ProtocolAdvancedRecovery

Heat Acclimation Protocol

A progressive 6-week sauna protocol that builds heat tolerance the way a strength cycle builds a squat. Start at 15 min and 170°F; finish at 30 min and 195°F. Endurance athletes who run this protocol see measurable gains in plasma volume, VO2max, and time to exhaustion — without adding a single mile of running.

Duration
6 weeks / 4x per week
Intensity
advanced
Category
Recovery

Method

1Weeks 1–2: 15 min at 170°F, 4 sessions per week. Focus on consistency, not duration.
2Weeks 3–4: 20 min at 180°F, 4 sessions per week. You should feel the difference.
3Weeks 5–6: 25–30 min at 185–195°F, 4 sessions per week. Add a 10 min rest round if needed.
4Always post-training, never pre. Heat before lifting blunts performance.
5Hydrate aggressively: 20oz before, sip during, 20oz + electrolytes after
6Track resting HRV weekly — it should trend up as acclimation locks in

Outcome

Plasma volume expansion of 5–10%, VO2max gains equivalent to a moderate endurance block, and the ability to train hard in heat without breaking down. The sauna as a parallel training stimulus.

Use with

Other Protocols