title: Minimal Detectable Change for TUG and TUDS Tests for Children With Down Syndrome.
abstract: To determine test-retest reliability and minimal detectable change of the Timed Up and Go (TUG) and Timed Up and Down Stairs (TUDS) for Down syndrome.
  
  
  
  Twelve children with Down syndrome (DS) aged 3 to 17 years.
  
  
  
  Two sessions, 1 week apart, with 3 trials of the TUG and 2 trials of the TUDS. Test-retest reliability was estimated using intraclass correlation coefficients and the standard error of measurement. The minimal detectable changes (MDCs) for both tests were calculated.
  
  
  
  The TUG and TUDS tests both had high test-retest reliability. The MDC was 1.26 seconds for the TUG and 12.52 seconds for the TUDS test.
  
  
  
  Both tests were reliable in this population, but the MDC results suggest only the TUG is clinically useful.
authors.affiliation: Krannert School of Physical Therapy, University of Indianapolis, Indiana.
authors.forename: Kathy
authors.initials: K
authors.lastname: Martin
authors.forename: Michael
authors.initials: M
authors.lastname: Natarus
authors.forename: Jeremy
authors.initials: J
authors.lastname: Martin
authors.forename: Sarah
authors.initials: S
authors.lastname: Henderson
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000503:physiopathology* / Q000534:rehabilitation; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D026741:Physical Therapy Modalities; D015203:Reproducibility of Results; D013647:Task Performance and Analysis