Detailed sources on modern heavyweights' training or nutritional regimens?

As documented by contemporary reporting (and noted on this board unnumbered times), Marciano's training regimen was pretty pedestrian, something anyone could do and hold down a 30 hour a week job.

 

I have a friend who was 7-2 as an amateur boxer.
Made a pilgrimage to see Joe Frazier on his motorcycle, apparently had some memory loss...
But he read a biography of Marciano & told me Rocky would try any plan or idea he heard about.
Although other sources spoke of its intensity, maybe it was less than popularly imagined...

 

Bump

 

@cross_trainer Evander Holyfield did gymnastic tumbling later in his career for balance he didn’t specify when exactly. EH also worked with Dr Yessis who you might know about he is most well known for pylometrics which I’ve seen listed in multiple descriptions of EH’s various workouts. At 190lbs Evander was described as running, doing weight circuits with minimal rest then running again. I don’t have a source for this but Evander gives me the impression of someone who didn’t spar a lot. This is just a bit of tin foil hat talk on my end - Recently I read a EH quote that goes along the lines of “I loved the boxing training just not the actual boxing” surprisingly VERY little footage of EH sparring despite the huge profile he had, there’s the Tua rounds - Ruiz in 2011! And 40 something seconds of another guy he’s working with. So from 1984-2011 we have about 20 minutes of sparring footage.

 

Holyfield sparred between weightlifting sets to keep his heart rate up, there's a sports illustrated article about it, he would spar to get his heart rate to 180-200bpm and then bench press

Not letting your sparring footage out is smart, if it was even recorded in the first place

 

He definitely in an interview talked about sparring towards the end Andy Ruiz and he knew it was time to quit.

 

Holyfield should no longer be considered modern…by awhile now

 

Odd that this pedestrian workout resulted in arguably the best stamina shown from any heavyweight champ.
“I'd run on the golf course for about three miles. Then a quick breakfast, then into the gym for an hour and a half of training—sparring, bag punching, speed bag, skipping rope. Then in the evening, just cool out.”- George Foreman
Seems like a pretty normal way of working out and not beating up ur body. This idea that anyone should run more than 3-5 miles a day is stupid. It’s hell on the body for no gain.

 

There are regular joe/jane soccer dads/moms who run high mileage per week for decades, without wrecking their bodies -- I know some of them. I think some people have joints built for it.

 

They’re not training for a boxing match they’re training for marathons or long distance running. Which is fine. Those soccer moms and dads also aren’t going back into the gym for sparring, pads, drills, bags etc. u need to keep ur strength up and running more then 5 miles a day seems counter productive to that.
I have no issue w running a lot it’s a fine work out if done right

 

I remember seeing on one of the pre fight segments that he was weight lifting too for his heavyweight run

 

"roadwork" isn't a great idea because of the impact, running on a treadmill is more forgiving on the joints and you can't cheat when it's set on a speed vs running at whatever pace

 

You’ve got a point but that’s down to a mindset if you are running you run hard because you’re trying - no treadmill will fix your head.
Long term also a treadmill isn’t good for your knees if that’s all you do because of your relationship with the floor think about what’s going on the floor is moving you.
Best benefit for me I think it’s great that you can run or sprint an incline without being limited by the length of a hill.

 

You lose interest in looking up training routines once you realise that with good, proper training all the top guys basically do the same simple things overall - usually with some gimmicky fad that's specific to the era

Also, on the old timers and running. What they would do is run a longer distance once or twice a week. Even older timers would mix long distance walking with some jogging and sprints, which is why some of their listed distances seem insane. As training routines became more periodized, they would spend a set amount of time (e.g. two weeks) solely on longer distance stamina work, which still occurs today as it works and is balanced (e.g. GGG). Also, people massively overestimate the pace boxers run at. Even in clips of Sanchez, an elite of the elite in terms of stamina, his pace isn't exactly soul destroying.

The problem is when the Bert Sugars of the world hear a fighter did 12 miles (of what?) at one point and immediately extrapolate that Classic fighter X must have run 12 hard miles 365 days of the year, which made them tougher and harder working than the 'new guys'. Old fighters weren't stupid and weren't work mules. They knew how to train depending on their schedules and bodily condition.