Table 2 Data collection framework for marathon training analysis.
Feature category | Specific metrics | Sampling frequency | Data processing | Relevance to training models |
|---|---|---|---|---|
Cardiovascular | Heart rate, HRV, HR zones, recovery HR | Continuous (1 Hz) | R-R interval analysis, smoothing algorithms | Primary intensity zone classification |
Movement & GPS | Distance, pace, elevation, route mapping | Continuous (1 Hz) | GPS correction, elevation smoothing | Training load quantification |
Training load | Session duration, distance covered, elevation gain | Per session | Session summation, weekly totals | Volume quantification |
Subjective measures | RPE, fatigue score, sleep quality, readiness | Daily/Post-session | Standardized scales (1–10) | Recovery status indicator |
Performance testing | Time trials (5 km, 10 km, half-marathon), VO₂max | Bi-weekly/Monthly | Laboratory protocols | Model validation metrics |
Environmental | Temperature, humidity, wind conditions | Per session | Weather integration | External load modifier |
Biomechanical | Cadence, stride frequency (from GPS watch) | Continuous (1 Hz) | Digital filtering | Running efficiency indicator |
