CPET Platform
Digital transformation of cardiopulmonary exercise test data
The Problem
Paper-Based CPET Reports
Cardiopulmonary exercise test results were printed on paper or saved as static PDFs, making it impossible to search, compare, or digitally process the data for longitudinal analysis.
No Trend Analysis
Without digitized historical data, clinicians couldn't track patient progress over multiple tests. Comparing VO2max improvements or fat oxidation changes across months required manually pulling archived files.
Manual Data Entry
Breath-by-breath metabolic data from COSMED K5 equipment was manually transcribed into spreadsheets, introducing transcription errors and consuming valuable clinical time.
Paper printouts and static PDFs for CPET results
Digital reports with interactive charts and automated analysis
Manual spreadsheet transcription of breath-by-breath data
Direct data import from COSMED K5 with automated processing pipeline
No way to compare patient results across multiple test sessions
Longitudinal trend analysis with VO2max and FATMAX progression tracking
Approach
Structured Data Pipeline for Clinical Precision
The platform ingests raw breath-by-breath data from COSMED K5 equipment and processes it through a standardized pipeline: parsing raw CSV exports, applying smoothing algorithms (30-second rolling averages), calculating derived metrics (VO2max, VT1/VT2, FATMAX), and generating publication-quality reports. TimescaleDB hypertables store time-series data efficiently, enabling sub-second queries across thousands of data points per test. UUID-based patient identification with encrypted subject names ensures HIPAA-compliant data handling throughout the pipeline.
BDD Pipeline Flow
Key Features
Test Data Entry
Streamlined interface for importing breath-by-breath metabolic data from COSMED K5 exports. Supports multiple test protocols (Bruce, Ramp) with automatic parameter detection and validation of physiological ranges.
Automated Report Generation
One-click generation of comprehensive CPET reports including VO2max, ventilatory thresholds (VT1/VT2), FATMAX zone, and exercise prescription. Exports to PDF with publication-quality charts and clinical interpretation guidelines.
Patient Trend Analysis
Longitudinal visualization of patient progress across multiple CPET sessions. Track VO2max improvements, fat oxidation rate changes, and ventilatory threshold shifts over weeks and months with interactive comparison charts.
Multi-Protocol Support (Bruce, Ramp)
Supports industry-standard exercise protocols including Bruce (staged treadmill) and Ramp (continuous incremental). Protocol-specific analysis templates ensure accurate threshold detection regardless of test methodology.
Architecture
Results
High-frequency metabolic data processing from COSMED K5
Automated publication-quality CPET reports
Bruce and Ramp protocols with protocol-specific analysis
Encrypted identification for compliant longitudinal tracking