Fitness Profile

Recreational

HR Parameters

▼
60 bpm
75%
180 bpm
150 bpm

Lactate Parameters

▼
1.0 mmol/L
2.0 mmol/L
8.0 mmol/L

Cheng Constants

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0.0060
0.012
0.066

Banister TRIMP Parameters

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1.92
Male: 1.92, Female: 1.67 (Morton et al., 1990)
a parameter: 0.64 (sex-specific, Morton et al., 1990)
Banister, E. W. (1991). Modeling elite athletic performance. In: Physiological Testing of the High-Performance Athlete.

iTRIMP Parameters

▼
1.90
Range 1.5-4.0 based on individual lactate curve (Stagno et al., 2007)
Scientific basis: b derived from lactate-heart rate relationship
Stagno, K. M., Thatcher, R., & van Someren, K. A. (2007). A modified TRIMP to quantify the in-season training load of team sport players. Journal of Sports Sciences, 25(6), 629-634.

PAI Parameters

▼
1.80
Multiplier for PAI-like score calculation

Training Zones

Low Zone
<85% of LT
80% of training time
Moderate Zone
85-105% of LT
MINIMIZE
High Zone
>105% of LT
20% of training time
Polarized Training Model: 80% Low, 20% High, MINIMIZE Moderate

Data Import

Scientific References

Scientific Validation

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Loading validation summary...
Cheng β Range 0.04-0.11 Cheng et al. (1992) extended
Banister a (male) 0.64 Morton et al. (1990)
Banister a (female) 0.86 Morton et al. (1990)
Banister b (male) 1.92 Banister (1991)
Banister b (female) 1.67 Morton et al. (1990)
iTRIMP b Range 1.5-4.0 Stagno et al. (2007)
LT% VO₂max 63-88% Jones & Carter (2000)
Lactate Growth 3-6× Mader et al. (1976)
Parameters validated against published scientific ranges. Individual calibration recommended for optimal accuracy.

Cheng Training Load Model with Lactate Curve

Cheng, B., Kuipers, H., Snyder, A. C., Keizer, H. A., Jeukendrup, A., & Hesselink, M. (1992). "A new approach for the determination of ventilatory and lactate thresholds." International Journal of Sports Medicine, 13(7), 518-522.
← Training Load (Cheng) Lactate (mmol/L) →

Banister TRIMP with Lactate Curve

Banister, E. W. (1991). "Modeling elite athletic performance." In: J. D. MacDougall, H. A. Wenger, & H. J. Green (Eds.), Physiological Testing of the High-Performance Athlete (2nd ed., pp. 403-424). Champaign, IL: Human Kinetics.
← Banister TRIMP Lactate (mmol/L) →

iTRIMP with Lactate Curve

Stagno, K. M., Thatcher, R., & van Someren, K. A. (2007). A modified TRIMP to quantify the in-season training load of team sport players. Journal of Sports Sciences, 25(6), 629-634.
← iTRIMP Lactate (mmol/L) →

PAI-like Score

Calibrated Cheng formula to approximate PAI scores

Daily TRIMP Comparison

Shows normalized daily TRIMP values across different models