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J Clin Epidemiol. 2004 Mar;57(3):252-8.

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

Author information

  • 1Institute for Research in Extramural Medicine (EMGO Institute), VU University Medical Center, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands.

Abstract

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.

PMID:
15066685
[PubMed - indexed for MEDLINE]
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