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. 2023 Jun 29;6(3):e1269. doi: 10.1002/jsp2.1269

FIGURE 9.

FIGURE 9

Effect of material on model results. (A) The first principal strain and (C) stress within the left C4–C5 FCL in axial rotation for hybrid and neo‐Hookean (NH) material model when the head is in end range to left (see part figure A in Figure 4). (b) The percent difference of the first principal strain and (D) first principal stress between the hybrid and NH material model shown in (A) and (C), respectively. Average first principal (E) strain and (G) stress within the left C4–C5 FCL in different motions for hybrid and NH material model. The percent of difference of the (F) first principal strain and (H) stress between the hybrid and NH material model shown in (E) and (G), respectively. The square‐, circle‐, and diamond‐shaped markers in these images represent the exact values for first, second, and third trials, respectively. AR, axial rotation; F‐E, flexion–extension; LB, lateral bending.