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Motor planning error in Parkinson's disease and its clinical correlates

Author

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  • Tsubasa Kawasaki
  • Kyohei Mikami
  • Tsutomu Kamo
  • Ryoma Aoki
  • Rumiko Ishiguro
  • Hiroshi Nakamura
  • Ryosuke Tozawa
  • Nao Asada
  • Yukinobu Hiiragi
  • Yoichi Yamada
  • Masahiro Hirano
  • Kazuko Katsuki

Abstract

This study aimed to investigate (a) motor planning difficulty by using a two-step test in Parkinson’s disease (PD) compared with age-matched healthy subjects and (b) the relationship between motor planning difficulty and clinical factors. The two-step test was performed by 58 patients with PD with Hoehn & Yahr (H&Y) stage I–IV and 110 age-matched healthy older adult controls. In the two-step test, the participants estimated the two-step distance with maximum effort. Subsequently, they performed the actual two-step trial to measure the actual maximum distance. We calculated the accuracy of the estimation (estimated distance minus actual distance). In both groups, subjects who estimated >5 cm were defined as the overestimation group, and those who estimated

Suggested Citation

  • Tsubasa Kawasaki & Kyohei Mikami & Tsutomu Kamo & Ryoma Aoki & Rumiko Ishiguro & Hiroshi Nakamura & Ryosuke Tozawa & Nao Asada & Yukinobu Hiiragi & Yoichi Yamada & Masahiro Hirano & Kazuko Katsuki, 2018. "Motor planning error in Parkinson's disease and its clinical correlates," PLOS ONE, Public Library of Science, vol. 13(8), pages 1-10, August.
    • Handle: RePEc:plo:pone00:0202228
    DOI: 10.1371/journal.pone.0202228
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