Target resting heart rate on replacement T4 and T3 - Thyroid UK

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Target resting heart rate on replacement T4 and T3

Wired123 profile image
7 Replies

Is there any guidelines or recommendations of target heart rate for hypothyroid patients on replacement T3 and T4?

Or even just on T4?

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Wired123
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7 Replies
SeasideSusie profile image
SeasideSusieRemembering

I imagine there is no target heart rate other than a "normal" heart rate which is anywhere between 60-100.

Wired123 profile image
Wired123 in reply to SeasideSusie

My Endo says 70bpm, looking for some research to back it up.

I would think if someone had a resting HR of 100 they would be over medicated and need to reduce their dosage.

I’ve updated my opening post to make clear I’m talking about resting HR.

SeasideSusie profile image
SeasideSusieRemembering in reply to Wired123

Dk123

Endo is wrong, it's not the same for everyone it depends on the individual what their resting heart rate is and it's said to be between 60-100

From British Heart Foundation bhf.org.uk/informationsuppo...

A normal heart rate is between 60 and 100 bpm while you’re resting.

However, it will vary depending on when it’s measured and what you were doing immediately before the reading.

Miffie profile image
Miffie in reply to SeasideSusie

As I got older my heart rate increased as did my blood pressure so I agree with you. My increase has nothing to do with my level of medication.

in reply to Miffie

As you age "in General" your maximum HR is reduces Generally said 240 minus your age but there are some that buck the trend as we tested a guy that had raced in the common wealth games and was in his forties yet was still hitting 240's.

Could be he had a smaller heart so needs to be busy to keep up but also easier to work as less mass.

I have a Bigger heart than normal why mines so slow.

Miffie profile image
Miffie in reply to

Interesting, no one mentioned that when I had months of heart investigations done a few years ago. In fact the suggestion was that my murmur was the result of an enlarged left ventricle.

in reply to Wired123

Your Endo is a Dinosaur! Resting HR is controlled by the body and it's needs not something like a machine. Smaller heart has to beat faster to do same work as a larger one.

Much in the same way as an engine.Small higher idle and max revs along with revs more to say do 70mph while a big engine much lower idle speed less max revs and @70mph doing far less.

When i was younger my resting was 20's to low 30's and max around 190's

Much like Miguel Indurain Spanish Cyclist that won Tour De France so many times

Big Heart big Lungs resting was 20's.

Another at the time Claudio Chiapucchi Italian guy his resting and max was higher smaller lungs and heart also.

So it's all Relevant to the person.

Plus resting HR is effected by many things ie how tired/have recovered if exercised/Going down with an illness and so much more

When was Coaching and i Raced used to work with pulse monitors it's a way to see how your body feels

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