Quality and Independence of Gait Classification Scale for Duchenne Muscular Dystrophy (QIGS-DMD): the development, validity and reliability


Aydın-Yağcıoğlu G., Alemdaroğlu-Gürbüz İ., TUNCA Ö.

European Journal of Physiotherapy, cilt.28, sa.2, ss.100-105, 2026 (ESCI, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 2
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1080/21679169.2025.2479686
  • Dergi Adı: European Journal of Physiotherapy
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, CINAHL, EMBASE, SportDiscus, Academic Search Ultimate (EBSCO), Biomedical Reference Collection: Corporate Edition (EBSCO)
  • Sayfa Sayıları: ss.100-105
  • Anahtar Kelimeler: Duchenne muscular dystrophy, gait analysis, classification, scale development, gait scale, reliability and validity
  • Sağlık Bilimleri Üniversitesi Adresli: Evet

Özet

Purpose: Although the gait characteristics of patients with Duchenne muscular dystrophy (DMD) are so prominent, current scales are inadequate to evaluate and classify the gait characteristics observed in DMD in terms of quality and independence. The aim of this study was to develop a reliable and valid Gait Classification Scale for Duchenne Muscular Dystrophy (QIGS-DMD). Methods: The items of the QIGS-DMD were designed based on the literature review considering existing functional classification scales, gait scales and the opinions of the physiotherapists who were expertised in rehabilitation of patients with DMD. Content validity was determined based on the opinions of a total of 10 expert physiotherapists. Videos of 69 children with DMD walking were videotaped, and inter-rater and intra-rater reliability were examined. Criterion validity was determined according to the relationship between QIGS-DMD and motor function measure (MFM) and Vignos Lower Extremity Rating Scale (VLERS). Results: Agreement coefficients for inter- and intra-rater reliability were excellent for the five-item QIGS-DMD. Strong relations were determined between QIGS-DMD and VLERS and MFM. Conclusions: The disease-specific QIGS-DMD is a new scale that is valid and reliable to simply classify the quality and independence of gait in the DMD population without the need for special equipment.