File:Heart-Rate-Effort-Curves.svg
How the cost of a minute rises with heart rate, relative to a minute at 70% of maximum heart rate. Lines: oxygen uptake from Swain et al. (1994), %VO2max ≈ (%HRmax − 37) ÷ 0.64; Banister's TRIMP weighting (x × 0.64e^1.92x for men, x × 0.86e^1.67x for women, x = fraction of heart rate reserve); Fellrnr's doubling rule, 2^((%HRmax − 70) ÷ 15); and Edwards' zone weights (1–5 for 10-point bands from 50% of maximum). Heart rate reserve calculated for a maximum of 180 and resting heart rate of 50 bpm. LT1 (145) and LT2 (165) are the worked runner's in the article.
Original chart drawn for Fellrnr.com with Claude (AI), generated from the formulas: x = 90 + (%HRmax − 50) ÷ 50 × 510; y = 380 − value ÷ 4 × 340.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:27, 11 November 2026 | | 760 × 470 (10 KB) | Fellrnr (talk | contribs) | Chart for the Heart Rate Zones draft: cost of a minute relative to 70% of maximum heart rate, by different measures |
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- Heart Rate
