Table 2 Intra-observer error (observer 2) on SAs estimates among female adolescent soccer players (n = 100)

Radius

15.6 ± 1.2

15.5 ± 1.2

90

90%

10

1

9

Ulna

16.0 ± 1.1

16.0 ± 1.1

94

94%

6

6

Capitate

12.9 ± 0.3

13.0 ± 1.2

96

96%

4

4

Hamate

12.9 ± 0.5

13.0 ± 0.4

96

96%

4

4

Triquetral

13.0 ± 0.2

13.0 ± 0.1

96

96%

4

4

Pisiform

–

–

100

100%

Lunate

12.9 ± 0.4

13.0 ± 0.2

91

91%

9

9

Scaphoid

12.7 ± 0.6

12.8 ± 0.5

93

93%

7

7

Trapezium

12.8 ± 0.6

12.8 ± 0.5

96

96%

4

1

3

Trapezoid

12.9 ± 0.3

13.0 ± 0.1

96

96%

4

4

Adductor Sesamoid

–

–

100

100%

Metacarpal I

14.9 ± 0.4

14.9 ± 0.4

92

92%

8

1

7

Metacarpal II

14.7 ± 0.6

14.6 ± 0.4

91

91%

9

2

7

Metacarpal III

14.6 ± 0.6

14.6 ± 0.6

95

95%

5

3

2

Metacarpal IV

14.6 ± 0.6

14.6 ± 0.6

96

96%

4

4

Metacarpal V

14.6 ± 0.7

14.6 ± 0.6

94

94%

6

3

3

Proximal phalange I

14.4 ± 0.7

14.4 ± 0.6

88

88%

12

7

5

Proximal phalange II

14.8 ± 0.6

14.8 ± 0.6

98

98%

2

1

1

Proximal phalange III

14.7 ± 0.7

14.8 ± 0.6

98

98%

2

2

Proximal phalange IV

14.7 ± 0.7

14.8 ± 0.6

96

96%

4

4

Proximal phalange V

14.7 ± 0.6

14.8 ± 0.6

96

96%

4

4

Medial phalange II

14.8 ± 0.6

14.8 ± 0.6

98

98%

2

2

Medial phalange III

14.8 ± 0.6

14.7 ± 0.6

96

96%

4

4

Medial phalange IV

14.8 ± 0.5

14.8 ± 0.5

94

94%

6

3

3

Medial phalange V

14.8 ± 0.5

14.8 ± 0.5

98

98%

2

1

1

Distal phalange I

14.3 ± 0.5

14.3 ± 0.6

94

94%

6

6

Distal phalange II

14.3 ± 0.5

14.3 ± 0.5

100

100%

Distal phalange III

14.3 ± 0.5

14.3 ± 0.5

93

93%

7

4

3

Distal phalange IV

14.3 ± 0.5

14.3 ± 0.6

96

96%

4

4

Distal phalange V

14.3 ± 0.5

14.3 ± 0.6

95

95%

5

3

2

Total disagreements

2856

144

1

88

55

%

95.2%

4.8%

1%

61.1%

23.3%