data = ankleoffsetPiG_data(data,sdata) adds the Plantarflexion and Rotation offset computed from a static (anatomical pose) trial to a given dynamic (movement) trial. ARGUMENTS data ... Zoo file representing dynamic trial data sdata ... Zoo file representing static trial data RETURNS data ... dynamic trial data with offsets appended to file NOTES - This is a likely source of error between PiG and biomechZoo. Further work could explore why the two estimates sometimes differ