I have heard of the One Lift a Day method, described here by bodyweight/movement/gymnastics expert Ido Portal:
after their technical judo workout, the coach will name one exercise and one exercise only, and the trainees will go on to perform 7-12 sets of this exercise. One day it will be squat (5 rep range is optimal here), the next pull ups hanging from their Gi (Kimono - for added grip benefit) and the next will be deadlifts, etc...
Any further detail on that program (who used it, specific implementation) would be greatly appreciated.
I have heard of judo athletes on the national level A) doing no resistance work at all, B) doing a fairly diverse set of low-rep, high-weight barbell exercises that varied week-to-week, and C) doing high-rep sets of various barbell exercises that did not change.
I have also come across elite BJJ players who use A) Olympic-lifting-based programs:
and B) very diverse, CrossFit-plus-personal-trainer style workouts that involve wearing a snorkel:
Finally, I have also seen this training clip of Soviet Greco-Roman wrestlers, which involves Olympic lifting as well as kettlebells and basic gymnastics (I hear they also squatted like maniacs):
My examples only scratch the surface--they have almost no detail about the specific programs, why they're designed a certain way, and so on. I'm still very interested in more answers! :)
Update - the Brits
I found a PDF that details the British judo team's strength & conditioning approach for Beijing. The key components are on one slide:
- Press-ups, dips, handstand pushups for warmup
- Deadlifts and squats for strength
- Weighted pull-ups, various barbell rows and presses
- Olympic lifts and jump squats (eek) for power, as well as box jumps, drop jumps (I've heard these can be injury-prone), and medicine ball throws
- Rotational work called "Gunthers" and other ways of moving a plate around the body
- Get-ups (I assume Turkish) and farmer's walks for grip
- Barbell rotations (these seem to be popular as a grappling-specific exercise in MMA, BJJ and judo)
Update - Research by John Amtmann, EdD, and Adam Cotton (Montana Tech of the University of Montana)
Amtmann and Cotton have a PDF paper about how judo players should build strength. Mr. Amtmann has a B.S. in Health/Biology Education, M.S. in Cardiac Rehabilitation/ Exercise Science, and a doctorate in education with a major in educational leadership.
Exercises that enhance the strength of all major muscle groups combined with lifts done in a ballistic manner. These lifts include the Olympic lifts and their supplements (power clean, power snatch, hang clean, hang snatch, and high pulls) and other lifts using an explosive phase, such as medicine ball throws, weighted squat jumps, and weighted split jumps.
Neck training should be a special consideration for all grappling athletes. Judo athletes are encouraged to throw their opponents onto their backs with high force. Because of the nature of grappling and combat sports, the judo athletes are sometimes at risk for cervical
injury because body positions of the athletes can become quite contorted.
The paper also recommends pretty much every grip strength exercise you've ever heard of.
Update - Iranian wrestlers
See this video to see the Iranian Olympic wrestling team work through a variation of hang cleans/barbell rows, plus plyometrics. I'm sure their routine involves more.