Files
workouts/Exercise Library/Back Extension/motion.json
T
rzen b71ee0a355 Add the hinge pattern: Deadlift, RDL, Glute Bridge, Hip Thrust, Back Extension
The biggest hole in the coverage matrix - the hinge had zero entries in
any modality. Deadlift and Romanian Deadlift are the library's first
standing (camera.zoom) and first barbell motions.

Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3
2026-07-07 11:53:43 -04:00

38 lines
1.2 KiB
JSON

{
"name": "Back Extension",
"primary": 2,
"working": ["spine"],
"props": [
{"type": "scene", "shapes": [
{"kind": "line", "pts": [[102, 124], [154, 106]], "w": 9, "depth": 8},
{"kind": "line", "pts": [[130, 122], [130, 150]], "w": 5},
{"kind": "line", "pts": [[58, 142], [88, 142]], "w": 5, "depth": 6}
]},
{"type": "roller", "at": ["foot_r", "foot_l"], "r": 4.5, "side": 1, "back": 4}
],
"frames": [
{
"hold": 0.4, "tween": 1.0,
"root": {"pos": [150, 102], "pitch": 112},
"spine": [0, 12],
"neck": 10, "head": -30,
"shoulder_r": 30, "elbow_r": 140,
"shoulder_l": 30, "elbow_l": 140,
"hip_r": 48, "knee_r": 12, "ankle_r": 12,
"hip_l": 48, "knee_l": 12, "ankle_l": 12,
"pins": {"foot_r": [72, 136], "foot_l": [76, 138]}
},
{
"hold": 0.6, "tween": 1.1,
"root": {"pos": [150, 102], "pitch": 65},
"spine": [0, -6],
"neck": 5, "head": -55,
"shoulder_r": 30, "elbow_r": 140,
"shoulder_l": 30, "elbow_l": 140,
"hip_r": 2, "knee_r": 12, "ankle_r": 12,
"hip_l": 2, "knee_l": 12, "ankle_l": 12,
"pins": {"foot_r": [72, 136], "foot_l": [76, 138]}
}
]
}