Clinical gait and balance scale (GABS): Validation and utilization

Madhavi Thomas, Joseph Jankovic, Monthaporn Suteerawattananon, Sharmin Wankadia, Kavitha Salomi Caroline, Kevin Dat Vuong, Elizabeth Protas

Research output: Contribution to journalArticle

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Abstract

Gait and Balance Scale (GABS) consists of historical information and examination of 14 different gait and balance parameters designed to assess the severity of these functional domains. Thirty-five patients with Parkinson's disease (PD), Hoehn and Yahr stages 1-3, were tested during their "off" period. GABS items were compared to quantitative data from two computerized gait analysis instruments, GAITRite and Pro Balance Master. Intra-class correlation coefficients were calculated to establish reliability. Intra-rater test-retest reliability was determined using Cohen's Kappa statistic. Concurrent validity was derived using the Spearman's rho test with the items from GABS, GAITRite and Balance Master. Intra-rater reliability was high with k>0.41 (k=kappa statistic) for 17 items, 6 had k>0.61. When performing validity measurements, a number of items on the GABS had a correlation coefficient significant at p<0.01 (2-tailed). Posture, pull test, balance during stance, single limb stance, tandem stance, turning, toe walking and functional reach had significant correlation with Balance Master data (R=0.46-1). Gait, arm swing, gait speed, steps/5 m, 'up-and-go test', modified performance oriented assessment of gait scale and provocative testing had significant correlation with the GAITRite items (R=0.51-0.83). GABS is an easy-to-use comprehensive clinical scale with high intra-rater and internal item reliability. We have shown concurrent validity with two computerized gait analysis instruments. We expect GABS to have a particular utility in clinical trials designed to modify functional impairment associated with abnormalities in gait and balance.

Original languageEnglish (US)
Pages (from-to)89-99
Number of pages11
JournalJournal of the neurological sciences
Volume217
Issue number1
DOIs
StatePublished - Jan 15 2004

All Science Journal Classification (ASJC) codes

  • Neurology
  • Clinical Neurology

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    Thomas, M., Jankovic, J., Suteerawattananon, M., Wankadia, S., Caroline, K. S., Vuong, K. D., & Protas, E. (2004). Clinical gait and balance scale (GABS): Validation and utilization. Journal of the neurological sciences, 217(1), 89-99. https://doi.org/10.1016/j.jns.2003.09.005