DÄ internationalArchive33-34/2015Validated Questionnaire Should Be Used
LNSLNS

The decrease by almost 40% in physical inactivity in their leisure time in 70–81 year olds in Mecklenburg-Western Pomerania in the 10-year comparison is to be welcomed (1). On reading the report of this very interesting population-based study, I was not quite clear whether the data on the very complex and multidimensional behavior of habitual physical activity had been collected by using a single item question or the Baecke questionnaire (2)—as an earlier publication by the authors would lead me to believe (3). For this reason I would ask the authors to clarify this briefly. I would like to add that modified versions of Baecke’s original questionnaire have shown greater test-retest reliability in older study populations. In future it would be desirable, depending on the situation and the cases, if the operationalizing instruments were to consider subjective expectations of benefit and needs in relation to physical activity more strongly.

DOI: 10.3238/arztebl.2015.0563a

Dr. oec. troph. Martin Hofmeister

Verbraucherzentrale Bayern e.V.,
Referat Lebensmittel und Ernährung, München

hofmeister@vzbayern.de

1.
Völzke H, Ittermann T, Schmidt CO, et al.: Prevalence trends in lifestyle-related
risk factors—two cross-sectional analyses with a total of 8728 participants from the
Study of Health in Pomerania from 1997 to 2001 and 2008 to 2012. Dtsch
Arztebl Int 2015; 112: 185–92 VOLLTEXT
2.
Baecke JA, Burema J, Frijters JE: A short questionnaire for the
measurement of habitual physical activity in epidemiological studies. Am J Clin Nutr 1982; 36: 936–42 MEDLINE
3.
Völzke H, Alte D, Schmidt CO, et al.: Cohort profile: the study of health in Pomerania. Int J Epidemiol 2011; 40: 294–307 CrossRef MEDLINE
1.Völzke H, Ittermann T, Schmidt CO, et al.: Prevalence trends in lifestyle-related
risk factors—two cross-sectional analyses with a total of 8728 participants from the
Study of Health in Pomerania from 1997 to 2001 and 2008 to 2012. Dtsch
Arztebl Int 2015; 112: 185–92 VOLLTEXT
2.Baecke JA, Burema J, Frijters JE: A short questionnaire for the
measurement of habitual physical activity in epidemiological studies. Am J Clin Nutr 1982; 36: 936–42 MEDLINE
3.Völzke H, Alte D, Schmidt CO, et al.: Cohort profile: the study of health in Pomerania. Int J Epidemiol 2011; 40: 294–307 CrossRef MEDLINE

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