Figure 1.

Frontal (a) and side view (b) of the bone and muscle geometries (iliacus: purple, psoas: green, gluteus maximus: cyan, gluteus medius: red) used for creating the musculoskeletal models. The straight-lines muscle representations and the segmented muscle surface meshes are shown together for comparison. The model with highly discretised muscle representations is shown on the right. All muscles were discretised using 100 fibres, each one consisting of a 15 line-segments polyline. Please note that although the gluteus maximus surface does not touch the femur, its insertion area lies on the bone.