---
license: other
task_categories:
  - robotics
tags:
  - motion-retargeting
  - musclemimic
  - mujoco
  - amass
pretty_name: MuscleMimic GMR-Fit Retargeted Motions

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  1. This dataset is derived from AMASS data and is subject to restrictions consistent with the AMASS license.
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  3. You will not copy, share, distribute, sublicense, transfer, or otherwise make this dataset available to any third party.
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---

# MuscleMimic GMR Retargeted Motions

Pre-retargeted motion capture data for the MyoFullBody musculoskeletal model,
generated using [General Motion Retargeting (GMR)](https://github.com/amathislab/gmr_plus).

## Dataset Groups

| Group | Motions | Description |
|-------|---------|-------------|
| KIT_KINESIS_TRAINING_MOTIONS | 972 | KIT locomotion training set |
| KIT_KINESIS_TESTING_MOTIONS | 108 | KIT locomotion test set |
| AMASS_TRANSITION_MOTIONS | 110 | AMASS action transitions |

## Usage

```python
# Auto-download (integrated into training pipeline)
# Just set retargeting_method: gmr in your config - caches download automatically.

# Manual download
uv run musclemimic-download-gmr-caches --dataset-group KIT_KINESIS_TRAINING_MOTIONS

# Python API
from musclemimic.utils import download_gmr_dataset_group
download_gmr_dataset_group("KIT_KINESIS_TRAINING_MOTIONS")
```

## File Format

Each `.npz` file contains retargeted motion data with arrays:
`qpos`, `qvel`, `xpos`, `xquat`, `cvel`, `subtree_com`, `site_xpos`, `site_xmat`,
plus metadata (`joint_names`, `body_names`, `site_names`, `frequency`, `split_points`).

## Source

Derived from the [AMASS](https://amass.is.tue.mpg.de/) dataset.
Please comply with the AMASS license terms when using this data.