Table 1.
Changes in Physical Activity, Physical Function, and Exercise Self-Efficacy Over Time
| Measure | Baseline M (SD) | End of 6-Month Intervention Period M (SD) | End of 6-Month Follow-Up M (SD) |
|---|---|---|---|
| Performance of LE Exercise1–6 (volume LE exercise per week by diary) | |||
| Intervention | 0 (0) | 289.8 (318.8) | 341.7 (390.8) |
| Control | 51.7 (72.5) | 21.2 (63.7) | 84.3 (137.4) |
| Participation in Fitness Walking6 (minutes walked per week by diary) | |||
| Intervention | 75.2 (84.2) | 95.5 (125.2) | 141.3 (131.4) |
| Control | 76.1 (96.8) | 99.9 (229.2) | 96.4 (152.0) |
| 6-Minute Walk1–3 (yards) | |||
| Intervention | 442.4 (87.2) | 466.1 (101.3) | 480.0 (94.9) |
| Control | 512.8 (105.4) | 504.4 (106.6) | 502.3 (104.3) |
| SPPB2,4–6 | |||
| Intervention | 10.8 (1.9) | 11.6 (1.9) | 11.6 (1.4) |
| Control | 11.3 (1.7) | 11.4 (1.9) | 11.5 (2.2) |
| WOMAC Physical Function | |||
| Intervention | 22.5 (11.6) | 17.3 (13.1) | 18.9 (13.2) |
| Control | 23.6 (11.6) | 22.9 (14.9) | 21.6 (10.3) |
| Exercise Self-Efficacy | |||
| Intervention | 57.8 (22.2) | 63.9 (22.1) | 71.5 (21.2) |
| Control | 60.3 (32.7) | 55.8 (31.1) | 43.6 (34.1) |
Note: LE = lower extremity; SPPB = short physical performance battery; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index;
1
p < .05 for group by time interaction effect;
2
p < .05 for interaction effect improvement from baseline to end of 6-month intervention period;
3
p < .05 for interaction effect improvement from baseline to end of 6-month follow-up;
4
p < .05 for time effect;
5
p < .05 for time effect improvement from baseline to end of 6-month intervention period;
6
p < .05 for time effect improvement from baseline to end of 6-month follow-up.