Saeko Matsushitas First Exhaustion 4 Hours Spe New! (4K 2024)

| Metric | Expected Range for Elite Ultra‑Runners | Matsushita’s Reading | |--------|----------------------------------------|----------------------| | | 4:00–4:20 min/km | 3:45 min/km | | Heart‑Rate Zone (average) | 150–165 bpm | 165–190 bpm | | Core Temperature (peak) | ≤38.5 °C | 38.9 °C | | Blood Lactate (peak) | ≤6 mmol/L | 9.2 mmol/L | | Hydration Loss | ≤2 % body weight | 2.8 % body weight |

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: The response to such content could vary widely among audiences, with some interested in the narrative or thematic approach, and others focusing on the adult content aspects. | Metric | Expected Range for Elite Ultra‑Runners