physiomio

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🧠 PhysioMio Dataset

PhysioMio: Bilateral and Longitudinal HD-sEMG Dataset of 16 Hand Gestures from 48 Stroke Patients

Julian Ilg, Alexander C. R. Oldemeier, Marie Fieweger, Luca Deuschel, Peter Rieckmann, Peter Young, Sabine Krause, Tim C. Lueth

🔬 Overview

The PhysioMio dataset provides comprehensive longitudinal and bilateral high-density surface electromyography (HD-sEMG) recordings from stroke patients with arm paresis. This unique dataset captures the neuromuscular patterns of both healthy and impaired forearms during rehabilitation, offering unprecedented insights into post-stroke motor recovery.

✨ Key Features

🏥 48 stroke patients with arm paresis
🤲 16 distinct hand gestures recorded per session
📅 Longitudinal recordings made during patients' stays in rehabilitation clinics
🔌 64-electrode HD-sEMG array for high-resolution muscle activity
⚖️ Bilateral comparison between healthy and impaired arms
📈 Recovery progression tracking across rehabilitation stages

📊 Dataset Statistics

Metric	Value
Participants	48 stroke patients
Recording Sessions	1-2 healthy + 1-12 impaired per patient
Gestures per Session	16 hand movements
Electrodes	64-channel HD-sEMG array
File Format	Apache Parquet (.parquet)
Comparison Data	Healthy arm baseline

🎯 Applications

This dataset is ideal for research in:

🧠 Neuromuscular deficit analysis in stroke patients
🔄 Motor recovery pattern identification
🤖 Assistive technology development
📊 Personalized rehabilitation strategies
🔬 Comparative healthy vs. impaired arm studies
🎯 Machine learning for gesture recognition

📖 Documentation

📁 Data Structure

data/
├── patient1/
│   ├── healthy_arm/      # Baseline recordings from healthy arm
│   │   ├── 01.parquet    # Session 1
│   │   └── 02.parquet    # Session 2
│   └── impaired_arm/     # Recordings from affected arm during rehabilitation
│       ├── 01.parquet    # Session 1
│       ├── 02.parquet    # Session 2
│       ├── ...           # Additional sessions
│       └── 12.parquet    # Session 12 (varies by patient)
├── patient2/
│   ├── healthy_arm/
│   └── impaired_arm/
└── ...                   # Additional patients (up to patient48)

The total number of files is 329. The dataset size is 4.4GB.

🔍 Data Format

File format: .parquet (Apache Parquet)
Sampling rate: 2048 Hz
Electrode layout: 64-channel grid around forearm
Session structure:
- healthy_arm/: 1-2 baseline sessions from unaffected arm
- impaired_arm/: Multiple sessions during rehabilitation (typically 1-12 sessions per patient)
- Each session contains 16 continuous segments, i.e. recordings of a gesture, whereas the gesture is indicated in the column movement_type. The order of gestures is always the same. The first gesture is "Rest".

Movement types

📄 Paper

📖 Read the full paper

📝 Citation (to be updated)

@article{physiomio2026,
  title={PhysioMio: A Longitudinal HD-sEMG Dataset for Stroke Rehabilitation Research},
  author={[Julian Ilg, Alexander C.R. Oldemeier, Marie Fieweger, Luca Deuschel, Peter Rieckmann, Peter Young, Sabine Krause, Tim C. Lueth ]},
  journal={[Scientific data 13]},
  year={2026},
  doi={[DOI]}
}

📊 Download

🤗 Hugging Face

🤝 Contributing

🐛 Bug reports: Open an issue

📜 License

This dataset is released under a custom data usage agreement (LICENSE). Please cite our paper if you use this dataset in your research.

🏆 Acknowledgments

🏥 Medical Team:
- Medical Park Loipl, Bischofswiesen, Germany
- Medical Park Bad Feilnbach Reithofpark, Bad Feilnbach, Germany
💰 Funding: This research was conducted in the context of the START-interaktiv"physiomio". The authors gratefully acknowledge the received funding from the German Federal Ministry of Education and Research for project 16SV9068 and from the German Federal Ministry for Economic Affairs and Energy for project 03EFBY0337, in which the presented study played a central role.
👥 Participants: All are indebted to all stroke patients who contributed to this research over the course of their rehabilitation stay