Cool Workouts - Detailed Gym Protocol Overview
8💪Gym

Cool Workouts

Action Protocol

Train in <20°C. Cool palms and forehead + water spray + cold water ingestion.

Evidence Gallery

Cool Workouts Scientific Evidence Chart 1
Cool Workouts Scientific Evidence Chart 2
Cool Workouts Scientific Evidence Chart 3

In Depth Protocol

Heat creates a "Civil War": your body must choose between pumping blood to muscles (for power) or skin (for cooling). Per-Cooling (During): Active cooling during rest intervals is even more potent. Cooling Vests show a massive ~12% performance boost, while Fanning + Water Spray provides ~8% Pre-Cooling (Before): Lower core temp immediately before training. Cold Water Immersion yields the highest benefit (~7%), followed by Ice Slushie Ingestion (~4%).

✅ Pros

  • Power Preservation: Prevents the ~50W drop in power output seen in hot conditions
  • Performance Boost: Mid-workout cooling (AC/fanning) can improve output by ~8-12%
  • Cardiac Efficiency: Maintains Stroke Volume (blood per beat), preventing heart rate spikes.

⚠️ Cons

  • Muscular Stiffness: Cold muscles are less elastic - do a proper warm up
  • Cost: Ideally AC and a fan will do, but if you want to go all in, consider active cooling

Sources & Verification

Reviewed by Tomas|Last updated: 12/29/2025