Effect sizes of the secondary outcomes of the intervention
| Measure | Phase 1 | Phase 2 | ||||
| F time | F group | F int. | F time | F group | F int. | |
| Physical capacity and activity | ||||||
| 6MWD (m) | 0.10 | 0.05 | 0.61 | 1.00 | 0.11 | 0.20 |
| 6MWD (% predicted) | 0.25 | 0.46 | 0.70 | 1.23 | 0.39 | 0.29 |
| SPPB total score (0–12) | 0.05 | 0.03 | 0.00 | 0.30 | 0.96 | 1.48 |
| Sedentary time (h·day−1) | 0.00 | 1.16 | 1.17 | 1.24 | 2.74 | 0.80 |
| Standing time (h·day−1) | 0.60 | 0.10 | 0.07 | 0.07 | 0.07 | 0.10 |
| Stepping time (h·day−1) | 0.35 | 1.04 | 0.03 | 0.19 | 1.14 | 2.01 |
| Sedentary breaks (number·day−1) | 9.14** | 0.43 | 0.50 | 0.05 | 2.17 | 0.18 |
| Sedentary bouts (>30 min) (number·day−1) | 0.42 | 1.29 | 0.03 | 0.99 | 2.21 | 0.99 |
| High-intensity PA | 2.45 | 0.20 | 0.12 | 0.26 | 0.64 | 0.11 |
| Dietary quality | ||||||
| AHEI-2010 | 5.04* | 0.11 | 0.26 | 1.87 | 0.31 | 0.00 |
| Cognitive stress susceptibility and perception | ||||||
| AUC (CAR) (arbitrary units) | 0.02 | 0.14 | 0.74 | — | — | — |
| Delta (SECPT) (μmol·L−1) | 6.05* | 0.08 | 0.14 | 0.93 | 1.46 | 4.19* |
| Perceived Stress Scale | 0.52 | 2.41 | 0.10 | 2.55 | 2.27 | 1.05 |
| Healthy lifestyle goal recall | ||||||
| Procedure recall (0–4) | — | — | — | 0.00 | 1.63 | 1.02 |
| Content recall (0–2) | — | — | — | 3.16 | 2.14 | 0.15 |
All data expressed as F-values. 6MWD: 6-min walk distance; SPPB: Short Physical Performance Battery; PA: physical activity; AHEI: Alternative Healthy Eating Index; AUC: area under the curve; CAR: cortisol awakening response; SECPT: socially evaluated cold pressor test; —: not taken. *p<0.05. **p<0.01.