TABLE 3.
Mean (SD) strain, expressed in percent change in length relative to original length, for the 3 conditions and 5 simulated clinical tests.
| Middle Region | Lower Region | ||
|---|---|---|---|
| Conditions | Simulated Clinical Tests | Mean (SD) | Mean (SD) |
| Muscle# | 22 (35)* | 33 (44) | |
| Baseline# | 77 (45)* | 53 (47) | |
| Contracted# | 87 (55)* | 75 (65) | |
| GH Neutral& | 59 (46) | 66 (62)†† | |
| 60 ABD& | 46 (53)† | 64 (61)†† | |
| Cross-body Adduction& | 58 (49) | 28 (31)†† | |
| 60 Flexion& | 70 (57) | 57 (57) | |
| 40 Flexion& | 77 (61)† | 53 (54) | |
| Muscle | GH Neutral | 16 (24) | 43 (69) |
| 60 ABD | 20 (37) | 29 (44) | |
| Cross-body Adduction | 31 (55) | 27 (32) | |
| 60 Flexion | 23 (33) | 34 (38) | |
| 40 Flexion | 18 (22) | 31 (35) | |
| Baseline | GH Neutral | 70 (32) | 69 (49) |
| 60 ABD | 75 (66) | 74 (62) | |
| Cross-body Adduction | 69 (27) | 30 (35) | |
| 60 Flexion | 81 (59) | 45 (45) | |
| 40 Flexion | 89 (37) | 46 (33) | |
| Contracted | GH Neutral | 91 (42) | 85 (67) |
| 60 ABD | 42 (43)‡ | 89 (63) | |
| Cross-body Adduction | 73 (55) | 27 (30) | |
| 60 Flexion | 105 (43)‡ | 93 (72) | |
| 40 Flexion | 125 (60)‡ | 81 (76) |
Abbreviations: GH, glenohumeral.
#
Indicates Condition data is collapsed across the 5 simulated clinical tests.
&
Indicates Test data is collapsed across the 3 conditions.
*
Baseline and Contracted conditions significantly higher than Muscle condition.
†
40 Flexion test significantly higher than 60 ABD test.
††
GH Neutral and 60 ABD tests significantly higher than Cross-body Adduction test.
‡
60 Flexion and 40 Flexion tests significantly higher than 60 ABD test in the contracted condition.