Kinematics raw data of treadmill walking, running and gait transitions at different speed

The data is stored as a hierarchical JSON file for ease of parsing, analysis, and expansion. --- 📐 Structure The data is organized in four hierarchical levels: Subject ID → Trial Number → Kinematic Variables (markers 3D position) Where: Each trial contains a cycle at variable speed, with walking and running legs. A customized ascent and descent speed ramp was designed, centred on the individual transition speed (Ts), with other 4 steps: Ts -20%, -10% and Ts +10%, +20%, lasting 5 s each step.

The complete ramp cycle lasted 50 s. Individual Ts (km/h) where: 6.0: Participant IDs: 16, 24 6.5: Participant IDs: 02, 11, 12, 22, 28 7.0: Participant IDs: 04, 06, 07, 13, 17, 21, 23, 26 7.5: Participant IDs: 03, 08, 09, 10, 15, 18, 19, 20, 25 8.0: Participant IDs: 05, 14 Each trial entry contains a dictionary of 55 sampled variables over time: Frame is an index var - The following variables are grouped by three, and named as right or left (R, L) + the name of the body marker + the axis (e.g. RLOBx, RLOBy, RLOBz, for a total of 9 anatomical positions and 18 markers).

LOB = Temporal lobe SH = Acromion ELB = Elbow WR = Ulnar stiloyd process GT = Great Trochanter KN = Knee (lateral) AN = Malleolus lateral HEE = Heel MT = 5th Metatarsal The 3D sapece were calibrated following the right hand rule, with the axis "X" = mediolateral; "Y" = anteroposterior; "Z" = vertical. Values are in mm. --- 🔎 Example { "07": { "W40": { "4": { "RLOBx": [61.44, 61.92, 60.88, ...], "RLOBy": [56.09, 56.09, 54.58, ...], ... } } } }