Comparison of the LASA Physical Activity Questionnaire with a 7-day diary and pedometer

Vianda S. Stel, Johannes H. Smit, Saskia M.F. Pluijm, Marjolein Visser, Dorly J.H. Deeg, Paul Lips

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Objective First, to validate the LASA Physical Activity Questionnaire (LAPAQ) by a 7-day diary and a pedometer in older persons. Second, to assess the repeatability of the LAPAQ. Third, to compare the feasibility of these methods. Study design and setting The study was performed in a subsample (n=439, aged 69-92 years) of the Longitudinal Aging Study Amsterdam (LASA). The LAPAQ was completed twice (1998/1999, 1999/2000). Respondents completed a 7-day activity diary and wore a pedometer for 7 days (1999/2000). Results The LAPAQ was highly correlated with the 7-day diary (r=0.68, P<.001), and moderately with the pedometer (r=0.56, P<.001). The repeatability of the LAPAQ was reasonably good (weighted kappa: 0.65-0.75). The LAPAQ was completed in 5.7±2.7 min, and 0.5% of the respondents had missing values. Conclusion The LAPAQ appears to be a valid and reliable instrument for classifying physical activity in older people. The LAPAQ was easier to use than the 7-day diary and pedometer.

Original languageEnglish
Pages (from-to)252-258
Number of pages7
JournalJournal of Clinical Epidemiology
Issue number3
Publication statusPublished - Mar 2004
Externally publishedYes


  • Aged
  • Exercise
  • Physical activity assessment
  • Questionnaire
  • Reliability
  • Validity


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