A number of years ago I invited Kay to the studio to present her work to the studio members. What a great decision that was. Katy's book Movement Matters has made a deep impression on my work and those with whom I work with. See if you can spot Andy and I at this event!
Mark said to me a number of weeks ago - "when one does a large volume of heavy or high intensity work it provides a background of endurance training with a foreground of strength and power. Also, lots of short intervals add up to endurance work over the course of the workout"