Typical effort: 50–75 % of maximum heart rate (Sci Rep 2023). Generate a complete .fit file for a session you could not record.
Barbell knurling runs straight across the wrist on front squats, cleans and presses. A band there is painful under load, shifts the bar path, and the wrist extension required for pressing pushes the sensor off the skin — which is also why wrist-based readings during lifting are unreliable even when you keep it on.
Strength training averages 50–75 % of maximum heart rate across a session — lower than most people expect. Heart rate climbs sharply during a working set, often to 80–90 %, but rest periods of 90 to 180 seconds pull it back down, and the rests take up most of the clock.
| Effort heart rate | 50–75 % of HRmax |
| Source | Sci Rep 2023 |
| Load pattern | See methodology table |
A 60-minute hypertrophy session is typically 8 min warm-up, then a primary lift for 4 sets of 8–12, a secondary lift for 3 sets of 10–15 and an isolation exercise for 3 sets of 12–15.
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