Table 4 The multilevel mixed-effects linear regression revealed the differing coefficients between groups with higher degrees of motion

Middle deltoid

Abduction

 60° (compare with 30°)

7.7

6.32

–

9.08

< 0.001**

 90° (compare with 30°)

16

14.62

–

17.38

< 0.001**

Horizontal flexion (degrees)

 30° (compare with 0°)

-5.82

-7.2

–

(-4.4)

< 0.001**

 60° (compare with 0°)

-8.68

-10.05

–

(-7.3)

< 0.001**

Supraspinatus

Abduction

 60° (compare with 30°)

6.08

4.87

–

7.28

< 0.001**

 90° (compare with 30°)

11.2

10

–

12.4

< 0.001**

Horizontal flexion

 30° (compare with 0°)

-2.99

-4.1

–

(-1.88)

< 0.001**

 60° (compare with 0°)

-4.84

-5.95

–

(-3.73)

< 0.001**

S:D ratio

Abduction

 60° (compare with 30°)

-0.95

-1.37

–

(-0.53)

< 0.001**

 90° (compare with 30°)

-1.23

-1.65

–

(-0.81)

< 0.001**

Horizontal flexion

 30° (compare with 0°)

0.45

0.06

–

0.85

0.023*

 60° (compare with 0°)

0.86

0.47

–

1.26

< 0.001**