title: Test-retest reliability and construct validity of the tinetti performance-oriented mobility assessment in people with stroke.
abstract: OBJECTIVE
  The Tinetti Performance-Oriented Mobility Assessment (POMA) is commonly used to measure balance ability in older adults. The purpose of this study was to determine the test-retest reliability and minimal detectable change (MDC) of the POMA and explore its cross-sectional and longitudinal construct validity for use in people early after stroke.
  
  
  METHODS
  Participants were recruited if they had a first documented stroke and were receiving physical therapy during inpatient rehabilitation. The POMA, gait speed, and motor Functional Independence Measure (FIM) scores were collected at admission and at discharge from inpatient rehabilitation. A second trial of the POMA was conducted 1 day after the first trial for reliability analysis. Correlations (Spearman ρ) between raw scores of admission and discharge outcome measures, as well as change in scores between admission and discharge, were used to explore the construct validity of the POMA.
  
  
  RESULTS
  Fifty-five people, with average age of 75 ± 11 years, who had experienced first documented stroke participated in the study and began inpatient physical therapy at a mean of 8 ± 5 days poststroke. Test-retest reliability intraclass correlation coefficient (ICC2,1) was 0.84 and MDC was 6 points. The POMA scores were moderately correlated to motor FIM and gait speed scores at admission (rs = 0.55 and 0.70) and discharge (rs = 0.55 and 0.82.) Change scores of all 3 measures had a fair correlation (rs = 0.28-0.51).
  
  
  CONCLUSIONS
  Test-retest reliability and MDC of the POMA in people with stroke is similar to previous research in older adult long-term care residents. Results support cross-sectional and longitudinal construct validity of the POMA in persons early after stroke and demonstrate validity and reliability to measure balance ability in this population.Video Abstract available (see Video, Supplemental Digital Content 1, http://links.lww.com/JNPT/A39) for more insights from the authors.
authors: Nova Southeastern University, Physical Therapy Program, Fort Lauderdale, Florida 33328, USA. canbek@nova.edu
authors: Jennifer
authors: J
authors: Canbek
authors: George
authors: G
authors: Fulk
authors: Leah
authors: L
authors: Nof
authors: John
authors: J
authors: Echternach
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005080:Exercise Test / Q000379:methods* / Q000592:standards; D005260:Female; D005684:Gait / Q000502:physiology; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D026741:Physical Therapy Modalities / Q000706:statistics & numerical data; D004856:Postural Balance / Q000502:physiology*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D020521:Stroke / Q000175:diagnosis*; D000071939:Stroke Rehabilitation; D013997:Time Factors; D016896:Treatment Outcome; D016138:Walking / Q000502:physiology