RPE vs. HR: Running in the Heat

I live in Florida and as it gets closer to summer the heat and humidity are ramping up quickly. Naturally with that I’ve noticed my zone 2 runs progressively get slower to remain in the needed HR range however the RPE is at like a 2. When you run in the summer do you ignore pace and go off of RPE or stick to the HR method and reap the rewards when it cools off?

Summary

  • RPE is preferred by most runners, with HR used as a reference point.
  • Heat and humidity impact HR, making it unreliable for some individuals during summer runs.
  • Adjusting pace according to HR variations in hot weather may not accurately reflect exertion levels.

Reaping Rewards in the Heat

Fotooutdoors emphasizes using RPE primarily while using HR as a check in hot conditions. They adjust intensity due to heat sensitivity but still include hard efforts in their routine.

Challenging Heart Rate Zones

UnnamedRealities explains the complexities of interpreting HR zones in hot weather, where factors like heat, sweat response, and individual differences can skew readings. Despite the challenges, they adapt their pace based on perceived effort rather than HR alone.

Listening to Your Body

Squeakhaven mentions a feedback loop in which HR can continuously rise in the heat, signaling the need to slow down or even cut the run short. This highlights the importance of being attuned to your body’s signals.