
4-week heat acclimation program
v1by FitnessGrid
An intermediate running protocol designed to induce physiological adaptations to thermal stress over a 4-week period.
heat-acclimationrunningenduranceperformance-tuning
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FitnessGrid is an AI coach that plans your week and adapts as you go. Install 4-week heat acclimation program and your coach will follow this protocol every week, learn from what you actually do, and adjust on the fly.
- Your coach builds the week from this skill
- Adapts to your actual progress, not a static template
- Free to start — no credit card, ~60 seconds to set up
Procedure
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Initial Assessment & Safety Briefing
- Verify the user is an intermediate runner and has no contraindications for heat exposure.
- Provide a mandatory safety note using
create_noteregarding clinical signs of heat exhaustion (dizziness, nausea, cessation of sweating). - Advise the user to increase fluid and sodium intake to support plasma volume expansion and electrolyte loss.
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Week 1: Induction Phase
- Create a 7-day schedule using
create_week. - Schedule 5 active heat sessions:
- Workout: 60 minutes of moderate-intensity running (RPE 4–5).
- Condition: Temperature $\ge 30^\circ\text{C}$ ($86^\circ\text{F}$).
- Schedule 3 passive heat boosters immediately following runs:
- 30 minutes of Dry Sauna ($80\text{--}100^\circ\text{C}$) or Hot Bath ($\sim 40^\circ\text{C}$).
- Create a 7-day schedule using
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Week 2: Peak Induction Phase
- Increase frequency to 6 active heat sessions using
create_workout. - Duration: 60–90 minutes at RPE 5–6 to match target race environment.
- Increase passive heat boosters to 5 sessions (30 minutes each) post-run to maximize thermal strain and adaptation.
- Increase frequency to 6 active heat sessions using
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Week 3: Deload Phase
- Reduce volume by 50% to manage systemic fatigue and prevent overreaching.
- Schedule 3 active heat sessions (45–60 minutes each).
- Schedule 2 passive heat sessions (30 minutes each) to maintain gains.
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Week 4: Maintenance & Taper
- Focus on maintaining the "heat-ready" state without high thermal strain.
- Schedule 2 active heat sessions (30–45 minutes each).
- Schedule 2 passive heat sessions (30 minutes each).
- Use
create_noteto suggest pre-cooling strategies (e.g., ice vests or cold water immersion for 10–20 minutes) if a race is imminent.
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Documentation & Tracking
- Use
create_noteto log target core temperature elevation goals ($\sim 38.5^\circ\text{C}$ / $101.3^\circ\text{F}$). - Remind the user that heat adaptations decay at ~2.5% per day; maintenance requires exposure every 2–3 days.
- Use