title: [Association of physical functions with leisure-time, household, and occupational physical activity in community-dwelling older adults].
abstract: OBJECTIVE
  The study objective was to cross-sectionally examine the relationships among leisure-time, household, and occupational physical activity with physical functions in Japanese older adults.
  
  
  METHODS
  We randomly enrolled 189 community-dwelling older adults, aged 65 to 85 years, as subjects from the Basic Resident Register of Kasama City, Ibaraki prefecture. Physical activity was assessed by the Physical Activity Scale for the Elderly. Analysis of covariance was performed to determine the relationships between physical activity and physical functions, after adjustment for age and sex.
  
  
  RESULTS
  Leisure-time physical activity significantly correlated with one-leg balance with eyes open, sit and reach, timed standing test from along sitting position on the floor, functional reach, 5-repetition sit-to-stand, timed up and go, 5-m habitual walk, choice stepping reaction time, and power in sit-to-stand tests. Household physical activity was significantly related to 5-repetition sit-to-stand and ability in sit-to-stand. Total (leisure-time plus household plus occupational) activity was significantly correlated with one-leg balance with eyes open, functional reach, and power in sit-to-stand tests. Post-hoc testing indicated that the levels of physical functions were higher in the subjects of the third tertile than in those of the first or second tertile. No difference was found in physical functions between the first and second tertile.
  
  
  CONCLUSIONS
  Leisure-time physical activity was related to many physical functions. Household physical activity was also related to lower-extremity functions. Our data suggest that medium- or high-level physical activity may be necessary for older adults to maintain their physical functions.
authors.affiliation: Graduate School of Comprehensive Human Sciences, University of Tsukuba.
authors.forename: Kenji
authors.initials: K
authors.lastname: Tsunoda
authors.forename: Taishi
authors.initials: T
authors.lastname: Tsuji
authors.forename: Ji-Yeong
authors.initials: JY
authors.lastname: Yoon
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Muraki
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Okura
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D009790:Occupations; D010809:Physical Fitness / Q000502:physiology*; D011897:Random Allocation