Feasibility criteria for the randomised controlled trial
| Feasibility | High | Medium | Low | |
| Primary outcome | ||||
| Adherence to RET, % of sessions attended | During GR | >90 | 80–90 | <80 |
| Post-GR | >80 | 70–80 | <70 | |
| Adherence to ONS, n servings/week | During GR | 12–14 | 10–11 | <10 |
| Post-GR | 12–14 | 10–11 | <10 | |
| Dropout rate, % | During GR | <10 | 10–20 | >20 |
| Post-GR | <20 | 20–30 | >30 | |
| Overall feasibility | ||||
| Secondary outcome | ||||
| Participation rate, % eligible patients included | >50 | 25–50 | <25 |
RET, resistance exercise training; GR, geriatric rehabilitation; ONS, oral nutritional supplement