visual3d:tutorials:modeling:ior_foot_model
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visual3d:tutorials:modeling:ior_foot_model [2024/06/19 13:40] – removed sgranger | visual3d:tutorials:modeling:ior_foot_model [2024/07/17 15:47] (current) – created sgranger | ||
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+ | ====== IOR Foot Model ====== | ||
+ | |||
+ | This tutorial has been updated to match the naming convention used in the IOR foot paper. The original tutorial can be found [[Visual3D: | ||
+ | **In 2014, updates to the IOR foot model were published. The updated tutorial can be found [[Visual3D: | ||
+ | |||
+ | ==== Sample Data ==== | ||
+ | |||
+ | Sample data can be downloaded [[https:// | ||
+ | |||
+ | Once the zip file has been downloaded, you can find a static C3D and three dynamic trials in the SampleFiles folder. These files will be used to complete the tutorial. | ||
+ | |||
+ | The model, planar angles and joint angles for the right side were defined and plotted in the Leardini_2007_Angles.cmo. Once the left side angles have been defined, the report template will graph both the left and right angles. | ||
+ | |||
+ | ==== Introduction ==== | ||
+ | |||
+ | Visual3D is a general tool capable of implementing many different foot models. | ||
+ | |||
+ | This tutorial focuses on the multi-segment foot model as described in the following article: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | |||
+ | === Multi-Segment Foot Marker Set === | ||
+ | |||
+ | == Foot Targets == | ||
+ | |||
+ | {{: | ||
+ | |||
+ | **CA< | ||
+ | **ST< | ||
+ | **PT< | ||
+ | **TN< | ||
+ | **FMH< | ||
+ | **SMH< | ||
+ | **VMH< | ||
+ | **VMB< | ||
+ | **PM< | ||
+ | **FMB< | ||
+ | **SMB< | ||
+ | \\ | ||
+ | //*// Serge Van Sint Jan describes palpation for the mediolateral borders of this landmark (PM6/PL6), the target should be placed at the midpoint.\\ | ||
+ | //%%**%%// There is no reference for this landmark in Serge Van Sint Jan text, please see the IOR Foot paper for further clarification | ||
+ | |||
+ | == Shank Targets == | ||
+ | |||
+ | |**HF< | ||
+ | |||
+ | **NOTE:** This tutorial follows the naming convention presented in the IOR Foot paper. | ||
+ | |||
+ | ==== Metatarsus (Met) ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | |**1. Create RMET_DIST: | ||
+ | |||
+ | === Segment Definition === | ||
+ | |||
+ | |**1. Create RMet Segment: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Modify the [[Visual3D: | ||
+ | |||
+ | The image to the right (and all other images in this tutorial) show a mediolateral view of the segment coordinate system after it has been modified. | ||
+ | |||
+ | ==== Mid-foot (Mid) ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | |**1. Create RID Joint Center:**\\ \\ < | ||
+ | |||
+ | === Segment Definition === | ||
+ | |||
+ | |**1. Create RMid Segment: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Modify the [[Visual3D: | ||
+ | |||
+ | ==== Calcaneus (Cal) ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | |**1. Create RIC Joint Center:**\\ \\ < | ||
+ | |||
+ | === Segment Definition === | ||
+ | |||
+ | |**1. Create RCal Segment: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Modify the [[Visual3D: | ||
+ | |||
+ | ==== Foot (Foo) ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | |**1. Create RFT_DIST: | ||
+ | |||
+ | === Segment Definition === | ||
+ | |||
+ | |**1. Create Right Foot Segment: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Modify the [[Visual3D: | ||
+ | |||
+ | ==== Shank (Sha) ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | |**1. Create RIM:**\\ \\ < | ||
+ | |||
+ | |**2. Create RSK_PROX: | ||
+ | |||
+ | === Segment Definition === | ||
+ | |||
+ | |**1. Create Right Shank Segment: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Modify the [[Visual3D: | ||
+ | |||
+ | ==== Angles ==== | ||
+ | |||
+ | === Landmarks === | ||
+ | |||
+ | The F2Pt and F2Ps planar angles are calculated as the angle between the lines created by the targets FMB-FMH and FMH-PM. To calculate this angle using the Compute Planar Angle command, an offset along the line between FMB and FMH is created to define the 3 point angle. | ||
+ | |||
+ | |**1. Create RF2P_Offset: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LF2P_Offset: | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | The F2G, S2G and V2G angles are calculated in the plane orthogonal to the ground. These landmarks will need to be projected onto the ground. To project landmarks onto the ground, the Lab_O, Lab_X and Lab_Y landmarks will need to be created to identify the plane of the ground. | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**3. Create Lab_O:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**4. Create Lab_X:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**5. Create Lab_Y:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**6. Create RFMH_proj: | ||
+ | |||
+ | \\ | ||
+ | **Create landmarks 7-17 by following the same format as the RFMH_proj landmark for:** **** | ||
+ | |||
+ | **** | ||
+ | |\\ 7. RFMB\\ 8. RSMH\\ 9. RSMB\\ 10. RVMH\\ 11. RVMB\\ | ||
+ | |||
+ | **** | ||
+ | **** | ||
+ | |||
+ | === Planar Angles === | ||
+ | |||
+ | == F2Pt == | ||
+ | |||
+ | **F2Pt** - the angle between the lines FMH-PM and FMB-FMH projected onto the transverse plane of the metatarsus\\ | ||
+ | **Represents** - valgus of the first metatarsophalangeal joint\\ | ||
+ | |||
+ | |||
+ | |**1. Create RF2Pt planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LF2Pt planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == S2F == | ||
+ | |||
+ | **S2F** - the angle between the lines FMB-FMH and SMB-SMH projected onto the transverse plane of the metatarsus\\ | ||
+ | |||
+ | |||
+ | |**1. Create RS2F planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LS2F planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == S2V == | ||
+ | |||
+ | **S2V** - the angle between the lines VMB-VMH and SMB-SMH projected onto the transverse plane of the metatarsus\\ | ||
+ | |||
+ | |||
+ | |**1. Create RS2V planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LS2V planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == F2G == | ||
+ | |||
+ | **F2G** - the angle between the lines FMB-FMH and the ground, plane orthogonal to the ground (3D angle relative to the ground)\\ | ||
+ | |||
+ | |||
+ | The **FMH_proj** and **FMB_proj** landmarks will be used to calculate the **F2G** planar angle which are described in the [[Visual3D: | ||
+ | |||
+ | |||
+ | |**1. Create RF2G planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LF2G planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == S2G == | ||
+ | |||
+ | **S2G** - the angle between the lines SMB-SMH and the ground, plane orthogonal to the ground (3D angle relative to the ground)\\ | ||
+ | |||
+ | |||
+ | The **SMH_proj** and **SMB_proj** landmarks will be used to calculate the **S2G** planar angle which are described in the [[Visual3D: | ||
+ | |||
+ | |||
+ | |**1. Create RS2G planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LS2G planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == V2G == | ||
+ | |||
+ | **V2G** - the angle between the lines VMB-VMH and the ground, plane orthogonal to the ground (3D angle relative to the ground)\\ | ||
+ | |||
+ | |||
+ | The **VMH_proj** and **VMB_proj** landmarks will be used to calculate the **V2G** planar angle which are described in the [[Visual3D: | ||
+ | |||
+ | |||
+ | |**1. Create RV2G planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LV2G planar angle:**\\ \\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | == F2Ps == | ||
+ | |||
+ | **F2Ps** - the angle between the lines FMH-PM and FMB-FMH projected onto the sagittal plane of the metatarsus\\ | ||
+ | **Represents** - dorsiflexion of the first metatarso-phalangeal joint\\ | ||
+ | |||
+ | |||
+ | |**1. Create RF2Ps planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LF2Ps planar angle:**\\ \\ \\ < | ||
+ | |||
+ | == MLA == | ||
+ | |||
+ | **MLA** - the angle between the lines CA-ST and ST-FMH projected onto the sagittal plane of the foot\\ | ||
+ | **Represents** - navicular drop\\ | ||
+ | |||
+ | |||
+ | |**1. Create RMLA planar angle:**\\ \\ < | ||
+ | |||
+ | \\ | ||
+ | |||
+ | |||
+ | |**2. Create LMLA planar angle:**\\ \\ \\ < | ||
+ | |||
+ | === Joint Angles === | ||
+ | |||
+ | == Sha_Foo_Angle == | ||
+ | |||
+ | |**1. Define the RSha_Foo_Angle: | ||
+ | |||
+ | == Sha_Cal_Angle == | ||
+ | |||
+ | |**1. Define the RSha_Cal_Angle: | ||
+ | |||
+ | == Cal_Mid_Angle == | ||
+ | |||
+ | |**1. Define the RCal_Mid_Angle: | ||
+ | |||
+ | == Mid_Met_Angle == | ||
+ | |||
+ | |**1. Define the RMid_Met_Angle: | ||
+ | |||
+ | == Cal_Met_Angle == | ||
+ | |||
+ | |**1. Define the RCal_Met_Angle: | ||
+ | |||
+ | ==== References ==== | ||
+ | |||
+ | - ↑ < | ||
+ | - ↑ < | ||
+ | |||
+ | |||
+ | |||
visual3d/tutorials/modeling/ior_foot_model.1718804407.txt.gz · Last modified: 2024/06/19 13:40 by sgranger