Skip to main content

Table 4 The mean, SD and range values of the angles

From: Photographic measurement of upper-body sitting posture of high school students: A reliability and validity study

Angles

Normal

Upright

Slouched

 

Mean

SD

Range (degrees)

Mean

SD

Range (degrees)

Mean

SD

Range (degrees)

Sagittal head angle

20.05

7.84

0 – 34.70

19.99

8.15

0.90 – 34.40

10.28

10.68

(-)15.90 – 34.20

Cervical angle

47.66

9.75

21.90 – 62.90

52.72

11.18

22.30 – 71.30

21.49

27.57

(-)34.10 – 53.40

Protraction/retraction angle

130.21

25.77

65.30 – 178.70

124.76

20.36

76.50 – 159.80

145.68

20.62

103.70 – 208.70

Thoracic angle

63.25

8.57

49.50 – 89.20

61.37

11.76

40.80 – 97.60

61.46

8.88

39.30 – 78.10

Arm angle

23.46

12.75

(-)5.00 – 50.30

24.21

12.09

3.30 – 60.90

32.72

10.34

14.50 – 48.80