ATC 350: To Train or Not To #Train Through #Hormonal Imbalances (With Healthy Comebacks), High Heart Rate Concerns, #Heart Health Check, and More ow.ly/FopH50Nfxyn @GenUcan
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On this episode of Ask the Coaches:
As usual, great to hear from the experts. A few years ago I went really low carb and ran into hydration issues as well (bought a ketone monitor, drank MCT oil, the whole 9 yards). It helped me knock a chunk of time off my Ironman 70.3 time, but ended up severely dehydrated. My hypothesis is that it was due to a lack of minerals which help with the absorption of water. Insulin is a storage and growth hormone, and the body just doesn't hang onto sodium and other electrolytes if a low carb diet limits the amount of insulin your body makes. I'd be adding, quite literally, tablespoons of salt to some meals to keep up my salt intake.
Low carb seemed to keep me from hitting the wall, but at the cost of severe dehydration to the point where I ended up in the med tent at the end of a few races. The solution? Wish I had one. All I could do was pack away massive amounts of salt and always have some electrolytes in everything I was drinking.
Just wanted to share my experience. Looking forward to the next ATC!
I love downhills, so this was clickbait for me.
I wonder if the listener's heartrate was really increasing on the downhills if it's spiking like described. Without more detail, I'm inclined to think it's more likely that it's a glitch with the heartrate equipment losing good contact with the skin with the increased movement, bouncing, change in tempo, or arm waving on the downhill. With periodic loss of good contact with bounces, etc. at same frequency as the stride frequency, the heartrate could be reading stride frequency, which might be around 160-190. Count your strides on the downhill (count one leg for a minute and double) and if it matches the heartrate reading, that's probably it. Or try to verify heartrate with a different HR monitor.
I would have had fun if I had been in that study because I must have really good downhill economy. 15% grade is close to the optimal grade for me for long fast downhills when I'm going for downhill strava CRs. I'm not a young dude at 47, but I can average 4:45 per mile at that grade for a half hour and not be sore in the slightest afterwards.