RT Journal Article
SR Electronic
T1 Movement Smoothness Changes during Stroke Recovery
JF The Journal of Neuroscience
JO J. Neurosci.
FD Society for Neuroscience
SP 8297
OP 8304
DO 10.1523/JNEUROSCI.22-18-08297.2002
VO 22
IS 18
A1 Brandon Rohrer
A1 Susan Fasoli
A1 Hermano Igo Krebs
A1 Richard Hughes
A1 Bruce Volpe
A1 Walter R. Frontera
A1 Joel Stein
A1 Neville Hogan
YR 2002
UL http://www.jneurosci.org/content/22/18/8297.abstract
AB Smoothness is characteristic of coordinated human movements, and stroke patients' movements seem to grow more smooth with recovery. We used a robotic therapy device to analyze five different measures of movement smoothness in the hemiparetic arm of 31 patients recovering from stroke. Four of the five metrics showed general increases in smoothness for the entire patient population. However, according to the fifth metric, the movements of patients with recent stroke grew less smooth over the course of therapy. This pattern was reproduced in a computer simulation of recovery based on submovement blending, suggesting that progressive blending of submovements underlies stroke recovery.