HITT intervals (just starting out)
It appears that my training is lacking in HITT work. Although I push myself once a week I'm never doing it in a structured format. I'm going to be using my Garmin to setup some timed intervals. I plan on doing the "work" part of the interval as high as I can stand for about 30 seconds and then rest for 1 min and then repeat. My question is, how long should the "rest" period be? Should I wait until my HR lowers to a certain percentage of MAX HR or just use a timed interval? What would be a goal for my "work" portion of the interval, 30sec, 1,5,10min? I realize everyone is different so I'm thinking there may be some common wisdom as per percentages etc.