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Core stability and balance in patients with ankylosing spondylitis

  • Yasemin AcarEmail author
  • Nursen Ilçin
  • Barış Gürpinar
  • Gerçek Can
Observational Research

Abstract

The main purpose of this study was to compare core stability and balance between ankylosing spondylitis (AS) patients and healthy controls. AS patients diagnosed according to the Modified New York criteria and healthy age- and sex-matched controls were included in the study. Clinical status of AS patients was assessed using Bath AS Disease Activity Index (BASDAI), Bath AS Functional Index (BASFI), Bath AS Spinal Mobility Index (BASMI). For evaluation of core stability, static and dynamic core endurance and hip strength were assessed. Trunk flexor and extensor endurance, lateral side bridge tests for static core endurance; modified sit-up test for dynamic core endurance were used. Hip strength was measured with a hand-held dynamometer. Biodex Balance System was used to assess static and dynamic balance. Bilateral standing static and dynamic postural stability, single leg standing postural stability and limits of stability test results were recorded. 64 AS patients (40 male, 24 female) and 64 healthy controls (39 male, 25 female) were assessed. Static and dynamic core endurance test results, hip abductor strength were significantly higher in control group than AS group (p < 0.05). Static postural stability and left leg postural stability test results were significantly better in control group than AS group (p < 0.05). Overall, forward, backward, and right, limits of stability test results were significantly higher in control group (p < 0.05). The results of our study demonstrate that AS has negative effects on core stability and balance. It would be beneficial to add core stability and balance training to AS patients’ rehabilitation program.

Keywords

Spondylitis Ankylosing Postural balance Spine Abdominal muscles Back muscles 

Notes

Author contributions

YA conducted the literature search for the background of the study, collected, analyzed and interpreted statistical data, wrote the majority of the manuscript. NI contributed to the design and implementation of the research, the analysis of the results and the writing of the manuscript. BG and GC contributed to the design of the study, the collection of data and the revision of the manuscript. All authors read and approved the final manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare no conflicts of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Human and animal rights statement

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Physical Therapy and Rehabilitation Department, Graduate School of Health SciencesDokuz Eylül UniversityIzmirTurkey
  2. 2.School of Physical Therapy and RehabilitationDokuz Eylül UniversityIzmirTurkey
  3. 3.Division of Rheumatology, Department of Internal Medicine, School of MedicineDokuz Eylül UniversityIzmirTurkey

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