Can I count gallowalking miles in my mileage?

Do whatever you like. Race times are the only metric that matters.

Yes. Mileage is a measure of training load.

It might be helpful to note run & walk times so you can see how you are progressing. Lots of Garmin devices can detect both run & walk time for an activity. Look on the Stats page of the app.

No. You should list it as cross training.

Running volume is very different to total training load.

So 50 mpw week is the same "training load" in your book whether it's 10 mpw running 40 walking as 40 running 10 walking?

What does Galloway say?

if you're a data oriented person, into tracking trends and progress, you should be aware of both, and how that changes over time. And how that tracks with your progress.

But count the mileage however you want.

Personally, I'd feel dishonest if I told someone I was running 50 mpw, when it was actually 40 running and 10 walking.

I have a close friend who counts his walking mileage. He's very upfront about it. I pass no judgement and he's one of my favorite people in the world

If your heart rate during runwalk is the same as an elite who’s running it’s basically the same right ?

No. If that was true I would be elite for my age.

How is it not the same?

It's A measure of training load. Not the only one. 10 miles of walking is a greater training load than 5 miles of walking. 10 miles of running is a greater training load than 5 miles of running. 2 miles of walking and 10 miles of running is a greater training load than 0 miles of walking and 10 miles of running.

It's a very weak correlation.

I use a very reliable metric; Recovery time.

Because hill walking is perfect for basic cardiovascular health, but running is a very different skill set.

because it's not running, which is a specific skill. just like the elliptical, cycling, swimming and other forms of cross training are not running.

they can all add to what you're doing. but they aren't equal.

But it uses the same muscles .

So does sawing a log.

No, that uses your arms

You've obviously never sawn a log. Your legs have to stabilise your body.

Anyway. I think you're trolling.

You’ve obviously never ran

A man without arms can run. A man without legs can saw. They’ll both just be less effective than an able man.