Okay, about this time last year I inquired about the combat applications of Sanchin. Now, as I have an extremely basic understanding of the combat principles contained therein, I would like to ask of the conditioning aspects of this kata.

Sensei Shimabuku said Sanchin is the essence of karate. It is for fitness, and without fitness, how can you have karate? (Paraphrased)

One of my immediate questions is this: would weight/calesthenic training and aerobic conditioning the equivalant of Sanchin? The goals of each are, at least to me, the same.

Thoughts, insights, anecdotes, etc of those more experienced than myself are hereby solicited.