In this video you can have a look how Mitch prepares for the cardic and circulatory load during his snowboard runs when there is no snow around. It’s easy to copy!
For the ones who wanna know more:
Interval training stimulates different metabolic adaptions of your body. Studies demonstrated improvements in muscle oxidative potential, muscle buffering capacity, muscle glycogen content, as well as highly elevated aerobic endurance capacity.
However, few studies provide results that can be used to generate definitive guidelines for choosing specific work-to-rest ratios. That’s why Mitch uses the approximate time he needs for his snowboard runs when riding a big mountain line.
Remember though that it is important not to rest too long in between your intervals. Mitch for example bikes full throttle for 1.5 minutes and than rides with moderate speed for 7 to 8 minutes before starting with another high intensity unit.
P.S. Such intervals are apperently a very useful method for fat loss. I might get deeper into this another time…
Source: T.R. Baechle, and R.W. Earle, 2008: “Essentials of Strength Training and Conditioning.” National Strength and Conditioning Association.