The Effects of Lumbopelvic Rhythm on Postural Control, Daily Activities, and Quality of Life in Individuals With AIS (AIS)

February 1, 2026 updated by: CEM SAMUT, Hacettepe University

Investigation of the Effects of Lumbopelvic Rhythm on Postural Control, Daily Living Activities, and Quality of Life in Adolescent Individuals With Idiopathic Scoliosis

Adolescent idiopathic scoliosis (AIS) leads to three-dimensional spinal deformity during adolescence, causing deviations in the frontal, sagittal, and axial planes, impairing physical function, balance, and lumbopelvic rhythm. Individuals with AIS exhibit decreased trunk movement, muscle overactivation, increased energy expenditure, balance/gait disturbances, and abnormalities in proprioceptive/vestibular input; pressure center deviations increase in postural control. These changes negatively impact daily life, pain, and quality of life.

Although the literature has examined the relationships between AIS and muscle activation, range of motion, pelvic position, and gait/balance, the relationship between lumbopelvic rhythm changes and curve type/localization/severity, and its impact on postural control and quality of life, has not been investigated. This study aims to elucidate movement patterns by evaluating lumbopelvic rhythm in individuals with AIS and to guide clinical diagnosis/treatment.

Study Overview

Status

Enrolling by invitation

Conditions

Detailed Description

Adolescent idiopathic scoliosis (AIS) is a condition that emerges during adolescence and causes a three-dimensional deformity of the spine. This deformity can cause deviations in frontal, sagittal, and axial flight, negatively impacting physical function and balance control mechanisms. Lumbopelvic rhythm ensures the coordination of spinal and pelvic movements and is a critical factor for postural stability. Scoliosis can disrupt lumbopelvic rhythm by affecting pelvic and lumbar region movements. Individuals with AIS have been observed to exhibit changes such as decreased trunk flexion-extension movements and pelvic and hip movements during gait, overactivity of muscles involved in the spine and pelvis, increased energy expenditure, and changes in balance and limb alignment. Abnormalities in vestibular and proprioceptive input have also been observed, leading to changes in balance control. Postural control requires the integration of sensory and motor systems to maintain body balance. In individuals with scoliosis, changes in postural control can reduce mobility. Assessments of postural control, when compared to healthy individuals, have shown that those with scoliosis exhibit higher deviations and acceleration rates in pressure points. This can lead to difficulties in daily living activities, increased pain levels, and decreased quality of life. While the literature examines muscle activation, spinal range of motion, pelvic position, gait, and balance in individuals with AIS, studies on the distribution of lumbopelvic rhythm and its relationship to curvature type, localization, and work, as well as the impact of lumbopelvic rhythm on postural control and quality of life, have not been found. Therefore, evaluating lumbopelvic rhythm in individuals with AIS can contribute to a comprehensive understanding of changes in scoliosis-related movement patterns, guiding clinical diagnosis and treatment.

Study Type

Observational

Enrollment (Estimated)

50

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

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

Yes

Sampling Method

Non-Probability Sample

Study Population

The study group will consist of individuals diagnosed with AIS who apply to the Faculty of Physical Therapy and Rehabilitation at Hacettepe University. Participants in the healthy group will be selected using a snowball method from among the relatives of patients who apply to the Faculty of Physical Therapy and Rehabilitation or from among the relatives of the researchers.

Description

Inclusion Criteria:

  • Inclusion criteria for the AIS group:
  • Individuals diagnosed with AIS,
  • Aged between 10-18 years,
  • Having a Cobb angle greater than 10°,
  • Having a pain intensity < 3,
  • Volunteer individuals.

Exclusion Criteria:

  • Male gender,
  • Body mass index ≥30,
  • Presence of additional pathologies affecting the lumbopelvic region (disc herniation, spondylolisthesis, hip dysplasia, rheumatic diseases, etc.),
  • Chronic pain lasting longer than 3 months,
  • Lower extremity length discrepancy > 2 cm,
  • Orthopedic or neurological problems affecting the lower or upper extremity,
  • History of acute injury,
  • History of spinal surgery,
  • Individuals with vestibular pathology or severe balance disorders.

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
Participants diagnosed with scoliosis who are assessed at a single time point for observational meas
Adolescent idiopathic scoliosis 10-18 age

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Lumbopelvic rhythm,
Time Frame: January 30, 2025 - October 8, 2026
An Inertial Measurement Unit (IMU) will be used to assess lumbopelvic rhythm
January 30, 2025 - October 8, 2026
Postural control
Time Frame: January 30, 2025 - October 8, 2026
Postural control will be assessed using the Bertec Balance Check Screener™ strength platform (BP5050 Bertec Co., Columbus, OH, USA) (13).
January 30, 2025 - October 8, 2026

Collaborators and Investigators

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

Sponsor

Hacettepe University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

December 30, 2025

Primary Completion (Estimated)

April 8, 2026

Study Completion (Estimated)

October 8, 2026

Study Registration Dates

First Submitted

January 9, 2026

First Submitted That Met QC Criteria

February 1, 2026

First Posted (Actual)

February 5, 2026

Study Record Updates

Last Update Posted (Actual)

February 5, 2026

Last Update Submitted That Met QC Criteria

February 1, 2026

Last Verified

January 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • FTREK25/59

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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.

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