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Lung

, Volume 196, Issue 3, pp 343–349 | Cite as

Clinical Determinants of Incremental Shuttle Walk Test in Adults with Bronchiectasis

  • Sulenur Yildiz
  • Deniz Inal-Ince
  • Ebru Calik-Kutukcu
  • Naciye Vardar-Yagli
  • Melda Saglam
  • Hulya Arikan
  • Lutfi Coplu
PULMONARY REHABILITATION

Abstract

Introduction

Exercise capacity is impaired in patients with bronchiectasis. Incremental shuttle walk test (ISWT) stresses cardiorespiratory system physiologically to symptom-limited maximal exercise capacity. The purpose of this study was to investigate the clinical determinants of ISWT in adults with non-cystic fibrosis (CF) bronchiectasis.

Methods

Forty-one clinically stable bronchiectasis patients aged 18–72 years (27 females, 14 males) participated in the study. Subjects’ demographics and physical characteristics were recorded. Bronchiectasis Severity Index was used to identify disease severity. Pulmonary function test was performed. Dyspnea perception was assessed using the modified Medical Research Council Dyspnea Scale. Maximum inspiratory and expiratory pressures were measured. Peripheral muscle strength using a hand held dynamometer was measured. ISWT was performed to determine exercise capacity. Fatigue Severity Scale, Hospital Anxiety and Depression Scale, Leicester Cough Questionnaire were used to determine fatigue, psychosocial status, and quality of life.

Results

Patients’ mean ISWT distance was 469.5 m. The ISWT distance was significantly related with age (r = − 0.472), height (r = 0.469), gender (r = 0.520), FEV1 (r = 0.651), and FVC (r = 0.545, p < 0.05). Quadriceps muscle strength was higher in males (p = 0.001) as compared to females. Age and gender were identified as independent predictors of the ISWT, explaining 42% of variance in ISWT distance (r = 0.649, r2 = 0.421, F(2,38) = 13.794, p < 0.001).

Conclusion

The clinical determinants of ISWT in clinically stable patients with non-CF bronchiectasis are age and gender. Pulmonary function, dyspnea perception, muscle strength, disease severity, fatigue, psychosocial factors, and health-related quality of life seems to have an independent effect on ISWT in this group of patients with bronchiectasis.

Keywords

Non-CF bronchiectasis Exercise capacity Shuttle walk test Pulmonary function Peripheral strength 

Notes

Compliance with Ethical Standards

Conflict of interest

None of the authors have any conflict of interest to declare in relation to this work.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Physiotherapy and Rehabilitation, Faculty of Health SciencesHacettepe UniversityAnkaraTurkey
  2. 2.Department of Chest Medicine, Faculty of MedicineHacettepe UniversityAnkaraTurkey

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