Table 1 Preoperative characteristics of 21 subjects randomized to a postoperative exercise intervention or usual care following primary total hip arthroplasty
Intervention | Control | P-value | |
|---|---|---|---|
(n = 11) | (n = 10) | ||
Demographics | |||
Mean age (SD) | 51.7 (8.3) | 55.9 (9.9) | 0.30 |
Number of females n (%) | 7 (64) | 3 (30) | 0.20 |
Working full time n (%) | 7 (64) | 8 (80) | 0.11 |
Performance-based measures | |||
Strength in pounds of force | |||
Mean hip flexion (SD) | 25.3 (8.5) | 28.6 (7.0) | 0.37 |
Mean hip extension (SD) | 21.3 (7.2) | 28.1 (13.7) | 0.21 |
Mean hip external rotation (SD) | 13.8 (5.0) | 16.8 (5.5) | 0.22 |
Mean hip internal rotation (SD) | 13.1 (3.4) | 16.3 (5.7) | 0.16 |
Mean abduction (SD) | 22.1 (8.3) | 24.5 (6.7) | 0.50 |
Mean six minute walk test in meters (SD) | 402.2 (291.4) | 472.2 (373.0)** | 0.65 |
Self- report measures | |||
WOMAC* | |||
Mean pain score (SD) | 46.0 (12.4) | 55.6 (13.2) | 0.13 |
Mean function score (SD) | 51.0 (14.8) | 55.1 (14.0) | 0.56 |
RAND-36* | |||
Mean physical function score (SD) | 27.8 (13.9) | 40.0 (23.3)** | 0.20 |
Mean physical role score (SD) | 13.9 (25.3) | 43.8 (37.2)** | 0.07 |
Mean bodily pain score (SD) | 26.5 (14.4) | 34.9 (12.9) | 0.22 |
Mean general health appendix score (SD) | 78.3 (16.5) | 79.0 (19.9) | 0.94 |
Mean vitality score (SD) | 48.5 (17.0) | 53.8 (23.3) | 0.59 |
Mean emotional role score (SD) | 63.3 (42.9) | 87.5 (24.8)** | 0.09 |
Mean social function score (SD) | 53.8 (32.3) | 75.0 (14.9)** | 0.16 |
Mean mental health score (SD) | 76.4 (15.8) | 83.0 (11.7) | 0.34 |