This video examines the way Baki trains in the manga and anime. Baki is about the most over-the-top anime in terms of its depiction of training and fighting. This is a guy who can contort the muscles of his spine to look like a demon's face and who carries entire gyms up mountains.
While we can't precisely repicate the Baki workout then, we can ask what the most badass training methods would be for a martial artist/grappler. We can look at the spirit of Baki training and create a routine that will make you feel like a character from the series AND seriously level up your strength, stamina, and speed.