Table 2.
Changes from baseline in secondary outcomes after the exercise program (13 weeks) and after 26 weeks Analyses were based on the Intention to Treat Population.”
| 13 weeks | 26 weeks | |||||||
|---|---|---|---|---|---|---|---|---|
| Painful shoulder | Interv. (n = 49) | Cont. (n = 50) | Group difference | P | Interv. (n = 49) | Cont. (n = 50) | Group difference | P |
| Mean (SE) | Mean (SE) | Mean (95 % CI) | Mean (SE) | Mean (SE) | Mean (95 % CI) | |||
| Ultrasound variables | ||||||||
| Bursa size decrease (mm) | –0.16 (0.08) | –0.30 (0.08) | 0.14 (–0.10 to 0.37 | 0.25 | –0.16 (0.08) | –0.04 (0.08) | –0.13 (–0.36 to 0.10) | 0.27 |
| Number of positive US Impingement (positive baseline) | 9 (18 %)a
(16 (34 %)) |
19 (38 %)a
(25(50 %)) |
–0.20 (–0.02 to –0.37)b | 0.030c | 14 (29 %)a
(16 (34 %)) |
23 (46 %)a
(25(50 %)) |
–0.17 (–0.36 to 0.01)b | 0.073c |
| Positive clinical impingement (positive baseline) | 38 (78 %)a
(45 (92 %)) |
42 (84.%)a
(45 (90 %)) |
–0.06 (–0.22 to 0.09)b | 0.42c | 40 (82 %)a
(45 (92 %)) |
47 (94 %)a
(45 (90 %)) |
–0.12 (–0.25 to 0.00)b | 0.059c |
| Shoulder Disability Questionnaire | ||||||||
| Decrease (percentage) in difficulty performing shoulder task (0–100 %) | –26 (4) | –22 (4) | –4 (–16 to 7) | 0.44 | –18 (4 %) | –16 (4) | –2 (–13 to 10) | 0.73 |
| Muscle strength | ||||||||
| MVC abduction (n) | 4.6 (2.5) | 3.7 (2.5) | 0.9 (–6.2 to 7.9) | 0.80 | 0.5 (2.4) | 1.4 (2.4) | –0.9 (–7.5 to 5.7) | 0.80 |
| MVC internal rotation (n) | 0.8 (3.2) | 3.6 (3.1) | –2.8 (–11.6 to 5.9) | 0.52 | 0.1 (3.1) | –1.5 (3.1) | 1.6 (–7.2 to 10.3) | 0.71 |
| MVC external rotation (n) | 7.0 (2.4) | 5.8 (2.4) | 1.2 (–5.6 to 8.0) | 0.72 | –1.5 (2.2) | 2.5 (2.2) | –4.1 (–10.2 to 2.1) | 0.20 |
Analyses were based on the intention-to-treat population. Intervent. intervention group, Cont. control group, SE standard error, CI confidence interval, US ultrasound, MVC maximal voluntary contraction. aData are number of participants (%). bData are risk differences (95 % CI). cBased on the Chi2 test of proportions