| adj_position | Adjust Marker Positions Towards Center |
| calculate_volumes | Calculate Segment Volumes Over Time |
| plot_2d_volume | Plot Volume Changes by Segment Over Time |
| plot_chest_3d | Plot 3D Chest Markers with Highlighted Segment and Convex Hull |
| process_marker_data | Deprecated: Process Marker Data |
| read_segment_definitions | Read Segment Definitions from Excel File |
| reformat_marker_data | reformat and Sort Marker Data for All Time Frames |
| sample_data | Sample 3D Motion Capture Data for Chest Expansion Analysis |
| Segment_example | Example Chest Segment Definition |