Bulletin of the World Health Organization · 2026
How a 10-minute bout requirement for physical activity affects guideline adherence estimates, Germany.
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Brummer Julian, Stein Michael J, Baurecht Hansjörg, Brandes Mirko, Buck Christoph, Hebestreit Antje, Krist Lilian, Leitzmann Michael, Weber Andrea, Harth Volker, Heise Jana-Kristin, Katzke Verena, Keil Thomas, Kluttig Alexander, Meinke-Franze Claudia, Mikolajczyk Rafael, Mons Ute, Nimptsch Katharina, Obi Nadia, Övermöhle Cara, Peters Annette, Pischon Tobias, Schmidt Börge, Schulze Matthias B, Völzke Henry, Willich Stefan N, Herbolsheimer Florian, Steindorf Karen
Аннотация
OBJECTIVE: To examine how adherence to the World Health Organization's (WHO) physical activity guidelines changes with and without the application of a 10-minute bout requirement.
METHODS: We analysed accelerometry data from the baseline assessment of the German National Cohort, NAKO. Using predefined acceleration thresholds, we classified each participant's volumes of moderate and vigorous intensity physical activity and compared these values with WHO guidelines. We analysed data with and without the 10-minute bout requirement. We used Welch's analysis of variance and equal proportions tests to compare demographic and health characteristics between participants who met the activity guidelines and those who did not.
FINDINGS: Of 63 134 participants, 22 226 (35.2%) met the guidelines with the bout requirement, while 62 532 (99.0%) met the guidelines without it. Participants who met the guidelines under each condition differed in demographic and health-related characteristics. For example, mean age was 48.6 years (SD: 13.0) among participants meeting the guidelines with the bout, 50.8 years (SD: 12.2) among those meeting only the guidelines without the bout and 60.8 years (SD: 10.4) among those meeting neither guidelines. Participants meeting the guidelines with the bout had a lower body mass index (25.2 kg/m2; SD: 4.0) than those meeting only the guidelines without the bout (27.0 kg/m2; SD: 5.1) and those meeting neither guidelines (30.6 kg/m2; SD: 7.1).
CONCLUSION: Removing the 10-minute bout requirement for accelerometry-measured activity volumes substantially increased estimated guideline adherence. The change has implications for interpreting time trends in guideline adherence and alters conclusions about which population subgroups meet the guidelines.
METHODS: We analysed accelerometry data from the baseline assessment of the German National Cohort, NAKO. Using predefined acceleration thresholds, we classified each participant's volumes of moderate and vigorous intensity physical activity and compared these values with WHO guidelines. We analysed data with and without the 10-minute bout requirement. We used Welch's analysis of variance and equal proportions tests to compare demographic and health characteristics between participants who met the activity guidelines and those who did not.
FINDINGS: Of 63 134 participants, 22 226 (35.2%) met the guidelines with the bout requirement, while 62 532 (99.0%) met the guidelines without it. Participants who met the guidelines under each condition differed in demographic and health-related characteristics. For example, mean age was 48.6 years (SD: 13.0) among participants meeting the guidelines with the bout, 50.8 years (SD: 12.2) among those meeting only the guidelines without the bout and 60.8 years (SD: 10.4) among those meeting neither guidelines. Participants meeting the guidelines with the bout had a lower body mass index (25.2 kg/m2; SD: 4.0) than those meeting only the guidelines without the bout (27.0 kg/m2; SD: 5.1) and those meeting neither guidelines (30.6 kg/m2; SD: 7.1).
CONCLUSION: Removing the 10-minute bout requirement for accelerometry-measured activity volumes substantially increased estimated guideline adherence. The change has implications for interpreting time trends in guideline adherence and alters conclusions about which population subgroups meet the guidelines.