Fig. 2

The Maebashi Early Mobilization Algorithm: a flow chart, PEEP positive end-expiratory pressure, RASS Richmond agitation sedation scale. This is the Maebashi early mobilization protocol algorithm. ICU physicians have to decide the mobilization level according to the algorithm every day. The contents of the mobilization level is as follows: level 1: no mobilization, bed exercise such as passive range of motion and passive transfer to chair; level 2: sitting position in bed, including using cycling ergometer and active range of motion; level 3: sitting on edge of bed; level 4: active transfer to chair; level 5: standing, stepping in place, and ambulating