Dr. McDougall's Online Discussion Board

For those that like HIIT but looking for something different, there may be another way. I don't know if Maffetone would approve, since a kettle bell swing still seems like it would hit mainly the anaerobic fibers, but it may be an interesting approach some might want to experiment with.

http://www.strongfirst.com/use-sfg-principles-maffetone-method-improve-client-results/