How long does zone 2 take to lower your resting heart rate?

[aawarve1]

If I do 3 hours of zone 2 a week, and my RHR right now is 69, how long does it take to lower? (I'm doing incline treadmill walking with a backpack on. One hour straight no breaks. Average heart rate 130bpm is my goal)

But to lower the does it take weeks? Months? Years?

It's hard to find even a ballpark on this online. I just want to know what to expect and what is a good improvement.

My guess is at 3hrs a week, it may drop by about 3bpm a month. And maybe slowing down to 1bpm a month once it's lower than 60. That is totally just a guess though.

[LZeeW]

Hello @aawarve1 and welcome to the Community.  I moved your post to the Get Moving forum, a better fit for your question.  There isn't an exact answer for your question.  You might get some insight from this article.