NCT06490796

Brief Summary

This study was designed to investigate and compare the effects of standard diaphragmatic breathing and physiotherapy exercises versus 360-degree expandable diaphragmatic breathing and physiotherapy exercises on respiratory functions, respiratory muscle strength, clinical course of the disease (such as thoracic mobility, flexibility), and functional status in individuals with Ankylosing Spondylitis (AS).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 6, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

June 7, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

July 8, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
29 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2024

Completed
Last Updated

March 12, 2025

Status Verified

July 1, 2024

Enrollment Period

9 months

First QC Date

June 7, 2024

Last Update Submit

March 11, 2025

Conditions

Keywords

Ankylosing SpondylitisBreathingMobilityFunctional capacityPhysiotherapy

Outcome Measures

Primary Outcomes (1)

  • Spinal movements and spinal mobility

    The Bath Ankylosing Spondylitis Metrology Index (BASMI) will be used to measure clinical differences in spinal movements and spinal mobility. BASMI includes five measurements: cervical rotation, tragus-to-wall distance, lateral lumbar flexion, anterior lumbar flexion, and intermalleolar distance. A lower score on the BASMI indicates better spinal mobility (15).

    From enrollment to the end of treatment at 6 weeks

Secondary Outcomes (7)

  • Functional status

    From enrollment to the end of treatment at 6 weeks

  • Respiratory muscle strength

    From enrollment to the end of treatment at 6 weeks

  • Expiratory Forced Vital Capacity (FVC)

    From enrollment to the end of treatment at 6 weeks

  • Forced Expiratory Volume in one second (FEV1)

    From enrollment to the end of treatment at 6 weeks

  • Forced Expiratory Flow at 25-75% of FVC (FEF25-75%)

    From enrollment to the end of treatment at 6 weeks

  • +2 more secondary outcomes

Study Arms (2)

Expanded diaphragm exercise arm

EXPERIMENTAL

participants will use Ohmbelt device during 360-degree expansive diaphragm exercise session.

Behavioral: Expanded diaphragm exercise

Standard diaphragm exercise arm

ACTIVE COMPARATOR

participants will attend standard breathing exercise sessions.

Behavioral: Standard diaphragm exercise

Interventions

Individuals will be instructed in 360-degree expansive diaphragm exercises using the Ohmbelt device (Nilus Medical LLC, OHMBELT, Redwood City, CA, USA). Two Ohmbelt devices will be used in this study. The placement of the devices will be as described in the literature (14,23,24): The patient will be in a seated position with hips and knees flexed at 90 degrees, both feet supported on the ground, and sitting upright on a chair without back support. In this position, the Ohmbelt devices will be secured to the patient's body. Following respiratory exercises, they will be individually enrolled in the evidence-based consensus program for three-dimensional functional exercises recommended for AS patients (26,27). The exercise protocol, which includes warm-up, mobility, stretching, flexibility, and cool-down periods, will last for 20 minutes

Expanded diaphragm exercise arm

Individuals in this group will be instructed in standard diaphragm exercises. They will be asked to lie on their backs with their heads and knees supported by pillows, and to close their eyes to focus before starting. Following respiratory exercises, they will be individually enrolled in the evidence-based consensus program for three-dimensional functional exercises recommended for AS patients (26,27). The exercise protocol, which includes warm-up, mobility, stretching, flexibility, and cool-down periods, will last for 20 minutes.

Standard diaphragm exercise arm

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age between 20-60 years
  • Diagnosis according to the 1988 Modified New York criteria
  • Voluntary participation
  • BASDAI score of 3 or 4
  • No mental problems that could hinder cooperation and understanding

You may not qualify if:

  • Presence of a neurological disease
  • Other respiratory system diseases that could affect chest expansion (COPD, asthma, etc.)
  • Regular exercise within the last 3 months Additionally, individuals who miss four consecutive exercise sessions or require a change in treatment will be excluded from the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Izmir University of Economics

Izmir, İzmir, 35330, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Spondylitis, AnkylosingRespiratory Aspiration

Condition Hierarchy (Ancestors)

Axial SpondyloarthritisSpondylarthropathiesSpondylarthritisSpondylitisSpinal DiseasesBone DiseasesMusculoskeletal DiseasesAnkylosisJoint DiseasesArthritisRespiration DisordersRespiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assist Prof.

Study Record Dates

First Submitted

June 7, 2024

First Posted

July 8, 2024

Study Start

March 6, 2024

Primary Completion

December 1, 2024

Study Completion

December 30, 2024

Last Updated

March 12, 2025

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations