I have been was thinking on this today as I read a good artical about "cardio" with the great example of Lance Armstrong. Nothing new but it is interesting to realize that it is primarily the efficiency of the MUSCLES rather than the cardio respiratory Vo2max that really makes you "fit" at a certain movement. So you have the guy who can be a top finisher in a marathon and yet get totally gassed doing a short ocean swim. Or be Lance with one of the highest Vo2max ever recorded but get killed in the marathon because the muscles are not efficient in that movement pattern and make demands on the system that even the greatest heart and lungs cannot overcome.
Thus the wisdom of Crossfit for those who take part in the WOD you really get an amazing spectrum of preparation for so many things...even if critics may say jack of all master of none.
I have always been a big fan of the nordic track skiiers. (if you can find one in good condition) If you max out the stride you are really working all the big muscles in the body through a huge range of motion and it seems to carry over better to other activities. I seemed to have pretty good newbie endurance on the OC-1 from using it even thought with my weight my boat is like a damn submarine plowing through the water at 5mph. So here are my novice observations, please add your experience and what experienced OC-1 guys do on the dry land to excel and keep the body healthy.
1) Cardio crosstraining: Nordic track, Concept II, or kettlebell snatches.
2) Shoulders: External rotation, YTWL drill and band pull-aparts for rotator cuff
3) Back: I have no idea. I have been doing Zercher squats, deadlifts and sandbag carries for years, and back is strong. (If I stopped these I would lose weight and probably go faster.) I imagine good paddling form is key here, though looking at JRs photos he seems more rounded and folded over than just about anyone on the water.
4) Other? Pullups and rows?
There are some interesting paddling specific training drills on Rambos site, check it out. Thanks for any thoughts.