Anthony Garcia wrote:
If you want motive power or P = {F}*{V} then you would wish to measure
either the reaction forces of the Kayaker against the boat and/or the
tractive force of the boat (use a line with constant tension and measure the
velocity.)

If you want the forces on the paddle to generate force vs position and/or
time it will get much more complicated but not impossible. Try using strain
gages on the paddle shaft with the data synchronized with video. You can
(with much labor) get position, force and velocity.

Yes, this is exactly what I assumed needs to be done. We have the
hardware and software to do 3D kinematic video analysis, but I was
wondering if there was ever a simpler method devised.


There is software already in use that can provide many of the tools you
need. You may need to spend $$ for it though and the learning curve is
probably steep.

Which software is this? I'd appreciate a link or reference. There is
money to be spent on this... not infinite amounts, but some....

thanks,
Kieran