In June 1970, Arthur Jones, the father of High Intensity Interval Training, published the ‘Ideal Workout’ in bodybuilding magazine Muscular Development. In the article, posted below, Jones set out the importance of vigorous training as well as promoting his new brand of exercise machines. Little was Jones to know that his new training machines would soon pop up across the US as America fell into a Nautilus craze.

Just what is the ideal workout?

At this point the answer to the question is not clear even to me, not even after 20 years of keen interest, involvement and research on my part, but at least this much is clear; we are now a great deal closer to the answer than we were as recently as a year ago…at least that’s some progress.