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Table 2 Average asymmetry factor (AAF) under various moments and preloads

From: Biomechanical response of lumbar facet joints under follower preload: a finite element study

 

Flexion

Extension

Bending(ipsilateral)

Bending(contralateral)

Torsion(contralateral)

CF

CA

MCP

CF

CA

MCP

CF

CA

MCP

CF

CA

MCP

CF

CA

MCP

0

110.0

169.9

28.5

15.5

24.2

37.7

259.9

223.4

577.5

46.6

43.1

84.1

1.4

3.1

3.6

500

56.7

93.7

23.6

12.4

33.3

45.9

438.4

423.6

799.2

51.4

53.6

83.4

2.5

6.3

5.0

800

45.2

76.7

21.7

12.3

28.1

41.8

433.9

422.4

831.8

52.7

50.9

74.9

3.4

6.2

5.8

1200

34.2

39.9

4.2

10.3

26.1

37.4

385.8

313.4

810.7

52.1

32.5

56.1

5.0

7.2

8.6

  1. (CF: contact force; CA: contact area; MCP: mean contact pressure)