Extreme negative response to heat

Training Advice/Discussion General

3 years ago 06/12/2020 8:46pm EDT

Anyone have serious issues with running in heat/humidity? I always suspected that my heat tolerance is significantly lower than other people, but only recently decided to get some real data. My heart rate increases 20-30 BPM when it's over 80 degrees out. I can pretty easily get up to 200 BPM on an easy effort. Pace seems to have zero correlation to heart rate. I'll go up to 200 BPM running 7 minute pace or 10 minute pace.

I guess my real question is this: is it worth it to keep running in the heat? Does getting my heart rate to 200 BPM on every run have negative consequences? Should I just bag running outside and try to hit the treadmill for the summer? Any tips on how not to get absolutely destroyed in the heat?

3 years ago 06/12/2020 9:36pm EDT

re: Heat demons

This sounds super serious. I just recently bought into heart rate training because I too struggle in the summer months. Realized I was training significantly harder than I should have these last two years. Still had tremendous PR’s. Anyways.... are you using your watch or a chest strap monitor? Watches are extremely inaccurate compared to chest straps which is 99%+ accurate.

3 years ago 06/12/2020 9:57pm EDT

re: Heat demons

Run first thing in the morning. I don't know where you live, but in most parts of the country it's usually below 80 degrees just before sunrise. I currently live in inland central California where the highs are often over 100 but the humidity is low and the lows usually dip below 70. I start my runs around 5 am when the sun hasn't risen yet and the temperatures are usually quite tolerable. I lived for four years in Kansas where the lows were often closer to 80 with much higher humidity, but even there it was marginally tolerable before and shortly after sunrise in the morning.

I hate hot weather too and I don't think it's wise to beat your body up by running in the heat.

3 years ago 06/12/2020 10:59pm EDT

re: MJOswald3

At first I just had a watch, and figured it was inaccurate. I got a chest strap, but didn't see any major changes. I hate the chest strap and went back to just using the watch because they are showing the same readings. If I feel like it's way off, I'll stop my run and take my heartrate manually, but the watch has always been spot on.

I live on a subtropical island, so humidity is ridiculously high in the morning during summer. Temps are a little cooler and I'm not in the sun the whole time so this is probably my best option. I have a job that doesn't have set hours so I can't run at the same time every single day, which is another challenge.

I'm really considering just running on the treadmill everyday. I have always hated the treadmill but I don't want to spend 4 months suffering without improvement.

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