Rehabilitation Research and Practice / 2012 / Article / Tab 2 / Clinical Study
Electromyographical Comparison of Four Common Shoulder Exercises in Unstable and Stable Shoulders Table 2 Prone horizontal abduction descriptive analysis with mean (Mn) and standard deviation (SD) values were reported to be divided into six
arcs. The results of each Kruskal-Wallis test are presented at the end of each column for the respective muscle and arc.
0–
30–
60–
90–
60–
30–
Mn Sd Mn Sd Mn Sd Mn Sd Mn Sd Mn Sd Supraspinatus Healthy 15 (9) 32 (17) 48 (18) 32 (13) 16 (10) 7 (6) GL 31 (19) 59 (31) 74 (30) 49 (20) 31 (15) 14 (9) MDI 20 (14) 39 (22) 52 (27) 33 (16) 20 (11) 7 (9) AI 16 (10) 32 (15) 45 (16) 27 (10) 18 (11) 6 (5)
= 0.13 0.11 0.08 0.06 0.11 0.12 Infraspinatus Healthy 19 (7) 32 (12) 36 (10) 26 (7) 20 (9) 11 (5) GL 29 (12) 48 (14) 68 (21) 50 (18) 32 (10) 17 (7) MDI 20 (15) 38 (24) 57 (42) 39 (25) 23 (13) 12 (13) AI 18 (9) 30 (18) 33 (16) 24 (7) 21 (11) 11 (6)
= 0.09 0.04* 0.006* 0.003* 0.06 0.16 Teres major Healthy 8 (8) 15 (12) 18 (15) 13 (10) 9 (8) 7 (6) GL 6 (9) 16 (24) 27 (44) 27 (50) 14 (22) 10 (20) MDI 2 (2) 2 (3) 5 (4) 5 (4) 3 (3) 2 (3) AI 3 (3) 6 (4) 10 (8) 8 (8) 6 (3) 3 (2)
= 0.28 0.04* 0.23 0.43 0.43 0.23 Middle deltoid Healthy 11 (6) 26 (10) 46 (20) 33 (15) 15 (7) 8 (4) GL 11 (5) 26 (14) 43 (28) 28 (17) 16 (7) 10 (5) MDI 9 (6) 25 (14) 38 (6) 25 (6) 17 10 10 (7) AI 12 (5) 32 (16) 53 (25) 32 (12) 21 (9) 11 (4)
= 0.55 0.6 0.66 0.6 0.56 0.45 Upper trapezius Healthy 4 (4) 11 (8) 23 (18) 16 (10) 7 (5) 3 (2) GL 7 (3) 14 (6) 19 (9) 14 (11) 10 (7) 6 (6) MDI 6 (9) 11 (19) 11 (11) 6 (7) 8 (15) 5 8 AI 4 (3) 10 (6) 22 (13) 14 (10) 8 (6) 5 (3)
= 0.16 0.16 0.13 0.16 0.28 0.36 Serratus anterior Healthy 4 (7) 6 (9) 7 (13) 4 (5) 3 (5) 3 (4) GL 4 (5) 6 (6) 11 (8) 8 (5) 6 (5) 2 (3) MDI 2 (3) 4 (5) 6 (10) 4 (6) 2 (3) 2 (3) AI 2 (3) 3 (4) 5 (6) 3 (3) 3 (3) 2 (3)
= 0.73 0.4 0.09 0.06 0.14 0.89
* Indicates significant difference between groups.