%0 Journal Article %T Parkinsonian Rigidity Shows Variable Properties Depending on the Elbow Joint Angle %A Takuyuki Endo %A Toshimitsu Hamasaki %A Ryuhei Okuno %A Masaru Yokoe %J Parkinson's Disease %D 2013 %I %R 10.1155/2013/258374 %U http://dx.doi.org/10.1155/2013/258374