{
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          "role": "Passive posterior-hip target; not contracting activation",
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      "roles": [
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          "role": "Swing clearance context (qualitative)",
          "amplitude": null,
          "source": {
            "title": "Hamner et al. 2010 and Hamner & Delp 2013, running role context",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC5507211/"
          }
        },
        {
          "name": "Vastus lateralis and medialis",
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            "FJ1442M",
            "FJ1443",
            "FJ1443M"
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          "role": "Support role (qualitative)",
          "amplitude": null,
          "source": {
            "title": "Hamner et al. 2010 and Hamner & Delp 2013, running role context",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC5507211/"
          }
        },
        {
          "name": "Soleus and gastrocnemius",
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            "FJ1394",
            "FJ1394M",
            "FJ1397",
            "FJ1397M"
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          "role": "Late-stance propulsion context (qualitative)",
          "amplitude": null,
          "source": {
            "title": "Hamner et al. 2010 and Hamner & Delp 2013, running role context",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC5507211/"
          }
        },
        {
          "name": "Gluteus maximus and medius",
          "source_ids": [
            "FJ1418",
            "FJ1418M",
            "FJ1419",
            "FJ1419M"
          ],
          "role": "Hip support role (qualitative)",
          "amplitude": null,
          "source": {
            "title": "Hamner et al. 2010 and Hamner & Delp 2013, running role context",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC5507211/"
          }
        },
        {
          "name": "Biceps femoris long head",
          "source_ids": [
            "FJ1395",
            "FJ1395M"
          ],
          "role": "Leg recovery context (qualitative)",
          "amplitude": null,
          "source": {
            "title": "Hamner et al. 2010 and Hamner & Delp 2013, running role context",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC5507211/"
          }
        }
      ],
      "negative_role_ids": [],
      "scope": "Authored in-place educational cycle on the same anatomy rig. Phase timing and colors are qualitative, not measured activation, speed, ground reaction force, or a recorded subject."
    }
  ],
  "rest_rule": "All joint local quaternions identity and root translation zero on leaving Movement; original GLB buffers unchanged. Patella is an independent rigid source bone carried halfway through each authored knee bend for visual review.",
  "limits": "Demonstration angles and coarse source-bone weights are visually reviewed educational reconstruction, not clinical joint centres, individual motion, activation, force or tissue strain.",
  "rig_correction": "v8 sidecars preserve corrected v10 object mapping and partition overlapping skin influences by original source triangle-edge geodesic; clip keyframes, qualitative roles and phase are unchanged.",
  "suite_status": "All twelve educational catalogue items authored as deterministic pose candidates; individual filled-surface and independent UAT required before release.",
  "prior_pilot_sha256": "f96532d996c29cc4d5d89c5652ce073915fa1aec9cebba55f31a833adefe6d12"
}
