Ultrasound Assessment of Neck Muscles and Balance in Male Patients With Ankylosing Spondylitis

Condition(s) studied

Investigational drug(s) / intervention(s)

Ultrasonographic assessment of Cervical Multifidus and Longus Colli Muscle Thickness, Postural Balance and Limit of Stability using the balance platform,Cervical Flexion and Extension Strength: Intervention Description Participants in both groups will undergo ultrasonographic measurement of cervical multifidus and longus colli muscle thickness. Postural sway, Limits of Stability (LOS), and a 6-direction balance test (ABC-6) will be assessed using the HUR SmartBalance BTG4 platform under stable and unstable conditions with eyes open and closed. Functional balance will be evaluated with the Berg Balance Scale (BBS), Timed Up and Go (TUG) Test, and Single-Leg Stance Test. Isometric cervical flexion and extension strength will be measured bilaterally using a hand-held dynamometer. Ankylosing Spondylitis patients will additionally complete BASFI, BASMI, BASDAI, and ASQoL questionnaires.

Study summary

The aim of this study is to evaluate the relationship between ultrasonographic measurements of the cervical muscles and balance parameters in patients diagnosed with ankylosing spondylitis (AS)

Eligibility

Primary outcome measure(s)

• Mean Bilateral Thickness of Cervical Multifidus Muscle Assessed by Ultrasonography — baseline
  Bilateral measurement of cervical multifidus muscle thickness using musculoskeletal ultrasound imaging. Results will be reported in millimeters (mm). Data will be summarized as mean ± standard deviation.
• Mean Bilateral Thickness of Cervical Longus Colli Muscle Assessed by Ultrasonography — baseline
  Bilateral measurement of cervical longus colli muscle thickness using musculoskeletal ultrasound imaging. Results will be reported in millimeters (mm). Data will be summarized as mean ± standard deviation.
• Limits of Stability (LOS) Test — baseline
  The Limits of Stability (LOS) test will be conducted using the HUR SmartBalance platform. Participants will be asked to lean maximally forward, backward, to the right, and to the left, each for a duration of 8 s without lifting the sole and heel of the foot or correcting their feet. Using these methods, the individual's stability limits will be tested in four directions. The LOS score quantifies the subject's ability to voluntarily control posture within their stability limits. The leaning angle is based on the person's height and how far the center of pressure move from the normal position. A lower LOS score indicates impaired postural control and balance performance.

Trial sites (1)

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