title: Validation of a historical physical activity questionnaire in middle-aged women.
abstract: BACKGROUND
  Historical physical activity (PA) questionnaires assess relationships between past PA and chronic diseases. The 4-Corner's Historical Physical Activity Questionnaire (HPAQ) was validated in 78 middle-age women.
  
  
  METHODS
  In 1996 and 1998, women kept PA records (PAR) for four consecutive days while wearing Caltrac accelerometers. In 2001, the same women recalled their past PA levels using the HPAQ. PA levels from the HPAQ were compared to PARs and the Caltrac. Race-adjusted Spearman correlations determined validity.
  
  
  RESULTS
  Low to modest correlations existed between PA (min/wk and MET-min/wk) from the HPAQ and PARs for moderate (r = 0.16 and 0.14, respectively), vigorous PA (r = 0.26 and 0.27, respectively; P < 0.05) and moderate-vigorous PA (r = 0.20 and 0.17, respectively). Moderate and moderate-vigorous, but not vigorous PA was positively related to energy expenditure expressed as kilocalories (r = 0.23, P < 0.05 and 0.22, -0.03, respectively) or PA volume (MET-min/wk) (r = 0.29, 0.29, P < 0.05 and 0.10, respectively).
  
  
  CONCLUSIONS
  The HPAQ can produce valid estimates of women's past moderate and vigorous PA levels.
authors.affiliation: Department of Exercise & Sport Science, East Carolina University, Greenville, NC 27858, USA.
authors.forename: Katrina D
authors.initials: KD
authors.lastname: DuBose
authors.forename: Sandra
authors.initials: S
authors.lastname: Edwards
authors.forename: Barbara E
authors.initials: BE
authors.lastname: Ainsworth
authors.forename: Jared P
authors.initials: JP
authors.lastname: Reis
authors.forename: Martha L
authors.initials: ML
authors.lastname: Slattery
mesh_terms: D000054:Acceleration; D000367:Age Factors; D002908:Chronic Disease; D004734:Energy Metabolism; D004812:Epidemiologic Methods; D016021:Epidemiologic Studies; D015444:Exercise; D005260:Female; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D008913:Minority Groups; D009043:Motor Activity; D011795:Surveys and Questionnaires