History of the study
The plan of the study is a cohort sequence design where more cohorts are repeatedly observed at the same age. In addition to the longitudinal observation of the participants of the MoMo Baseline Study, there is a representative cross-sectional accumulation for every cohort in the age range between 4 and 17 years (see picture). This helps to minimise the validity threats of pure cross-sectional and pure longitudinal designs.
From 2003–2006, data on physical fitness and physical activity of 4,528 children and adolescents between the ages of 4–17 years across German were collected. Participants were recruited from the KiGGS population allowing for future analyses not only of data collected as part of the ‘Motorik-Modul’ but also their relationship to biomedical and psychosocial data collected as part of KiGGS.
MoMo includes a longitudinal sample as well as four cross-sectional samples. The first follow-up survey began in 2009 and ended in 2014 (MoMo wave 1). In this period 5,106 subjects had been tested. Out of this pool 2,807 participants where already part of the MoMo Baseline Study. This longitudinal sample was supplemented with participants aged 4 to 17 years. The purpose of the accumulation is to enhance the representativeness of the data for children and adolescents in this age group.
Since 2015 (until 2021) MoMo is continued under the supervision of Professor Dr. Alexander Woll of the Karlsruhe Institute of Technology in cooperation with Professor Dr. Annette Worth of the University of Education Karlsruhe and the Robert Koch-Institute in Berlin.