicular heightat enrollment and at the end of 6 weeks of treatment
Balanceat enrollment and at the end of 6 weeks of treatmentDynamic balance will be assessed by Biodex system

Secondary

MeasureTime frameDescription
Medial longitudinal arch heightat enrollment and at the end of 6 weeks of treatment
Function of ankle jointat enrollment and at the end of 6 weeks of treatmentFunction of ankle joint will be assessed by Arabic version of foot function index scale.

Countries

Egypt

Contacts

STUDY_DIRECTORMagda Gaid Professor of physical therapy - Cairo University

Department of Basic sciences for physical therapy, Faculty of Physical Therapy , Cairo university, Cairo, Egypt

PRINCIPAL_INVESTIGATORAhmed Abdou, Assistant lecturer

Department of Basic sciences for physical therapy, Faculty of Physical Therapy , Cairo university, Cairo, Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 15, 2026