What is your current RHR?

[TheBeast1]

Really interesting.

Can't put a number on it but theres certainly many reports of reta increasing heart rate for folks. I guess its a case of how much your willing to tolerate and I assume some will get jt worse.

Raised HR is one of the things that the studies highlight. That's just one of the ways reta increases TDEE. Gotta get that extra energy one way or another.

On a regular cut at cruise levels, it's not a big deal at all. Supposedly after a few months it drops but I have very experienced that.

OH and before I forget:
Do not take 15mg of ivabradine all at once.

The correct dosing is 7.5mg in the morning and in the evening for a total of 15mg a day.

I had a minor scare of chest pain that occurred at 1am today. Very weird sensation and not pleasant. Made my anxiety go way up. My kardia 6l and my smartwatch didn't pick up any arrhythmias. The kardia 6l I pay for the pro which will pick up all types of arrhythmias and it still said I was fine. Ended up going to an urgent care where they ran an EKG and got an all clear from them.

Most likely the sensation I am feeling is the heart adjusting to the ivabradine going from 15mg all at once to 7.5mg across the whole day and night or some costocondritus. Leaning towards the 2nd one once I pop an ibuprofen to see if it goes away.

As of today I am taking 7.5mg of ivabradine in the AM and now PM. My RHR is now lower and I presume this will go away in time.

 

[thejumpingsheep]

End of Last Cycle: RHR 57-62
320mg T-C
160mg Primo
100mg Tren
100mg Deca
3iu-4iu HGH 4xWeek

Cruise about 2 months later: RHR 68-72
75mg Test-U
50mg Tren
CJC DAC 1mg
Reta 10mg

So its probably Reta + CJC doing their thing but likely more due to Reta. 3iu-4iu EOD HGH would get me a little above 400 IGF. I dont think CJC will get me that high.

 

[RockyP]

RHR of 58 on 5 mg Reta weekly. Was as high as 65 or so at one point but has come back down to high 50's.

 

[Badsanta]

I've been on Reta for about 6 mos. I have finally gotten to 6mg. Probably not the most optimal use of Reta, but my RHR is 68. According to the Garmin watch.

 

[RockyP]

I've been on Reta for about 6 mos. I have finally gotten to 6mg. Probably not the most optimal use of Reta, but my RHR is 68. According to the Garmin watch.

Why not the most optimal use? Theres a dose response relationship up to about 8 mg. I’ll be going from 5 to 6 soon as well. About the same timeframe as you from start to current.

 

[TheBeast1]

For you guys with rhr in the 50s and 60s, how much cardio are you doing each week?

 

[RockyP]

30 mins fasted LISS and at least 10k steps. Avg HR during training is usually 115-120+

For you guys with rhr in the 50s and 60s, how much cardio are you doing each week?

 

[Badsanta]

Why not the most optimal use? Theres a dose response relationship up to about 8 mg. I’ll be going from 5 to 6 soon as well. About the same timeframe as you from start to current.

I guess what I meant is that I probably should have increased dosages sooner. I should probably be at 8.

 

[Badsanta]

30 mins fasted LISS and at least 10k steps. Avg HR during training is usually 115-120+

I should increase my HR for my cardio…

 

[thejumpingsheep]

For you guys with rhr in the 50s and 60s, how much cardio are you doing each week?

Uh... about 10-15 minutes 3-5 times a week give or take, always before a workout, with increasing intensity as my body adapts. Im old and I get injured a lot more often, so its not as easy but as long as my HR is up, im good with it... Damnit now you have me reminiscing... So frustrating not being able to do what I used to... Havent sniffed a 6 minute mile since like 15 years ago. That crazy endorphin rush you get at about 1.5 miles was the most amazing feeling especially if you can trigger it during sport competition... man it makes me sad thinking about it. Enjoy it while you can young fellas.

But I will say that I have always worked out using the "super set" method. I learned to do that back in high school because we didn't have a lot of time to work out and it just stuck ever since. Sometimes its more taxing than actual cardio especially on dead lift or leg press days. Those always take a lot out me.

This is probably why my endurance is good despite not doing tons of dedicated cardio.

 

[TheBeast1]

30 mins fasted LISS and at least 10k steps. Avg HR during training is usually 115-120+

Uh... about 10-15 minutes 3-5 times a week give or take, always before a workout, with increasing intensity as my body adapts. Im old and I get injured a lot more often, so its not as easy but as long as my HR is up, im good with it... Damnit now you have me reminiscing... So frustrating not being able to do what I used to... Havent sniffed a 6 minute mile since like 15 years ago. That crazy endorphin rush you get at about 1.5 miles was the most amazing feeling especially if you can trigger it during sport competition... man it makes me sad thinking about it. Enjoy it while you can young fellas.

But I will say that I have always worked out using the "super set" method. I learned to do that back in high school because we didn't have a lot of time to work out and it just stuck ever since. Sometimes its more taxing than actual cardio especially on dead lift or leg press days. Those always take a lot out me.

This is probably why my endurance is good despite not doing tons of dedicated cardio.

Damn it wtf am I doing wrong then?

I do literally the exact same amount of cardio but I've recently been pushing it to 15 to 20 minutes 5 days a week.

And this isn't slow cardio at all. I'm keeping an 8 minute mile pace. When cutting I can do 7 minute miles but settled on 7.5 minute as a happy medium. Yet my HR is always on the 70s and with reta stubbornly in the 80s to 90s.

Either way, I'm going to be dropping reta for good and going back to tirz. The heart rate increase is just too much and puts me at the upper end of the ceiling. I really do not like having it be this high.

To be fair I only started doing cardio to this extent when I started doing this "hobby" back in 2023 so I may need more time. You sound like you've been doing physically active most of your life .

Edit: wanted to add that if you try ivabradine and experience chest pain that this appears to be a normal side effect of the drug that should disappear after a week. Obviously take precautions and make sure you're actually OK but that you could get a clean bill of health and be alright.

 

[JK1]

Raised HR is one of the things that the studies highlight. That's just one of the ways reta increases TDEE. Gotta get that extra energy one way or another.

On a regular cut at cruise levels, it's not a big deal at all. Supposedly after a few months it drops but I have very experienced that.

OH and before I forget:
Do not take 15mg of ivabradine all at once.

The correct dosing is 7.5mg in the morning and in the evening for a total of 15mg a day.

I had a minor scare of chest pain that occurred at 1am today. Very weird sensation and not pleasant. Made my anxiety go way up. My kardia 6l and my smartwatch didn't pick up any arrhythmias. The kardia 6l I pay for the pro which will pick up all types of arrhythmias and it still said I was fine. Ended up going to an urgent care where they ran an EKG and got an all clear from them.

Most likely the sensation I am feeling is the heart adjusting to the ivabradine going from 15mg all at once to 7.5mg across the whole day and night or some costocondritus. Leaning towards the 2nd one once I pop an ibuprofen to see if it goes away.

As of today I am taking 7.5mg of ivabradine in the AM and now PM. My RHR is now lower and I presume this will go away in time.

I took 10mg last night and it dropped my lowest rhr by 11 and better average. Never had that before even though I went through a series of smaller dose adjustments and combination/ timing of nebivolol and ivabradine usage - all evening/ before bed.

I was aware it's 7.5mg BID and its probably sensible! What is didnt want was too much interference with exercise though which is why I have avoided am dosing. Could still try it. I probably won't go 15 at once.

Sorry to hear about your chest pain. I am guessing costocondritus can be felt in some as heart/deeper chest pain. I have had plenty of rib related injuries but I've known its rib related.

 

[JK1]

End of Last Cycle: RHR 57-62
320mg T-C
160mg Primo
100mg Tren
100mg Deca
3iu-4iu HGH 4xWeek

Cruise about 2 months later: RHR 68-72
75mg Test-U
50mg Tren
CJC DAC 1mg
Reta 10mg

So its probably Reta + CJC doing their thing but likely more due to Reta. 3iu-4iu EOD HGH would get me a little above 400 IGF. I dont think CJC will get me that high.

Really interesting data and to see what your running. Seems plausible that most of the RHR change can be pinned on RETA.
Out of interest, did you ramp up to 10 mg, or had you already been at a higher dose before that?
Not to take it off topic too much but your HGH EOD approach is that driven by a specific reason?
One thing I haven’t done myself is get an IGF-1 test. Where I am it’s not particularly accessible, seems much easier in the US.

 

[thejumpingsheep]

Really interesting data and to see what your running. Seems plausible that most of the RHR change can be pinned on RETA.
Out of interest, did you ramp up to 10 mg, or had you already been at a higher dose before that?
Not to take it off topic too much but your HGH EOD approach is that driven by a specific reason?
One thing I haven’t done myself is get an IGF-1 test. Where I am it’s not particularly accessible, seems much easier in the US.

Yes, a year prior to Reta I was already on max dose Tirz. Clearly my body "remembers" the Tirz and is dampening the Reta hunger suppression. That said, even though I get hungry and my stomach growls in protest, I definitely cannot eat as much during a meal. So Reta is working but its not like Tirz in terms of suppressing hunger.

HGH EOD is because I hate pinning... Nothing deep about it and Im sure its not optimal. I am no competitor and Im an old dude, so I dont need optimal. I recently started CJC +DAC (weekly) to see if that will get me to the high range of normal and if it helps with sleep thats a huge bonus.

 

[thejumpingsheep]

Damn it wtf am I doing wrong then?

I do literally the exact same amount of cardio but I've recently been pushing it to 15 to 20 minutes 5 days a week.

And this isn't slow cardio at all. I'm keeping an 8 minute mile pace. When cutting I can do 7 minute miles but settled on 7.5 minute as a happy medium. Yet my HR is always on the 70s and with reta stubbornly in the 80s to 90s.

Either way, I'm going to be dropping reta for good and going back to tirz. The heart rate increase is just too much and puts me at the upper end of the ceiling. I really do not like having it be this high.

To be fair I only started doing cardio to this extent when I started doing this "hobby" back in 2023 so I may need more time. You sound like you've been doing physically active most of your life .

Edit: wanted to add that if you try ivabradine and experience chest pain that this appears to be a normal side effect of the drug that should disappear after a week. Obviously take precautions and make sure you're actually OK but that you could get a clean bill of health and be alright.

No idea why its not working as well for you but you are correct. Ive been at it a long time and I was in good athletic shape in high school to mid 20s, and probably a near peak natty lifter by early to mid 30s.

All in all I probably have about 22+ years of athletic training under my belt with many ups and downs due to injuries.