From Global Balance Metrics to Plane-Specific Signatures: Identifying Postural Instability Phenotypes in Females

NCT07516197 | Completed

• 1 other identifier: approved from IRB
• Study Type: observational
• Target: 111
• Locations: 1 country
• Sites: 1

Brief Summary

The main aim of this study was to evaluate anterior-posterior (AP) and medial-lateral (ML) stability, examine proportional stability, and explore associations with BMI in healthy young adult females.

Conditions

Healthy

Keywords

Postural stability; APSI; MLSI; Biodex Balance System; BMI

Outcome Measures

Primary Outcomes (2)

• APSI

  anterior-posterior stability index

  one month

• MLSI

  Mediolateral stability index

  one month

Secondary Outcomes (1)

• BMI

  one months

Interventions

observational study, one group, one shot assessment DIAGNOSTIC_TEST

This study employed a cross-sectional observational design to evaluate postural stability characteristics and their associations with anthropometric variables in a cohort of healthy young adult females. The cross-sectional approach was selected to provide a snapshot of directional stability profiles and interrelationships between variables without the influence of intervention or temporal changes.

Eligibility Criteria

• Age: 20 Years - 29 Years
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

A total of 111 healthy female participants were recruited for this study, representing a homogeneous sample of young adults, aged 20-29 years, reflecting a population within early adulthood, a stage typically characterized by optimal neuromuscular function and postural control capacity.

You may qualify if:

• a relatively uniform and non-clinical population

You may not qualify if:

• any history of neurological disorders, vestibular dysfunction, musculoskeletal injuries affecting the lower limbs or spine within the preceding six months
• or any condition known to impair balance. Individuals with visual impairments not corrected by lenses
• taking medications that could influence neuromuscular performance or postural control
• those engaged in specialized balance training or high-level athletic activities were also excluded to minimize potential confounding effects.

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Faculty of Physical Therapy, Cairo University

Dokki, Giza Governorate, 11432, Egypt

Location

Related Publications (1)

• Zhang X, Ruan B, Gao Q. Dynamic postural stability indices in athletes: a case-control study on chronic ankle instability during multi-directional landing assessments. BMC Musculoskeletal Disorders. 2025 Dec;26(1):1093.

  BACKGROUND

Study Officials

• Azza M Abdelmohsen, professor

  Cairo University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: March 27, 2026
• First Posted: April 7, 2026
• Study Start: May 12, 2024
• Primary Completion: September 25, 2024
• Study Completion: October 25, 2024
• Last Updated: April 8, 2026

Record last verified: 2026-04

Data Sharing

• IPD Sharing: Will not share

Locations

EG (1)