title: Feasibility and reliability of physical fitness tests in older adults with intellectual disability: a pilot study.
abstract: BACKGROUND
  Physical fitness is relevant for wellbeing and health, but knowledge on the feasibility and reliability of instruments to measure physical fitness for older adults with intellectual disability is lacking.
  
  
  METHODS
  Feasibility and test-retest reliability of a physical fitness test battery (Box and Block Test, Response Time Test, walking speed, grip strength, 30-s chair stand, 10-m Incremental Shuttle Walking Test and the Extended Modified Back-Saver Sit-and-Reach Test) were investigated in older adults with ID in a convenience sample of 36 older adults (mean 65.9, range 50-89 years), with differing levels of intellectual disability and mobility.
  
  
  CONCLUSIONS
  All tests to measure physical fitness in older adults with ID had moderate to excellent feasibility and had sufficient test-retest reliability (ICCs .63-.96). No statistically significant learning effects were found.
authors.affiliation: Intellectual Disability Medicine, Department of General Practice, Erasmus Medical Center Rotterdam, Rotterdam, the Netherlands. t.hilgenkamp@erasmusmc.nl
authors.forename: Thessa I M
authors.initials: TI
authors.lastname: Hilgenkamp
authors.forename: Ruud
authors.initials: R
authors.lastname: van Wijck
authors.forename: Heleen M
authors.initials: HM
authors.lastname: Evenhuis
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D005080:Exercise Test / Q000295:instrumentation / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008607:Intellectual Disability; D008297:Male; D008875:Middle Aged; D010807:Physical Endurance; D010809:Physical Fitness; D010865:Pilot Projects; D004856:Postural Balance; D011594:Psychometrics / Q000379:methods; D011930:Reaction Time; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D016138:Walking