Missing data
An intention to treat approach was used to avoid overestimation of intervention effects on PA and QOL. The “last observation carried forward” approach was used. For the three participants with missing data at T1 and T2, the value from the last completed assessment (baseline) was carried forward or imputed. Where self-reported data were incomplete (i.e., one or more survey items were missing from a scale), the mean of the other items in the scale (or subscale) was imputed.