5 mile run + 7 sets of HIIT
This morning I ran 7 miles total, including the warm up, running, HIIT and the cool down periods. This is my secret to build speed and endurance (read the 2nd set of HIIT towards the end).This is in preparation for a Half Ironman in the middle of September 2009.
Secret for speed and endurance.
Have fun training!!
Amilcar





