Table 2.
Feasibility of process, outcomes, resources, and acceptability
| Category | Metric | Value | Criterion for success |
|---|---|---|---|
| Feasibility of the processes and study design | Enrollment to screening ratio | 25:103 | ≥ 2:11 |
| Recruitment time | 8 weeks | ≤ 20 weeks | |
| Recruitment rate (participants/month) | 25 | ≥ 5 participants/month | |
| Retention rate (%) | 42/50 (84.00%) | > 70% | |
| Refusal rate (%) | 83/206 (40.29%) | < 70% | |
| Eligibility criteria rate (%) | 193/206 (93.69%) | > 70% | |
| Feasibility of the outcome measures | Safety (adverse events) | 0 | 0 |
|
Acceptance of virtual assessment method (% completed) |
100% | > 70% | |
|
Duration of assessment (Avg time) |
41 min | ≤ 60 min | |
| Interpretability: 5xSTS | Continuous; range: 7–25 | N/A | |
| Continuous; range: 8–38 | |||
| Interpretability: Short FES-I |
Baseline ceiling: 0/46 (0%) Baseline floor: 0/46 (0%) Baseline range: 7–19 total score |
< 15% floor/ceiling effects | |
|
Follow-up ceiling: 0/42 (0%) Follow-up floor: 0/42 (0%) Follow-up range: 7–23 total score | |||
| Interpretability: ABC-6 |
Baseline ceiling: 1/45 (2.22%) Baseline floor: 1/45 (2.22%) Baseline range: 0–100 total score |
< 15% floor/ceiling effects | |
|
Follow-up ceiling: 0/42 (0%) Follow-up floor: 0/42 (0%) Follow-up range: 3–99 total score | |||
| Interpretability: Fit-Frailty Score |
Baseline ceiling: 0/46 (0%) Baseline floor: 0/46 (0%) Baseline range: 0.08–0.49 total score |
< 15% floor/ceiling effects | |
|
Follow-up ceiling: 0/42 (0%) Follow-up floor: 0/42 (0%) Follow-up range: 0.07–0.46 total score | |||
| Interpretability: Telephone MOCA |
Baseline ceiling: 1/46 (2%) Baseline floor: 0/46 (0%) Baseline range: 10–22 total score |
< 15% floor/ceiling effects | |
|
Follow-up ceiling: 0/42 (0%) Follow-up floor: 0/42 (0%) Follow-up range: 6–16 total score | |||
| Interpretability: DASS-21 |
Baseline ceiling: 0/46 (0%) Baseline floor: 1/46 (2.17%) Baseline range: 0–98 total score |
< 15% floor/ceiling effects | |
|
Follow-up ceiling: 0/42 (0%) Follow-up floor: 3/42 (7%) Follow-up range: 0–84 total score | |||
| Completeness: 5xSTS | 44/46 baseline completed (95.6%) | > 70% | |
| 40/42 follow-up completed (95.2%) | |||
| Completeness: Short FES-I | 46/46 baseline completed (100%) | > 70% | |
| 42/42 follow-up completed (100%) | |||
| Completeness: ABC-6 | 45/46 baseline completed (97.8%) | > 70% | |
| 42/42 follow-up completed (100%) | |||
| Completeness: Fit-Frailty | 46/46 baseline completed (100%) | > 70% | |
| 42/42 follow-up completed (100%) | |||
| Completeness: Telephone MOCA | 46/46 baseline completed (100%) | > 70% | |
| 42/42 follow-up completed (100%) | |||
| Completeness: DASS-21 | 43/46 baseline completed (93.5%) | > 70% | |
| 42/42 follow-up completed (100%) | |||
| Resources | Equipment Support (%) | 6/50 (12.00%) | < 15% |
| feasibility and acceptability of the virtual GERAS DANCE Intervention | Safety (adverse events) | 1 unrelated | 0 |
| Adherence (% class attendance) | 77.72% | ≥ 65% | |
| Fidelity | High | High | |
| Enjoyment rating (%) | 90% rated good to excellent | > 80% | |
| Class duration | 1-h class | 1-h class | |
| Frequency | 2 × weekly (6 weeks) | 2 × weekly (6 weeks) | |
| Intensity–just right challenge | 13/14 (92.86%) | > 80% |
5xSTS Five Times Sit-to-Stand Test, FES-I Falls Efficacy Scale-International (Short Version), ABC-6 Activities-specific Balance Confidence Scale (6-item version), Fit-Frailty Score Frailty Index, MOCA Montreal Cognitive Assessment (Telephone Version), DASS-21 Depression Anxiety Stress Scales (21-item version)