Control group

Injured group

n

M ± SD

n

M ± SD

p

Age

272

16.2 ± 0.7

31

16.3 ± 0.6

.747

Years of baseball experience

270

7.7 ± 1.9

31

7.7 ± 2.5

.871

The age of starting baseball

270

8.5 ± 1.8

31

8.6 ± 2.3

.760

Height

272

172.1 ± 5.7

31

170.8 ± 4.5

.193

Weight

269

64.8 ± 7.2

31

62.7 ± 5.4

.120

Shoulder joint external rotation-throwing side

123

120.9 ± 11.7

8

117.5 ± 13.7

.435

Shoulder joint external rotation-not throwing side

123

116.4 ± 11.0

8

119.9 ± 8.0

.387

Shoulder joint internal rotation-throwing side

123

27.3 ± 11.0

8

24.8 ± 9.7

.533

Shoulder joint internal rotation-not throwing side

123

37.7 ± 12.2

8

44.8 ± 10.4

.114

Shoulder joint horizontal adduction-throwing side

122

98.9 ± 7.7

8

94.0 ± 7.8

.082

Shoulder joint horizontal adduction-not throwing side

123

107.4 ± 12.1

8

104.9 ± 3.6

.550

Hip joint external rotation-throwing side

72

59.7 ± 11.6

5

63.6 ± 10.6

.467

Hip joint external rotation-not throwing side

72

60.6 ± 9.8

5

66.8 ± 8.6

.172

Hip joint internal rotation-throwing side

72

33.4 ± 8.8

5

30.0 ± 9.3

.405

Hip joint internal rotation-not throwing side

72

33.1 ± 8.8

5

33.4 ± 10.8

.933

Heal buttock distance-throwing side

72

15.3 ± 4.4

5

13.6 ± 5.2

.419

Heal buttock distance-not throwing side

72

15.2 ± 4.5

5

14.8 ± 3.9

.863

Long seat type body anteflexion

100

45.9 ± 7.5

10

45.0 ± 13.0

.736