Foot Positions Affect Basketball Players With Flatfoot

NCT06948812 | Completed

• 1 other identifier: BNS2
• Study Type: observational
• Target: 84
• Locations: 1 country
• Sites: 1

Brief Summary

This study investigated the effect of various initial foot positions on knee and ankle proprioception, balance, dynamic balance, vertical jump, and electromyographical muscle activity in basketball players with FF.

Conditions

Balance; Proprioception; Jumping Performance; EMG

Keywords

basket ball players; balance; flatfoot; electromyography; propioception

Outcome Measures

Primary Outcomes (6)

• Knee proprioception with repositioning error test

  The knee proprioception will be measured using the repositioning error test on the dominant leg to measure the absolute angular error. This test will assess the ability of the participant to reproduce a previously performed position (45 and 15 degrees of knee flexion).

  3 months

• Ankle proprioception with angular error measurement test

  This test will assess the ability of the participant to reproduce previously performed ankle positions (15° dorsiflexion and 15° plantar flexion.)

  3 months

• Static balance with The Y-Balance test

  The Y-Balance test will be used to evaluate static balance 27. The test will assess the ability of the participant to maintain balance while reaching as far as possible in all three directions (anterior (A), posteromedial (PM), and posterolateral (PL) directions).

  3 months

• Dynamic balance with Biodex Balance device

  In this study, dynamic balance will be measured by the Biodex Balance System (Biodex 945-302, Biodex Medical Systems Inc., New York, USA). The Biodex Balance System has been demonstrated to be a reliable and validated instrument to assess dynamic balance. The biodex will assess the anteroposterior and lateral stability.

  3 months

• Vertical jump height with vertical jump tester

  A vertical jump tester (Sports Imports, Columbus, OH)32 will be utilized to evaluate the vertical jump height in cm of each participant. The achieved height distance in cm in each step will be recorded, and the maximum height will be used in the statistical analysis.

  3 months

• Electromyographical activity (EMG) during one-leg standing

  A wireless surface EMG system will record electromyographical signals (EMG) of ankle muscles, including gastrocnemius (GE), soleus (SOL), tibialis anterior (TA), and peroneus longus (PL) muscles.

  3 months

Study Arms (3)

flexible FF

28 basketball player with flexible flatfoot and chronic ankle instability

Rigid FF

28 basketball player with rigid flatfoot and chronic ankle instability

Control

28 basketball player without flatfoot but chronic ankle instability

Eligibility Criteria

• Age: 18 Years - 24 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Basketball players with chronic ankle instability

You may qualify if:

• The presence of flatfoot in the dominant leg.
• The presence of chonic ankle instability

You may not qualify if:

• previous hip, pelvis, knee, or foot surgeries within the last year; obesity or pregnancy; leg-length discrepancies;
• Had any vestibular disorder neurological disorder, brain concussion within the last 3 months that may cause balance impairment; or administering any drugs that could disturb alertness or balance

Sponsors & Collaborators

• Beni-Suef University: lead

Study Sites (1)

Nahda University

Banī Suwayf, Beni Suweif Governorate, Egypt

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: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Lecturer

Study Record Dates

• First Submitted: April 15, 2025
• First Posted: April 29, 2025
• Study Start: September 1, 2023
• Primary Completion: April 30, 2024
• Study Completion: April 30, 2024
• Last Updated: April 29, 2025

Record last verified: 2025-04

Locations

EG (1)