Well, I've dabble briefly in the koryu of the Uchinadi, so I will try to give some answer to your question.
First, I'm going to be a bit nit-picky; karate isn't really Japanese, but Okinawan. yes, Okinawa is currently under the Japanese flag, but, in terms of martial arts, it must be counted as a separate entity. Japan does have it's own forms of karate, though.
Anyway, the Koryu of Okinawa in some ways resembles current CMA training. Obviously, certain types of training will not be in use, as time constraints and the ever-present need to pay the rent tend to squeeze out different aspects of the instruction.
With all fairness, it doesn't follow that one could/should try to draw a parallel between "old world" training and modern day training for two different cultural styles.
So, to answer your question: kinda.
Okinawan Karate - Isshinryu
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"Sanchin is the essence of karate. After all, it is for health, and, without health, how can one have karate?"
- Tatsuo Shimabuku, Founder of Isshinryu Karate, on the importance of Sanchin Kata.