[smarshall54]

smarshall54 on May 21, 2022 at 9:02 pm · in reply to: Power @ AeT Improving, but AeT HR is not #67453

Hi Bill, thanks for the information. I am very happy with the progress I have observed so far, just trying to square my understanding with what the book suggests, which is moving the AeT.

I’m 34 and definitely not elite fitness, or even that competitive, I just have time to train right now.

My confusion is that my AnT is 179 and AeT is 144, a difference of 25%, even if I can’t get to 10% I figured it would be at least a little trainable.

Anyway, I could be jumping the gun here. I understand the HR drift test and AnT test protocols are not an exact science, and that the “10% rule” is just a rule of thumb. And it has only been 3 months, and the AeT measurement is noisy due to recovery status.

I’m going to carry on and see what things look like in another few months. I’ll post more data when I do. I appreciate the responses!

[smarshall54]

smarshall54 on May 19, 2022 at 11:55 am · in reply to: Unable to Complete Stair Workout: Tips? #67369

If he can do 45 minutes, it’s not a strength issue. I think it’s a training volume issue. A 45 minute session a few times a week sounds like more than enough to get you up south sister. If he is interested in building towards 90 minute sessions, it should be done over several weeks, or months. Throwing a high volume of training at someone not prepared for it is likely to result in injury.

[smarshall54]

smarshall54 on May 18, 2022 at 7:05 pm · in reply to: Power @ AeT Improving, but AeT HR is not #67356

Hi Shashi, I do not have a training peaks link, I am doing the data analysis myself. If your suspicion is that I am not doing the calculation correctly, I am pretty sure that I am. I am performing these tests on a rowing ergometer with a heart-rate chest strap, which records HR and power data every 1 second. I am very familiar with the technique and am able to keep a very consistent heartrate and power output over the full 90m period after warm-up.

Attached are HR and Power plots for two 90m workouts 2 months apart. Both exhibit approximately 3.8% HR drift and coincidentally, almost the same average heart rate of 143 (for the middle 60 minute “test segment”) – but the average power is 10W higher in the later test.

I can upload CSVs if you really want, but I have to do them 1 at a time and didn’t really expect anyone to dive into the data for me 🙂

Thank you for the link, I have read that thread and it’s getting at a slightly different issue. I am already seeing gains, just not in the way I expected! I was hoping that my data could help out others and that maybe someone else had experience with periodic testing and whether they saw AeT-HR improve first or power@AeT without shifting the actual AeT like I am seeing.

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[smarshall54]

smarshall54 on April 9, 2019 at 9:21 am · in reply to: Fat Adaptation and Water Requirements #20233

How would you go about even studying this?

Alpine environments are dry, but usually pretty cool so not a lot of sweat. Maybe one experiment comparing ultra-runners water intake at high/dry/cool location vs. a desert race vs. a hot/humid race to see how climate affects water intake. Maybe there is already research on this part?

Then you’d need two groups of athletes that were gas-exchange tested, split into fat-adapted and non-fat-adapted groups, and do some sort of treadmill test measuring power output during a long-duration activity with amount of water and calorie intake held constant for both groups.

To separate the effects of calorie intake and water intake on power output, you’d have to give the amount of calories needed for the non-adapted group to both groups, and the amount of water given should be the amount required by the fat-adapted group. So everybody has enough calories to support their metabolism, but not enough water for the non-adapted group.

Then if the hypothesis is correct, you’d expect to see the non-adapted athletes power drop off first since their water intake is limited.

weird confounding factor is that over-feeding the fat-adapted athletes might actually make their power drop off since the digestion of the excess carbohydrate itself requires extra water. I’m not sure how one might tease this one out.