Reliability of PHAS in Postural Hyperkyphosis
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age8-65
SponsorIstanbul University - Cerrahpasa
About this trial
This observational, cross-sectional study aims to evaluate the reliability of the Postural Habits and Awareness Scale (PHAS) in patients with postural hyperkyphosis. The PHAS is designed to assess individuals' postural awareness and habits through four subscales. A total of 128 participants diagnosed with postural hyperkyphosis will complete the PHAS and the Kyphosis-Specific Spinal Appearance Questionnaire (KSSA). Test-retest reliability will be assessed by reapplying the PHAS after two weeks. Internal consistency, test-retest reliability, and concurrent validity will be analyzed. The study aims to provide a valid and reliable tool for evaluating postural awareness in clinical practice and future rehabilitation studies.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age between 8 and 65 years
Diagnosed with postural hyperkyphosis (Cobb angle ≥ 50° confirmed by clinical and radiological evaluation)
Ability to perform daily activities independently
Voluntary participation and signed informed consent
Disqualifiers
Presence of scoliosis or other spinal deformities
Kyphosis due to severe osteoporosis or pathological fractures
Diagnosis of ankylosing spondylitis or other inflammatory spinal diseases
Functional limitations due to acute or chronic pain
Trial population
The study population consists of individuals diagnosed with postural hyperkyphosis. Participants will include patients aged 8 to 65 years who have been clinically and radiologically confirmed to have postural hyperkyphosis with a Cobb angle of 50° or higher. All participants are expected to be capable of performing daily activities independently.
Trial design
Design model
Case-only
Time perspective
Cross-sectional
Treatments tested in this trial
PHAS Assessment
BehavioralParticipants will complete the Postural Habits and Awareness Scale (PHAS) to assess postural awareness and habits. The scale will be administered twice, two weeks apart, to evaluate reliability.
Treatment groups
128 Participants
are divided into 1 treatment groupGroup A: Hyperkyphosis Group1 intervention
Trial outcomes
Primary outcomes
1
Reliability of the Postural Habits and Awareness Scale (PHAS)
Internal consistency will be evaluated using Cronbach's Alpha. Test-retest reliability will be assessed by calculating the Intraclass Correlation Coefficient (ICC) between two PHAS administrations. The PHAS consists of 19 items, each scored on a 5-point Likert scale (total score range: 19 to 95). Higher scores indicate better postural habits and awareness. Higher ICC values indicate better reliability.
Time frame
2 weeksSecondary outcomes
1
Kyphosis-Specific Spinal Appearance Questionnaire (KSSAQ)
The KSSAQ is a 10-item, 5-point Likert scale (range: 1 to 5 per item, total score range: 10 to 50) designed to assess patients' perception of their spinal appearance related to thoracic hyperkyphosis. Higher scores indicate worse perceived deformity and greater concern about appearance. The correlation between PHAS and KSSAQ scores will be calculated to determine concurrent validity.
Time frame
BaselineSponsors and contacts
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Source ClinicalTrials.gov