There's a lot ofcool stuff in this video. The idea of lifting weights with the focus on "brain training" rather than "muscle training" isn't the first thing that comes to mind for martial artists. Obviously you can see Shioda Sensei's increase inflexbility from 3:20 to 4:44 after doing just 15 reps of leg exercise. This is strange because you usually think of a muscle getting more tense after usage rather than relaxed. I can see alot of usage for that for ageing athlets as well as the whole idea of "being relaxed". I also find it quite intereseting that you see not only both the trainer and Robert John Sensei's whole body really getting into the motion of the exercise (for example 12:15) and getting more "extension" into it to really get those deep muscles. In particular you see Mr. John at 6:45 getting his upper chest into a motion of the lower body. The pushing off awall with a connected vs unconnected body at 16:00 is neat as well. This is a great video!
