Table 3.
Changes in Physical Functioning and Patient-Rated Outcomes Following the Intervention.
| Vibration Group (Mean ±
SD) |
Control Group (Mean ±
SD) |
Adjusted Group Difference in Mean Changea |
||||
|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | Mean (95% CI) | P | |
| Physical function | ||||||
| Leg press 1RM, kg, median (IQR) | 65.0 (48.8) | 71.3 (46.2) | 63.0 (50.0) | 65.2 (47.9) | 3.5 (0.0, 10.0) | .140b |
| Chest press 1RM, kg,c median (IQR) | 22.5 (12.5) | 23.8 (11.3) | 17.5 (12.5) | 25.0 (11.9) | 0.0 (0.0, 2.5) | .402b |
| Seated row press 1RM, kg,c median (IQR) | 45.0 (7.9) | 46.2 (5.0) | 42.8 (11.2) | 45.0 (15.7) | 0.0 (0.0, 2.9) | .347b |
| 400-m walk, s | 264.1 ± 31.0 | 256.3 ± 33.8 | 273.5 ± 41.2 | 269.0 ± 36.3 | −5.0 (–20.5, 10.5) | .514 |
| Chair rise, reps | 11.2 ± 2.3 | 11.0 ± 1.6 | 11.4 ± 2.6 | 10.5 ± 2.5 | 0.65 (–0.59, 1.88) | .292 |
| Stair climb, s | 5.2 ± 1.46 | 5.30 ± 1.70 | 5.88 ± 2.20 | 5.09 ± 1.69 | 1.04 (–0.42, 2.49) | .154 |
| 6-m walk usual pace, s | 4.60 ± 0.49 | 4.39 ±0.0.41 | 4.56 ± 0.71 | 4.47 ± 0.54 | 0.65 (–0.59, 1.88) | .292 |
| 6-m walk fast pace, s | 3.35 ± 0.32 | 3.36 ± 0.36 | 3.33 ± 0.58 | 3.44 ± 0.46 | −1.46 (–0.35, 0.60) | .158 |
| 6-m backward walk, s | 18.56 ±4.69 | 16.9 ± 4.34 | 17.3 ± 6.55 | 16.1 ± 6.2 | −0.94 (–3.80, 1.91) | .503 |
| Balance | 80.0 ± 6.9 | 77.8 ± 6.7 | 75.8 ± 6.8 | 77.3 ± 6.9 | 3.04 (–7.56, 1.53) | .185 |
| Patient-rated outcomes | ||||||
| WOMAC Pain, median (IQR) | 0.0 (1.0) | 0.0 (3.3) | 1.0 (6.8) | 2.0 (6.8) | 0.0 (0.0, 1.0) | .334b |
| WOMAC Stiffness, median (IQR) | 0.0 (1.3) | 1.0 (2.0) | 2.0 (3.0) | 2.5 (3.8) | 0.0 (0.0, 1.0) | .224b |
| WOMAC Difficulty, median (IQR) | 0.5 (5.5) | 2.5 (8.5) | 7.0 (20.0) | 6.0 (19.8) | 0.0 (0.0, 3.0) | .063b |
| WOMAC Total, median (IQR) | 1.0 (7.3) | 4.5 (13.8) | 9.0 (27.0) | 9.5 (30.0) | 0.0 (–1.0, 4.3) | .051b |
| Fatigued | 13.1 ± 6.4 | 11.6 ± 4.4 | 13.4 ± 8.8 | 14.2 ± 7.9 | −2.9 (–6.2, 0.4) | .079 |
Abbreviations: 1RM, one repetition maximum; IQR, interquartile range; WOMAC, Western Ontario and McMaster Universities Arthritis Index (higher scores indicate worse symptoms).
a
Adjusted for baseline value and time on aromatase inhibitor at baseline.
b
Mann-Whitney test.
c
n = 28 due to inability to complete upper body strength measures.
d
Fatigue was assessed by the Functional Assessment of Cancer Therapy–Fatigue subscale (higher scores indicate greater fatigue).