title: Physical performance tests after stroke: reliability and validity.
abstract: OBJECTIVE
  To evaluate the reliability and validity of the modified physical performance tests for stroke survivors who live in a community.
  
  
  METHODS
  The subjects included 40 stroke survivors and 40 apparently healthy independent elderly persons. The physical performance tests for the stroke survivors comprised two physical capacity evaluation tasks that represented physical abilities necessary to perform the main activities of daily living, e.g., standing-up ability (time needed to stand up from bed rest) and walking ability (time needed to walk 10 m).
  
  
  RESULTS
  Regarding the reliability of tests, significant correlations were confirmed between test and retest of physical performance tests with both short and long intervals in individuals after stroke. Regarding the validity of tests, the authors studied the significant correlations between the maximum isometric strength of the quardriceps muscle and the time needed to walk 10 m, centimeters reached while sitting and reaching, and the time needed to stand up from bed rest.
  
  
  CONCLUSIONS
  The authors confirmed that there were significant correlations between the instrumental activity of daily living and the time needed to stand up from bed rest, along with the time needed to walk 10 m for the stroke survivors. These physical performance tests are useful guides for evaluating a level of activity of daily living and physical frailty of stroke survivors living in a community.
authors.affiliation: Department of Public Health, Akita University School of Medicine, Akita City, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Maeda
authors.forename: T
authors.initials: T
authors.lastname: Yuasa
authors.forename: K
authors.initials: K
authors.lastname: Nakamura
authors.forename: S
authors.initials: S
authors.lastname: Higuchi
authors.forename: Y
authors.initials: Y
authors.lastname: Motohashi
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007537:Isometric Contraction; D007564:Japan; D008297:Male; D010809:Physical Fitness; D015203:Reproducibility of Results; D020521:Stroke / Q000175:diagnosis*; D000071939:Stroke Rehabilitation; D016138:Walking