*2.2. Data Collection*

The primary school in the community reported on here conducted the testing annually in October, except in 2020, when testing was limited due to the COVID-19 lockdown. Therefore, the 2020 tests were conducted in December. The teachers and volunteers were trained as multipliers using manuals, test material, and additional support and to execute

the test tools. On a testing day, each child was tested in the school, sorted according to class. Parents provided informed consent forms through the primary school that conducted the testing. With informed consent, the test results were entered into the evaluation software and any personalized raw data on children's physical fitness were pseudonymized initially and checked for quality. The data set regarding this community was retrieved from the total data set using postal code as variable of allocation. The extracted data were then analyzed in a separate dataset.

**Table 1.** Test items of the IPPTP-R.

