Altered coordination patterns in parkinsonian patients during trunk-assisted prehension. Parkinsonism Relat Disord 2006 May;12(4):211-22
Date
02/08/2006Pubmed ID
16460987DOI
10.1016/j.parkreldis.2005.11.008Scopus ID
2-s2.0-33646681689 (requires institutional sign-in at Scopus site) 10 CitationsAbstract
We examined whether coordination between movement components during trunk-assisted prehension was compromised in PD patients in response to varying constraints (experiment 1: reach speed, object size, movement amplitude; experiment 2: movement sequence). In general, both PD patients and controls responded similarly to the changes in these three variables. PD patients, however, demonstrated less synchronized movements in terms of timing between onsets and offsets of aperture formation, endpoint motion and trunk motion. In addition, PD patients used a pattern different from that of controls in specifying the relative contribution of trunk and arm to the endpoint motion. A significant group difference was observed in that controls tended to synchronize the involved movement components together, whereas PD patients did not show such a trend. These data suggest that PD patients have intact parameterization capabilities, although they have a reduced capability to coordinate multiple neuromotor synergies as a single unit.
Author List
Wang J, Bohan M, Leis BC, Stelmach GEAuthor
Jinsung Wang PhD Assistant Professor in the Human Movement Sciences department at University of Wisconsin - MilwaukeeMESH terms used to index this publication - Major topics in bold
AgedArm
Ataxia
Biomechanical Phenomena
Female
Hand Strength
Humans
Male
Movement
Parkinson Disease
Psychomotor Performance
Thorax
