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

J Clin Epidemiol. 2004 Mar;57(3):252-8. doi: 10.1016/j.jclinepi.2003.07.008.


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.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Activities of Daily Living
  • Aged
  • Aged, 80 and over
  • Epidemiologic Methods
  • Exercise*
  • Female
  • Humans
  • Male
  • Medical Records
  • Monitoring, Ambulatory / instrumentation
  • Motor Activity*