Stress Index

Stress Index — Professional HRV Analysis for Wellness Professionals

Stress Index is a professional Heart Rate Variability (HRV) analysis app designed for wellness professionals, physiotherapists, coaches, and sport scientists. Connect a Polar H10 chest strap sensor via Bluetooth and get a complete assessment of your client's autonomic nervous system status in minutes.

The app calculates over 24 HRV parameters and generates 5 proprietary wellness scores that are easy to read and communicate.

WELLNESS SCORES
- Stress Index — overall autonomic stress level (0-100)
- Recovery — parasympathetic recovery capacity
- Balance — sympathovagal balance
- Energy — autonomic nervous system vitality
- Inflammatory Modulation — vagal anti-inflammatory capacity

KEY FEATURES
- Real-time HRV measurement with live rhythmogram
- 24+ HRV parameters: RMSSD, SDNN, DFA Alpha1, LF/HF, and more
- 3 measurement types: standard, orthostatic test, coherence breathing
- Extended sessions with real-time tagging and pre/post comparison
- Sport module with DFA Alpha1 zones and training load tracking
- Session comparison with trends over time
- Professional PDF reports
- Integrated client management
- Web dashboard at stressindex.io
- Automatic cloud backup, GDPR compliant, EU server (Frankfurt)

INTENDED FOR
Wellness professionals: physiotherapists, osteopaths, sports physicians, fitness coaches, personal trainers, and professionals who want to offer clients an objective autonomic nervous system assessment.

This app provides wellness information only and is not intended to diagnose, treat, cure, or prevent any disease.

COMPATIBLE SENSORS
Polar H10 (ECG chest strap, recommended)
Polar H9, Polar Truth Sense
Generic BLE heart rate sensors with RR interval support

SUBSCRIPTION
Access requires active credentials from stressindex.io. Subscriptions are managed directly through our website.

PRIVACY
All data stored on European servers (Frankfurt). GDPR compliant (EU Regulation 2016/679). Health data processed under Art. 9 GDPR.