While the Wave may seem to be the same as interval training, it is much more. In interval training, either the distance or the time is set and does not change, while in Wave training, the times and distances both change. In interval training, the hard pace is usually above your normal fight pace. While, in the Wave, the hard pace, regardless of the distance, is always at the fight pace you have set as your goal. In the Wave, you learn to pace yourself to be able to hit measured distances consistently in specific times.
The objective of interval training is to better your ability to take in oxygen and deliver it to the working muscles., which then develop a higher tolerance to the buildup of lactate, which helps to forestall the effects of hitting the wall when muscles begin going anaerobic, working without oxygen. However, the objective of Wave training is to learn the discipline of pace without ever going anaerobic.