Participant recruitment and flow
127 persons were included in the study. Baseline measurements were completed by 118 participants and T1 assessment by 96 participants (see flow chart Fig.As the SiFAr program ended in December 2022, T2 could only be conducted for participants enrolled in 2020 and 2021. From the originally 77 possible participants for T2, the assessment was completed by 63 participants (aCG = 35; IG = 28). Nine participants allocated to IG (lost-to-follow-up = 1, health problems = 6, dropout = 2) and five participants allocated to aCG (health problems = 5) did not complete T2 measurement.