Validity and Reliability of the Behavioral Regulation in Exercise Questionnaire-2 (BREQ-2) in Adolescents With Idiopathic Scoliosis

NCT07359781 | Not Yet Recruiting

• 1 other identifier: OHU-HHK-QV-2026-01
• Study Type: observational
• Target: 95
• Locations: 1 country
• Sites: 1

Brief Summary

Adolescent idiopathic scoliosis (AIS) is a spinal condition that develops during adolescence and often requires long-term conservative treatment, including scoliosis-specific therapeutic exercises. The success of exercise-based treatment largely depends on adolescents' motivation to start and continue exercising. However, exercise motivation has not been adequately evaluated in adolescents with idiopathic scoliosis using validated tools specific to this population. The Behavioral Regulation in Exercise Questionnaire-2 (BREQ-2) is a widely used questionnaire based on Self-Determination Theory that assesses different types of motivation toward exercise. Although the Turkish version of the BREQ-2 exists, its validity and reliability have not yet been examined in adolescents with idiopathic scoliosis. The purpose of this study is to evaluate the validity and reliability of the Turkish version of the BREQ-2 in adolescents diagnosed with idiopathic scoliosis. Adolescents aged 10-19 years who have been participating in scoliosis-specific therapeutic exercise programs for at least two months will be invited to complete online questionnaires. The results of this study will help determine whether the BREQ-2 is an appropriate tool for assessing exercise motivation in this population and may support the development of individualized motivational strategies in scoliosis rehabilitation.

Conditions

Adolescence Idiopathic Scoliosis

Keywords

Adolescent idiopathic scoliosis, Exercise motivation, Behavioral regulation, Validity and reliability, Self-determination theory

Outcome Measures

Primary Outcomes (1)

• Validity and Reliability of the Behavioral Regulation in Exercise Questionnaire-2 (BREQ-2)

  The primary outcome is the psychometric evaluation of the Turkish version of the Behavioral Regulation in Exercise Questionnaire-2 (BREQ-2) in adolescents with idiopathic scoliosis, including internal consistency, test-retest reliability, and criterion-related validity.

  Baseline assessment; test-retest reliability assessed over a 2-week interval

Study Arms (1)

Adolescents With Idiopathic Scoliosis

Adolescents aged 10-19 years diagnosed with adolescent idiopathic scoliosis who have been receiving scoliosis-specific exercise therapy for at least two months and who voluntarily participate in the study.

Other: Questionnaire Assessment

Interventions

Questionnaire Assessment OTHER

No intervention is administered. Participants complete self-reported questionnaires (BREQ-2, QPSSE motivation subscale, and EMI-2) for the assessment of exercise motivation.

Adolescents With Idiopathic Scoliosis

Eligibility Criteria

• Age: 10 Years - 19 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

The study population consists of adolescents aged 10 to 19 years who have been diagnosed with adolescent idiopathic scoliosis and are currently receiving scoliosis-specific exercise-based physiotherapy.

You may qualify if:

• Aged between 10 and 19 years
• Diagnosed with adolescent idiopathic scoliosis
• Receiving scoliosis-specific therapeutic exercise treatment for at least 2 months
• Able to read and write in Turkish
• Volunteered to participate in the study and provided informed consent

You may not qualify if:

• Presence of congenital or neuromuscular scoliosis
• Presence of systemic disease
• Presence of syndromic conditions such as Marfan syndrome or Ehlers-Danlos syndrome

Sponsors & Collaborators

• Nigde Omer Halisdemir University: lead

Study Sites (1)

Nigde Omer Halisdemir University

Niğde, Niğde Province, Turkey (Türkiye)

Location

Central Study Contacts

Hafize Hilal KARGIN

CONTACT

+905447121998; hafizehilalkargin@ohu.edu.tr

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer

Study Record Dates

• First Submitted: January 13, 2026
• First Posted: January 22, 2026
• Study Start: January 1, 2026
• Primary Completion (Estimated): September 1, 2026
• Study Completion (Estimated): December 1, 2026
• Last Updated: January 28, 2026

Record last verified: 2026-01

Locations

TU (1)