I have been running MAF miles for the last month after It was recommended to me by a friend who had a heart attack at 34. She did 12 months of MAF miles to get her back to where she was around the 6 min per KM mark.
Today I did a speed test over a KM to see if a month of MAF miles had paid off, and it really has. Improving my aerobic ability has taken 2 mins for the KM off my time.
More work to do but I have found it really helps.
It maybe worth a look 👀 ❤️