Table 1.
Baseline characteristics for all randomized patients
| Intervention (n = 49) Mean (SD) |
Control (n = 50) Mean (SD) |
Combined (n = 99) Mean (SD) |
Min | Max | |
|---|---|---|---|---|---|
| Age (years) | 49.4 (13.1) | 47.7 (13.3) | 48.5 (13.1) | 18.1 | 69.1 |
| Female, n | 30 (61 %)b | 28 (56 %)b | 58 (59 %)b | - | - |
| Pain rest, mm VAS | 5 (0 to 24)a | 11 (0 to 30)a | 7 (0 to 29)a | 0 | 77 |
| Pain activity, mm VAS | 38 (19 to 60)a | 48 (25 to 62)a | 45 (23 to 62)a | 0 | 100 |
| Ultrasound variables | |||||
| Clinical impingement, yes | 45 (92 %)b | 45 (90 %)b | 90 (91 %)b | - | - |
| Ultrasound impingement, yes | 16 (34 %)b | 25 (50 %)b | 41 (42 %)b | - | - |
| Bursa thickness, mm | 2.63 (0.59) | 2.74 (0.82) | 2.68 (0.71) | 1.6 | 5.4 |
| Shoulder Disability Questionnaire | |||||
| Percentage score in difficulty performing shoulder task, 0–100 % | 65.9 (24.8) | 68.4 (20.8) | 67.1 (22.8) | 9.1 | 100 |
| Muscle strength | |||||
| MVC abduction, N | 70.4 (48.4 to 103.0)a | 63.8 (44.0 to 85.8)a | 67.1 (46.2 to 94.6)a | 24.2 | 209.0 |
| MVC internal rotation, N | 138.0 (110.0 to 184.0)a | 118.0 (81.4to 167.0)a | 126.0 (99.0 to 171.0)a | 41.8 | 325.0 |
| MVC external rotation, N | 112.0 (85.8 to 136.0)a | 99.0 (81.4to 129.0)a | 104.0 (81.4 to 134.0)a | 39.6 | 193.0 |
Data are presented as mean (SD) except where stated otherwise. VAS visual analog scale, MVC maximal voluntary contraction. aData are median (interquartile range). bData are number of participants (%)