Acute Training Effect Assessment in Adolescent Idiopathic Scoliosis

NCT07194564 | Active Not Recruiting

• 1 other identifier: UW24-747
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

This study aims to assess the immediate effects of a self-corrective exercise on muscle activity and spinal alignment in adolescents with idiopathic scoliosis. Eligible participants will undergo clinical assessments of spine deviation and surface electromyography (EMG) before and after a single session of guided self-controled and self-corrective exercise. The findings may help inform rehabilitation strategies for adolescent idiopathic scoliosis.

Conditions

Adolescence Idiopathic Scoliosis; AIS

Outcome Measures

Primary Outcomes (1)

• Back muscle symmetry assessed by surface electromyography (sEMG) using the Asymmetry Index (ASI).

  Surface EMG signals will be recorded from bilateral back muscles to assess muscle symmetry. The the Asymmetry Index (ASI) ranges from 0 to 1, where 1 indicates complete asymmetry and 0 indicates perfect symmetry. Higher values indicate greater asymmetry.

  Immediately after each exercise session.

Secondary Outcomes (1)

• Vertical line deviation (VLD) of spinous processes and sacrum in the coronal plane (posterior view)

  Immediately after each exercise session

Study Arms (2)

Control Exercise

ACTIVE COMPARATOR

Participants perform a standard exercise that does not include self-correction elements. This serves as the control condition for comparison.

Behavioral: Control Exercise

Self-corrective Exercise

EXPERIMENTAL

Participants perform a self-corrective exercise designed to improve spinal alignment and muscle activity.

Behavioral: Self-corrective Exercise

Interventions

Control Exercise BEHAVIORAL

A standard exercise without self-correction, performed by all participants as the control condition.

Control Exercise

Self-corrective Exercise BEHAVIORAL

A self-corrective exercise intervention targeting improved postural alignment and muscle activation.

Self-corrective Exercise

Eligibility Criteria

• Age: 10 Years - 19 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• adolescent males and females with AIS
• being aged 11 to 19 years

You may not qualify if:

• having a nonidopathic etiology of scoliosis
• history of spinal surgery; spine trauma (e.g., fracture or motor vehicle accident)
• metal implants (e.g., pacemaker)
• not capable of understanding and completing our motor tasks
• experiencing severe dermatological conditions or have open wounds at electrode placement sites.

Sponsors & Collaborators

• The University of Hong Kong: lead

Study Sites (1)

the Duchess of Kent Children's Hospital; the University of Hong Kong'

Hong Kong, Remote, Hong Kong

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Postdoctoral Fellow

Study Record Dates

• First Submitted: September 18, 2025
• First Posted: September 26, 2025
• Study Start: February 13, 2025
• Primary Completion: August 3, 2025
• Study Completion (Estimated): December 1, 2026
• Last Updated: October 2, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share

Locations

HK (1)