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Acta Neurologica Belgica

, Volume 113, Issue 4, pp 397–402 | Cite as

Correlation analysis of visual analogue scale and measures of walking ability in multiple sclerosis patients

  • Petar Filipović GrčićEmail author
  • Meri Matijaca
  • Ivica Bilić
  • Gordan Džamonja
  • Ivo Lušić
  • Krešimir Čaljkušić
  • Vesna Čapkun
Original Article

Abstract

Walking limitation assessment in multiple sclerosis patients (MSPs) is a demanding task, especially in the clinical setting. The aim of this study is to correlate the visual analogue scale (VAS), a simple method for measuring subjective experience, with measures of walking ability used in clinical research of MS. The study included 82 ambulatory MSPs who have resided in the local community. The applied measures of walking ability were the following: the single-item and patient-rated Walking Ability Visual Analogue Scale (WA-VAS), the Expanded Disability Status Scale (EDSS), the 25-foot walk test (25FWT), the Six Spot Step Test (SSST), the 2 min timed walk (2 min TW), the Multiple Sclerosis Walking Scale-12 (MSWS-12), and step activity monitor accelerometer (SAM) during 7 day period. The SAM analysis included the average daily step count, the average steps/min of the highest 1 min of a day, and the average steps/min of the highest continuous 60 min of a day. The WA-VAS scores significantly and strongly correlated with EDSS (ρ = 0.679, P < 0.001), 25FWT (ρ = 0.606, P < 0.001), SSST (ρ = 0.729, P < 0.001), 2 min TW (ρ = −0.643, P < 0.001), MSWS-12 (ρ = 0.746, P < 0.001), average daily step count (ρ = –0.507, P < 0.001), average steps/min of the highest 1 min of a day (ρ = –0.544, P < 0.001), and average steps/min of the highest continuous 60 min of a day (ρ = −0.473, P < 0.001). Correlations between WA-VAS and measures of walking ability used in clinical research of MS were satisfactory. The results obtained in this research indicate that the WA-VAS could be an instrument for simple measurement of walking limitations in MSPs in the clinical setting.

Keywords

Multiple sclerosis Visual analogue scale Walking ability Walking-based measures 

Notes

Acknowledgments

We wish to thank the patients who participated in this study.

Conflict of interest

The authors of this study declare that they have no conflict of interest.

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Copyright information

© Belgian Neurological Society 2013

Authors and Affiliations

  • Petar Filipović Grčić
    • 1
    Email author
  • Meri Matijaca
    • 1
  • Ivica Bilić
    • 1
  • Gordan Džamonja
    • 1
  • Ivo Lušić
    • 1
  • Krešimir Čaljkušić
    • 1
  • Vesna Čapkun
    • 2
  1. 1.Department of NeurologyUniversity Hospital Center SplitSplitCroatia
  2. 2.Department of Nuclear MedicineUniversity Hospital Center SplitSplitCroatia

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