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Table 2

Summary of pressure decreases (kPa) for all DCs.

Contact locationDC1, N = 7DC2, N = 4DC3, N = 2DC4, N = 3
MeanSDMeanSDMeanSDMeanSD
Neutral traction
C5
 C4-C5 76.8 67.6 118.6 138.3 64.8 52.0 70.6
 C5-C6 75.3 52.2 53.0 44.6 50.5 100.1 31.4
 C6-C7 67.7 47.6 47.2 23.1 27.9 83.2 5.1
 C7-T1 39.1 47.8 0.1 66.9 16.5 62.7 2.7
C6
 C4-C5 70.5 68.7 118.5 103.5 74.9 32.3 104.0 90.8
 C5-C6 63.4 51.4 44.9 25.1 19.2 27.1 81.6 79.1
 C6-C7 63.7 38.9 47.2 49.9 30.7 17.0 93.7 4.6
 C7-T1 11.2 64.517.578.930.272.10.995.7

Fixed flexion and traction
C5
 C4-C5 46.5 52.4 91.6 131.3 13.3 4.7 9.5
 C5-C6 41.9 33.3 31.9 48.6 27.3 48.7 44.5
 C6-C7 54.9 34.8 35.7 36.6 8.9 51.2 61.0
 C7-T1 10.5 53.4 14.6 42.7 10.7 69.2 47.4
C6
 C4-C5 54.8 65.8 97.0 102.5 28.7 12.1 2.3 65.1
 C5-C6 48.7 38.9 20.0 23.1 10.2 14.5 47.6 41.5
 C6-C7 59.8 34.9 12.8 76.6 23.3 19.1 42.0 23.7
 C7-T17.069.031.863.823.456.222.551.6

Moving flexion and traction
C5
 C4-C5 82.8 56.1 112.5 150.2 92.8 36.2 60.8
 C5-C6 68.1 65.1 41.4 46.8 75.2 91.2 21.5
 C6-C7 84.9 64.5 38.9 38.1 37.3 79.9 25.8
 C7-T1 41.5 55.3 20.4 55.9 35.7 57.6 27.6
C6
 C4-C5 86.2 49.3 168.7 211.1 114.7 47.4 118.7 116.9
 C5-C6 65.8 55.5 55.1 48.7 31.8 45.0 87.0 82.8
 C6-C7 94.3 64.0 33.0 16.1 64.0 56.7 70.4 53.0
 C7-T1 26.4 52.258.170.921.562.719.263.2

Generalized traction
C4-C5 43.0 72.5 118.6 143.9 94.9 1.9 51.0 55.4
C5-C6 58.6 67.9 85.7 106.3 48.6 68.8 98.4 88.6
C6-C7 53.1 33.7 60.5 59.0 30.9 16.1 146.1 30.8
C7-T129.480.915.368.016.613.9

Generalized traction fixed flexion
C4-C5 66.0 83.3 51.7 77.0 34.2 31.4 23.0 46.3
C5-C6 38.6 59.8 45.1 70.1 15.2 21.7 50.6 49.3
C6-C7 73.6 82.5 67.1 68.9 69.8 81.1 103.2 60.9
C7-T123.750.6 0.2 68.08.16.3 11.9 46.1

Note that, for DC3, one of the specimens he tested did not have C5 as a contact location; therefore, no SD could be calculated, negative numbers represent increases in IDP.

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