Fitness
Endurance Heat Acclimation
Repeated easy training in warm conditions over one to two weeks to lower heart rate, improve sweating, and prepare for hot-weather performance.
Endurance heat acclimation prepares the body for hot races or summer blocks by repeating easy sessions in warm environments over seven to fourteen days. Core adaptations include lower heart rate at a given pace, earlier sweating, and better plasma volume.
Pair gradual heat exposure with electrolytes and conservative intensity—do not chase PRs in week one.
Common questions
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How long does heat acclimation take?
Most adaptations appear within seven to fourteen days of consistent warm exposure. Maintenance needs periodic heat sessions if you return to cool climates.
Related terms
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