Swimming Physiological Model
Calculated CSS
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(m/s)CSS Pace / 100m
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(mm:ss.t)SDI TTE at CSS
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(mm:ss.t)D' Capacity
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(meters)Calculated SDI
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(Index factor)Hypothetical SDI Predictor
Enter a target SDI to see how improving endurance impacts race times. (Anchored to current 400m speed).
| Distance | Current SDI Time | Target SDI Time | Time Difference |
|---|---|---|---|
| Enter a target SDI to see comparison | |||
Target Pace TTE Predictor
Enter a target pace to see how long and how far the athlete can sustain it before exhaustion.
Predicted Time to Exhaustion: -
Maximum Distance Covered: - meters
Maximum Distance Covered: - meters
Distance Predictions
| Distance | CSS Model Prediction | SDI Model Prediction | ||
|---|---|---|---|---|
| Total Time (mm:ss.t) | Pace/100m (mm:ss.t) | Total Time (mm:ss.t) | Pace/100m (mm:ss.t) | |
| Enter data to see predictions | ||||
Custom Training Zones (SDI Model)
| Zone | Intensity Description | Target Pace (mm:ss.t) |
|---|---|---|
| Enter data to generate zones | ||
Critical Power Calculator
Results
Critical Power (CP): W
W' (Anaerobic Capacity): kJ
Research-Based Estimates
Estimated FTP (~95% of CP): W
Estimated LT2 (~93% of CP): W
*Note: Mathematical CP typically overestimates true physiological steady-state. Research suggests Functional Threshold Power (FTP) sits at roughly 95% of CP, while true Lactate Threshold 2 (MLSS) is often closer to 90-93% of CP.