Running to HR zones

[Danielj1]

10.5 miles done this morning in just under 1.5 hours using a Garmin HR watch to keep in aerobic HR zone.

Boy did this help and enabled me to ensure I kept at a relaxed paced and not hopefully put undue stress on thyroid hormones.

I will continue now to always run to HR zones and see if this enables me to keep TSH under control with a more strenuous training plan.

Having upped dose to 75 from 50 over the past week i have had to take levo first thing rather than late at night to have a chance of getting to sleep - extra 25 feels like 3 double expressos for the first few hours after taking them - raised HR etc.

I now realise when taking 50 I should have always kept to mornings only.

Some many variables to get right.

I will take a blood test next weekend and aim to get a better TSH reading than last time.

Is 2 weeks enough for higher dose to impact TSH?

[cjrsquared]

No due to the long half life you need a minimum of 4 preferably 6 weeks between a dose change and blood tests. Remember that in order to compare blood tests over time you need blood drawn at the same time of day and the same length of time after your previous dose.

[greygoose]

How is a more strenuous training plan going to keep your TSH under control? And why would you want to? The TSH is irrelevant once you are on thyroid hormone replacement. It's the FT3 that is important. And, just two weeks into 75 mcg, I cannot imagine that your T3 is high enough to support a strenuous training plan. You're more likely to make yourself more hypo.

And, no, two weeks is not long enough for the TSH to react to an increase in dose. The TSH moves very slowly, and is pretty useless for showing thyroid status. Two weeks is not long enough to have an effect on your FT3, either.

[Danielj1 in reply to greygoose]

Grey goose, I will wait a little longer then before the next blood test. I love running especially longer distances - if I could go back to marathon running I would ...

[greygoose in reply to Danielj1]

I love wearing stylish clothes and high-heeled shoes, but this disease means I can't anymore. C'est la vie.

[Danielj1 in reply to greygoose]

Lots of letting go of stuff along the way is par for the course I am coming to realise - some things harder to let go of than others lots of empathy needed all around

[Danielj1 in reply to Danielj1]

Idea of lower heart rate running is to reduce metabolic stress to a minimum....let’s see as they say

[greygoose in reply to Danielj1]

It may reduce metabolic stress, but do you have the right levels of T3 to support it? Because over-exercising will lower your levels.

[Danielj1]

I certainly did not at 50 - fingers crossed at 75 things will be different. If not, then plan B whatever that is .