Adaptations to the body, morphological or biochemical, are talked about in forums all the time but the truth is in both testing and actual performance. I find it interesting the obsession with adaptations with so little evidence of what we are doing is actually causing the improvement. We are doing to get . I find the time, power, density, and mode theories of several coaches to be more useful, but I think we should read the research to confirm our gut feelings. The adaptions are interesting, but many good coaches come from backgrounds without physiology and anatomy but understand the training process. Vertical Integration was designed by a coach with a political science degree and insurance underwriter background. Risk analysis, history, and of course cause an effect are obvious key elements. My point is that results are based on standards and improvement, not interesting physiology.