Effects of Installing Height-Adjustable Standing Desks on Daily and Domain-Specific Duration of Standing, Sitting, and Stepping in 3rd Grade Primary School Children.

Aim of this intervention study was to evaluate whether availability of standing desks in classrooms may reduce sitting time and enhance standing and stepping time during lessons and breaks. Further, we evaluated if differences in standing desk use differed by physical fitness (PF) levels of children. To assess sitting, standing and stepping during a typical school week in 3rd grade primary school children ( = 52), activPAL monitors were used at baseline: T0, 1st follow-up: T1 and 2nd follow-up: T2.