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  1. No Access

    Article

    Joint-specific disruption of control during arm movements in Parkinson’s disease

    The leading joint hypothesis (LJH) suggests distinct types of control (leading and subordinate) at different joints during multi-joint movements. Taking into account specific features of movements in Parkinson...

    Laetitia Fradet, Gyusung Lee, George Stelmach… in Experimental Brain Research (2009)

  2. No Access

    Article

    Submovements during pointing movements in Parkinson’s disease

    Velocity irregularities frequently observed during deceleration of arm movements have usually been interpreted as corrective submovements that improve motion accuracy. This hypothesis is re-examined here in ap...

    Natalia Dounskaia, Laetitia Fradet, Gyusung Lee… in Experimental Brain Research (2009)

  3. Article

    Open Access

    Origins of submovements in movements of elderly adults

    Slowness is a well-recognized feature of movements in aging. One of the possible reasons for slowness suggested by previous research is production of corrective submovements that compensate for shortened prima...

    Laetitia Fradet, Gyusung Lee… in Journal of NeuroEngineering and Rehabilita… (2008)

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  4. No Access

    Article

    Efficient control of arm movements in advanced age

    The present study addresses the influence of aging on the ability to regulate mechanical effects arising during arm movements due to the multi-joint structure of the arm. Two mechanical factors were considered...

    Gyusung Lee, Laetitia Fradet, Caroline J. Ketcham… in Experimental Brain Research (2007)