Gait transitions of persons with and without intellectual disability

Stamatis Agiovlasitis, Joonkoo Yun, Michael J. Pavol, Jeffrey A. McCubbin, So Yeun Kim

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


This study examined whether the walk-to-run transition speed (W-RTS) and the run-to-walk transition speed (R-WTS) were different or more variable between participants with and without intellectual disability (ID). Nine adults with ID and 10 adults without ID completed in a series of walk-to-run and run-to-walk trials on a treadmill. W-RTS and R-WTS were identified using force-sensitive resistors. When transition speeds were expressed as Froude numbers to account for differences in leg length, W-RTS was slower, and intraindividual variability of W-RTS and R-WTS was greater in participants with ID. These findings support the idea that the unique constraints of individuals with ID result in altered attractor dynamics for walking and a weaker coupling between locomotor speed and order parameters governing gait transitions.

Original languageEnglish
Pages (from-to)487-494
Number of pages8
JournalResearch Quarterly for Exercise and Sport
Issue number4
StatePublished - Dec 2008


  • Locomotion
  • Motor control
  • Variability


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