Motion assessment system iSen

gaitpostureautomatic

Overview
iSen is a portable inertial motion capture and analysis solution combining wireless IMU sensors and dedicated software for biomechanical analysis, biofeedback and automated reporting. The system supports real‑time 3D visualization and can acquire and synchronize data from third‑party devices for clinical and research workflows.

Key features

• Wireless communication between sensors and system via Wi‑Fi.
• Flexible sensor configurations: biomechanical models from 1 to 18 sensors (typical full‑body setups from 1 up to 17 sensors).
• Time‑stamped synchronized sensor samples for multi‑device alignment.
• Selectable sampling rate from 25 to 400 Hz.
• Integratable with third‑party devices (real video, force platforms, pressure mats, ANT+ devices, EMG, etc.).
• Option to include reference video footage synchronized with motion data.
• High orientation accuracy: pitch/roll < 1° RMS (vendor reports pitch/roll < 0.5° in some conditions), heading < 2° RMS.
• Report templates for quick automated report generation.
• Data logging available for extended recordings (IWS and planned on iSen).

Modules and application areas
The solution provides modules and ready protocols for Ergonomics, Forensic analysis, Gait analysis, Rehabilitation and Research. Available protocols cover individual joints, back, arms and shoulders, upper trunk, lower trunk, full body and full‑body research setups.

Operation workflow

• Choose analysis protocol.
• Place sensors on the subject according to the selected model.
• Record synchronized movement data.
• Review recordings and generate automated reports.

What is included

• Software: annual license including updates and support for one year.
• IMU sensors: configurable from 1 to 18 sensors, up to 400 Hz. Compatible with IWS, Delsys and Cometa sensors.
• Integrations: compatibility with third‑party devices such as cameras, force platforms, pressure mats, ANT+ devices and EMG systems via plug‑ins.
• Training & support: initial technical guidance for first recordings and tests (support in English and Spanish; vendor response times apply).

Data and exports
iSen provides raw sensor data (quaternions, gyroscope, accelerometer, magnetometer), biomechanical curves (joint angles over time) and event sequences captured during recordings. Data can be exported to CSV and streamed to third‑party tools via available plug‑ins.

Documentation
Protocols, configuration guides and technical brochures (PDF) are provided by the vendor for setup and validation.

Technical specifications

• Sensor dimensions: 56 × 39 × 18 mm.
• Sensor weight: 46 g.
• Sampling rate: selectable from 25 to 400 Hz.
• Orientation accuracy (static): Pitch/Roll < 1° RMS (vendor reports pitch/roll < 0.5° in some sections); Heading < 2° RMS.
• Sensor resolutions: Accelerometer 490 μg (16‑bit); Magnetometer ~0.3 μT (14‑bit); Gyroscope 0.06°/s (17‑bit).
• Sensor charge time: 2–3 hours.
• Typical battery life: ~3.5 hours per full charge.
• Wireless network: operates over Wi‑Fi; indoor range depends on environment (example vendor router range ~50 m or less).
• Minimum PC requirements: Intel Core i5 (4 cores recommended); 8 GB RAM; 2 GB disk for installation (additional space for capture database); Wi‑Fi 802.11n/802.11ac or Ethernet (Ethernet port must not be shared with Internet); Windows 10; mid‑range NVIDIA GPU compatible with DirectX 12 recommended; dedicated USB 3.0 port required for some real‑time video cameras (no hubs).
• Data export formats: CSV (quaternions and raw sensor channels), export of biomechanical curves; plug‑ins available for streaming to third‑party software.