What Do the Extremes of Human Energy Intake Teach? Over Long Events, Sustained Expenditure Plateaus Below 3× Basal Metabolic Rate, With a Supply Ceiling Near 2.5×
Oct 25
4 min read
How much energy can a human body burn, day after day, and still keep going? The answer matters beyond ultramarathons: it sets the ceiling on how much training volume can be fuelled, helps explain why very high training loads can run in an energy deficit, and shows how unreliable food diaries become exactly when intake matters most.
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