Ok I plan to adopt maffetone training the winter in a barry p format. I have discovered that previous barryp attempts I was running too hard so now I am using HR (180-age) and trying that. This is easy to do on the bike and run which I plan to do for 3 months. The questions I have is the swim which is by nature much different. I have seen improvements in my swim but I have done it from a mix of easy and hard sets and I don't think it taxes the body like bike and run does.
So do intervals on the swim affect or negate the benefits of the base training?
So do intervals on the swim affect or negate the benefits of the base training?