Sample size estimation and justification
dementia
As this was a feasibility study, we aimed to recruit 12 participants for each group. This was based on the available number of residents at Leith Park residential aged-care facility, with an estimation that approximately 37–40 residents living with dementia were at the facility at the time of study design. A targeted total number of 24 participants (20 participants completing the study allowing for ~ 15% drop out rate) seemed feasible to allow completion of the trial over the 24-week period. Our previous trial had 11% drop out from the exercise intervention group [