Your Competitors Are Suffering in the Heat—You Won’t Be

Heat is one of the most underestimated forces in endurance racing. But it’s not just a challenge—it’s a performance opportunity. The difference? Whether or not you trained for it.

At Mach1 Performance, we help athletes turn heat into an edge. Here’s how.


☀️ Why Heat Wrecks Performance (Unless You’re Ready)

Heat tolerance is not about mental toughness—it’s physiological. If you’re not heat-acclimated, your body must work harder to stay cool:

  • Heart rate spikes

  • Perceived exertion skyrockets

  • Power output plummets

Add sweat loss and poor cooling strategy, and it’s game over before the finish line.

But with targeted heat training, you can:

  • Reduce heart rate drift

  • Improve sweat response

  • Increase plasma volume

  • Perform stronger in high temps

“Athletes vary widely in sweat rate, sodium loss, and thermoregulation—one-size-fits-all advice doesn’t work.”


🔥 What Heat Training Actually Does for You

Expands Plasma Volume

10 days of heat acclimation led to a 6.5% plasma volume increase + improved cardiac output.
Lorenzo et al., 2010

Lowers Core Temp Threshold for Sweating

Earlier sweating = more efficient cooling and performance stability.

Improves Thermal Comfort

Less mental strain in the heat = better pacing and resilience.

Preserves Power Output

Heat-acclimated athletes improve TT performance by up to 8% and VO₂max in heat by up to 5%.
Lorenzo et al., 2010


How to Heat Train Without a Sauna

1. Indoor trainer with minimal airflow
Crank the intensity—keep the airflow low for max adaptation.

2. Overdress on Zone 2 rides
Long sleeves on mild days = passive heat stimulus.

3. Hot baths post-ride
30 minutes in a hot bath within 30 minutes of finishing your ride.

4. Stack back-to-back hot rides
The stress accumulates for bigger gains.

“7–14 days of consistent heat exposure significantly improves thermoregulation and performance.”
Racinais et al., 2015


🧊 Race Day Cooling Tips from the Pros

  1. Pre-Cool: Ice vests, cold drinks, and shade before the start

  2. Hydrate Smart: Combine sodium loading with cold, carb-rich fluids

  3. On-Course Cooling: Ice socks, cold water dousing, insulated bottles

  4. Kit Matters: Light-colored, breathable fabrics (👋 Giordana FR-C Pro)

  5. Pace Early: Heat hits harder later—don’t surge too soon


🚨 Know the Warning Signs: Heat Exhaustion vs. Heat Stroke

⚠️ Heat Exhaustion

  • Dizziness, cramps, nausea

  • Fatigue with heavy sweating

  • Cool, clammy skin

What to do:
Stop. Shade. Hydrate with sodium. Cool key areas (neck, armpits, groin).

🚨 Heat Stroke (Medical Emergency)

  • Confusion, dry skin, seizures

  • No longer sweating

  • Core temp > 104°F

What to do:
Call EMS. Aggressive cooling ASAP. Do not give fluids if unconscious.


How the Pros Do It

Even athletes like Remco Evenepoel use heat training—even when racing in cooler temps—because the cardiovascular and thermal benefits extend beyond hot conditions.

Check out GCN’s breakdown of Remco’s protocol and how you can use the same principles.
🎥 Watch it here


The Takeaway: Train for the Heat—Dominate the Field

Most riders will survive a hot race. But you? You’ll thrive.

With smart acclimation, strategic hydration, and race-day cooling tools, you’ll ride stronger, suffer less, and outlast the competition—no matter how high the mercury climbs.

At Mach1 Performance, we personalize every aspect of your prep—from heat training to hydration strategies. If you’ve got a hot event on the horizon, let’s dial it in together.

👉 Book a strategy session or sign up for heat-specific performance coaching now.

Previous
Previous

Why Training Smarter (Not Harder) Wins in the Long Run

Next
Next

To Your Inner Critic: Rewiring Your Mind for Peak Performance