Figure 2
From: Upper limb impairments associated with spasticity in neurological disorders
A typical movement trajectory of rapid elbow extension generated by a normal and a stroke subject. Normal: A1 Position; B1 Velocity; and C1 Acceleration. Stroke: A2 Position; B2 Velocity; and C2 Acceleration. Circles in B2, C2 represent zero-crossings in the acceleration. MT: movement time, AROM: active range of motion, Vp: peak velocity, Ap: peak acceleration, TVp: the latency to peak velocity, TAp: the latency to peak acceleration.