Pre-solved maximum heart rate for age 42. Tanaka (2001): 179 bpm | Fox (220-age): 178 bpm | Gellish (2007): 178 bpm. Training zones (Tanaka): Z1 Warm-up 90-107 bpm, Z2 Fat Burn 107-125 bpm, Z3 Aerobic 125-143 bpm, Z4 Threshold 143-161 bpm, Z5 VO2 Max 161-179 bpm. AHA moderate intensity: 90-125 bpm. ..
ESTIMATED MAX HEART RATE — AGE 42
179
Tanaka (2001)
Most accurate
208 − 0.7 × age
178
Fox (220−age)
Classic formula
220 − age
178
Gellish (2007)
Validated
207 − 0.7 × age
Max HR declines ~0.7 bpm/year · AHA moderate: 90–125 bpm · Vigorous: 125–152 bpm
5 TRAINING ZONES — AGE 42 (Tanaka HRmax 179 bpm)
| Zone | % | BPM Range | Benefit |
|---|---|---|---|
| Z1 Warm-up | 50-60% | 90–107 | Recovery, very easy |
| Z2 Fat Burn | 60-70% | 107–125 | Fat oxidation, aerobic base |
| Z3 Aerobic | 70-80% | 125–143 | Cardiovascular fitness |
| Z4 Threshold | 80-90% | 143–161 | Lactate threshold, race pace |
| Z5 VO2 Max | 90-100% | 161–179 | Max cardiac output |
| AHA Moderate | 50–70% | 90–125 | 150 min/week recommended |
| AHA Vigorous | 70–85% | 125–152 | 75 min/week recommended |
ZONE BARS — HRmax 179 bpm
FORMULA COMPARISON — AGE 42
Maximum heart rate declines ~0.7 bpm per year after age 20. At age 42, the three validated formulas give 179 bpm (Tanaka), 178 bpm (Fox), and 178 bpm (Gellish). The Tanaka formula is recommended as the most accurate.
What is the maximum heart rate for a 42-year-old?
For a 42-year-old, the estimated maximum heart rate (HRmax) is:\n\nTanaka (2001) — recommended: 179 bpm\nFormula: 208 − (0.7 × 42) = 179 bpm\n\nFox (1971) — classic: 178 bpm\nFormula: 220 − 42 = 178 bpm\n\nGellish (2007) — validated: 178 bpm\nFormula: 207 − (0.7 × 42) = 178 bpm\n\nTraining zones at age 42 (using Tanaka HRmax 179 bpm):\nZ1 Warm-up (50-60%): 90-107 bpm\nZ2 Fat Burn (60-70%): 107-125 bpm\nZ3 Aerobic (70-80%): 125-143 bpm\nZ4 Threshold (80-90%): 143-161 bpm\nZ5 VO2 Max (90-100%): 161-179 bpm\n\nAHA moderate exercise target (50-70%): 90-125 bpm\nAHA vigorous exercise target (70-85%): 125-152 bpm\n\nNote: These are population averages. Your actual HRmax may vary by ±10-12 bpm. The only accurate way to measure HRmax is via a maximal graded exercise test under medical supervision.
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Max heart rate age 42 · Tanaka: 179 bpm · Fox: 178 bpm · Gellish: 178 bpm · Sources: Tanaka et al. (2001), Fox (1971), Gellish et al. (2007)