Hi dud.roberts. Welcome to our Guitar Tricks forums.

Learning guitar is a 'marathon' too, so you're really swapping one for another really. Should be a natural fit!

Empathise with you. When injury and age caught up with my running days (distance, and I loved it) I switched exclusively to cycling. I'd loved it equally, and so concurrently persisted with it over the years & still have the passion for it. But injury exacerbated by the deterioration which age brings imposes its restrictions there too.

Look after that body. Enjoy your guitar adventure. Cheers.

manXcat