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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT07516197

Acronym

APSI-MLSI

Enrollment

111

Registered

2026-04-07

Start date

2024-05-12

Completion date

2024-10-25

Last updated

2026-04-08

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

Conditions

Healthy

Keywords

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

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.

Detailed description

Postural stability is essential for functional performance and injury prevention, with directional control influenced by neuromuscular and anthropometric factors. Limited data exist on proportional stability patterns and their relationship with body mass index (BMI). Therefore, 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.

Interventions

DIAGNOSTIC_TESTobservational study, one group, one shot assessment

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.

Study design

Observational model

OTHER

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 29 Years

Healthy volunteers

Yes

Inclusion criteria

* a relatively uniform and non-clinical population

Exclusion criteria

* 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.

Design outcomes

Primary

Measure	Time frame	Description
APSI	one month	anterior-posterior stability index
MLSI	one month	Mediolateral stability index

Secondary

Measure	Time frame	Description
BMI	one months	body mass index

Countries

Egypt

Contacts

PRINCIPAL_INVESTIGATORAzza M Abdelmohsen, professor

Cairo University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 9, 2026