This is from my Blog -
As a Personal Trainer and Standup Paddle Surfer, I think that
Standup Paddle Surfing is one of the best core training exercises one
can do. Period. Unfortunately, conditions must be good to even get out on the water. Too much wind, no waves, or even being in the winter in the Midwest can really put a damper on your paddling. So how do you train for the sport when not doing it? I’m going to give you 3 exercises that can help. Each
one is very core intensive and requires quite a bit of balance,
coordination, flexibility, and strength- all which are essential for
becoming a good paddle surfer. They can be dangerous – perform at your own risk!
1. Indo Board + TRX Atomic pushup (or Tuck and Pushup). This
exercise can be made more or less difficult by starting on the floor
without the Indo Board, but for advanced users, the Indo Board really
makes all the difference in difficulty level – It’s Tough! It works every part of the body, but primarily your core, chest, triceps, and shoulders. It’s a great total body exercise for paddling.



2. TRX Row – Great for developing the upper back/shoulders/biceps. The
more horizontal you get, the more difficult it gets, and adding the
stability ball to stand on makes it much more difficult as well. Be sure to squeeze your glutes and keep your body as straight and tight as possible. - Need a ball? SPRI ELITE XERCISE BALL - 65cm - Red


3. Indo Board Squat + Shoulder Press. This exercise is great for developing balance, legs, and core muscles surrounding your spine. It shouldn’t be done with too much weight, balance and core stability is the objective. Beginners can start with the Indo Flow cushion, and eventually go to the actual roller. This
exercise causes your nerves to “connect the dots” between your brain
and your toes and thus fires more muscles to balance and coordinate the
movement of a simple squat. It helps to train your muscles
in an unstable environment just like when paddle surfing so they can
adapt and “transfer” what you learn on the Indo Board to your Paddle
Board.