I’m a big fan of the Tabata style cycling workouts. Well, maybe “fan” isn’t the right word. They actually suck, a lot, but in a good way. Because, I am pretty thoroughly crushed at the end, and I can feel the results pretty clearly when I doing them, vs. when I’m not.
In another excellent video by Dylan, he talks us through what makes a good HIT workout, as well as suggesting a few different types (spoiler, Tabata is one). Also, I’m sorry for the continued shilling for Dylan’s channel, but (like all good non-apologies, there is a but ;)) I really like them, and this is my site after-all ;).