Exercise effect on tsh, ft4

[Emits]

Used to run before diagnosis but since then 7 months ago I've just run maybe 3 times a month. If I start to exercise, running, 3 weeks before blood tests. Would that effect the levels of tsh, ft4 on my bloodtest? If so increase levels or decrease levels?

[Clutter]

Emits,

I'm not aware that exercise affects TSH and FT4. I wouldn't adjust dose until you have your blood test results. It is said that exercise can deplete T3 which may mean exercise recovery takes longer. If you feel that is happening you may want to order a FT3 test via thyroiduk.org.uk/tuk/testin...

[Emits in reply to Clutter]

Thank you. I'm not adjusting my dose. I just wonder if anyone knows of the levels of ft4 in a blood test will increase or decrease of I start to exercise before the next test.

[JS33]

I went back to running and it resulted in needing more NDT. I was OK with decent BP and pulse ,decided to go running, got back and an hour late, BP under 90/60 and pulse dropping down to 53. I have been a couple of times on a higher dose and the drop wasn't as bad but was still there. Doing some light weights didn't have the same effect.

[jamesal0 in reply to JS33]

I run 5k, swim 1k a couple of times per week each and do light weights every night for 30 min. And yes always take an extra 30mg NDT prior to run/swim and eat something chewy. Otherwise you will go low thyroid and perform like crap. NDT is a bit of a cheat really. Get it right and you can really hammer on it - it feels like your lungs are twice the size. You have to take 30mg about 15- 20 minutes prior to exercise - so you have absorbed it and have plenty in the blood.

What you were describing was a low NDT (T3) state. You need to take heaps more NDT compared to Levo. The low pulse is the real give away. I bet your resting temp is 34.7 too.

Also I have a pet theory. Once our bodies get used to NDT they don't bother converting T4 a great deal, this is because there's always plenty T3 available and they are lazy. Hence the need to take higher comparative doses of NDT vers Levo. You are just living on the T3 part of NDT and most of the T4 is being excreted.

[Emits in reply to JS33]

Ok, interesting. I'm only on levo so I can't adjust my dose that way.