Proportion of 135 eligible intensive lifestyle intervention participants who joined optional special campaigns
| Special campaign | Duration | Participants | Comments/outcome |
| Holiday weight maintenance challenge | ~3 months during winter holiday | 56 (41.5%) | 27 of 34 completers maintained or lost weight |
| PROPulsion | 3 months (June–August) | 84 (62.2%) | 68 completers, mean weight change −0.6 kg |
| 90 day self-weighing challenge | 3 months | 74 (54.8%) | 67 completers, mean change: weight +0.07 kg; waist −3.4 cm |
| Rocks and Rolls | 3 months | 43 (31.9%) | Mean weight change: |
| 17 ‘Rockers’ | Rockers +0.3 kg; | ||
| 26 ‘Rollers’ | Rollers −0.4Kg |