The most obvious thing is having a good environment. If you are doing serious HIITs, you either need to be at a track or on a training device, unless you feel l

The most obvious thing is having a good environment. If you are doing serious HIITs, you either need to be at a track or on a training device, unless you feel like playing in traffic. Fitness equipment is not the goal, fitness is, and equipment is a good way to get there.