Predictors of changes in gait performance over four years in persons with late effects of polio

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Reduced gait performance is common in persons with late effects of polio. OBJECTIVE: To identify predictors of change in gait performance over four years in persons with late effects of polio. METHODS: Gait performance was assessed annually in 51 ambulatory persons (mean age 64 years, SD 6) by the Timed "Up & Go" (TUG), Comfortable and Fast Gait Speed (CGS, FGS), and 6-Minute Walk Test (6MWT). Isokinetic knee extensor and flexor muscle strength was measured with a Biodex dynamometer. Mixed Linear Models were used to analyze changes in gait performance and to identify any predictors of change among the covariates gender, age, body mass index, time with new symptoms, baseline reduction in gait performance and knee muscle strength. RESULTS: There were significant linear effects over time (reduction per year) for three gait performance tests; CGS (0.8%; p<0.05), FGS (1.7%; p<0.001), and 6MWT (0.7%; p<0.05) with significant random effects for all tests. The strongest predictor of a change in gait performance was the individual variations in the knee flexor strength (p<0.001). CONCLUSION: The small gradual reduction in gait performance over time in persons with late effects of polio is primarily determined by the individual variations in the knee flexor strength.

Details

Authors
Organisations
External organisations
  • Skåne University Hospital
  • Luleå University of Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Physiotherapy

Keywords

  • gait, longitudinal, outcome assessment, Post poliomyelitis syndrome, rehabilitation
Original languageEnglish
Pages (from-to)403-411
Number of pages9
JournalNeuroRehabilitation
Volume41
Issue number2
Publication statusPublished - 2017
Publication categoryResearch
Peer-reviewedYes