Validity and reliability of the shuttle walk test in people with multiple sclerosis

Abstract

Purpose: It is known that people with multiple sclerosis (PwMS) have reduced exercise capacity, and field tests are practical for assessing exercise capacity. This study aims to investigate the reliability, validity, and minimal detectable change (MDC) of the shuttle walk test (SWT) in PwMS. Methods: This study included people diagnosed with multiple sclerosis according to McDonald's criteria, with an expanded disability status scale (EDSS)≤3, and with independent walking. The socio-demographic information of 38 participants who met the inclusion criteria was recorded. Six Minute Walk Test (6MWT), SWT I and II were evaluated twice with one-hour rest intervals. At the end of the tests, walking distances were recorded. Results: PwMS showed strong correlations between vital signs, fatigue, dyspnea, walking distance, and VO2max values measured after 6MWT and SWT I (p<0.05). Also, there was a moderate agreement between the vital signs, fatigue dyspnea, walking distance, and VO2max values measured after SWT I and SWT II (p<0.05). MDC value for SWT was 133,62m. Conclusion: The SWT was reliable and valid in determining exercise capacity in PwMS with EDSS≤3.

Keywords

• Multiple sclerosis
• 6-min Walk Test
• Shuttle Walk Test

Multipl sklerozlu bireylerde mekik yürüme testinin geçerliliği ve güvenilirliği

Abstract

Amaç: Multipl sklerozlu bireylerin egzersiz kapasitesinin azaldığı ve saha testlerinin egzersiz kapasitesini değerlendirmek için pratik olduğu bilinmektedir. Bu çalışma, multipl sklerozlu bireylerde mekik yürüme testinin (MYT) güvenilirliğini, geçerliliğini ve minimal klinik anlamlılık değerini (MDC) araştırmayı amaçlamaktadır. Yöntem: Bu çalışmaya McDonald's kriterlerine göre multipl skleroz tanısı almış, genişletilmiş engellilik durumu ölçeği (EDSS) ≤3 olan ve bağımsız yürüyüşe sahip bireyler dahil edildi. Dahil etme kriterlerini karşılayan 38 katılımcının sosyo-demografik bilgileri kaydedildi. Altı Dakika Yürüme Testi (6DYT), MYT I ve II bir saatlik dinlenme aralıklarıyla iki kez değerlendirildi. Testlerin sonunda yürüme mesafeleri kaydedildi. Bulgular: 6DYT ve MYT I'den sonra ölçülen vital bulgular, yorgunluk, dispne, yürüme mesafesi ve VO2max değerleri arasında güçlü ilişki vardı (p<0,05). Ayrıca, MYT I ve MYT II'den sonra ölçülen vital bulgular, yorgunluk dispnesi, yürüme mesafesi ve VO2max değerleri arasında orta düzeyde ilişki olduğu belirlendi (p<0,05). MYT için MDC değeri 133,62m idi. Tartışma: MYT, EDSS≤3 multipl sklerozlu bireylerde olan egzersiz kapasitesini belirlemede güvenilir ve geçerlidir.

Keywords

• Multiple skleroz
• 6dk Yürüme Testi
• Mekik Yürüme Testi

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