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Am J Public Health. 1991 Jun;81(6):771-3.

Measuring physical activity with a single question.

Author information

1
Division of Biostatistics, Washington University School of Medicine, St. Louis, MO 63110.

Abstract

Using 1,004 subjects enrolled in a worksite health promotion program, this report evaluated the validity of a single question about participation in regular exercise. Measured at baseline, this one question had a significant age-adjusted association with body mass index (p less than 0.0001 in women and p = 0.001 in men), HDL cholesterol (p less than 0.0001 in women), and oxygen capacity (p = 0.0007 in women and p = 0.002 in men). Thus, one self-reported question can provide useful information about who is and who is not participating in regular exercise. The potential validity of a single exercise question is particularly relevant in complex epidemiologic studies where lengthy questionnaires highlight the importance of brief instruments.

PMID:
2029054
PMCID:
PMC1405154
DOI:
10.2105/ajph.81.6.771
[Indexed for MEDLINE]
Free PMC Article

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