Page 210 - Biomedical Engineering and Design Handbook Volume 1, Fundamentals
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HS    FF CTO           MS     HO CHS        TO
                                        3.0
                                                              Total muscle
                                                              Quadriceps          A
                                    Abduction moment   (% BW × Height)  2.0  Gastrocnemius
                                                              TFL
                                                              Hamstrings

                                        1.0



                                        0.0
                                        2.0
                                                            Total ligament        B
                                    Abduction moment   (% BW × Height)  1.0  ACL
                                                            PLC = LCL + PFL
                                        1.5
                                                            Posterior capsule



                                        0.5

                                        0.0
                                          0      10     20     30    40     50     60
                                                          Gait cycle (%)
                                   FIGURE 7.30  Contributions of individual muscles (A) and ligaments (B) to the total
                                   knee abduction moment during normal walking. [Modified from Shelburne et al. (2006).]



                                                                    Medial
                                                                    compartment



                                                  Lateral
                                             compartment


















                                             FIGURE 7.31 Illustration of the individual contact
                                             forces acting at the medial and lateral compartments of
                                             the tibio-femoral joint.

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