Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement

<div>Angle-torque characteristics in passive flexion (solid line) and passive extension (dashed line) of left upper limb in one PD patient (UPDRS rigidity score = 3). The data included five cycles in (a) angular velocity 60°/s and (b) angular velocity 120°/s.</div>

Parkinson’s Disease

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Figure 2

Figure 2: Parkinsonian Rigidity Depends on the Velocity of Passive Joint Movement 