Alterations in upper limb muscle synergy structure in chronic stroke survivors

J Roh, WZ Rymer, EJ Perreault… - Journal of …, 2013 - journals.physiology.org
Previous studies in neurologically intact subjects have shown that motor coordination can be
described by task-dependent combinations of a few muscle synergies, defined here as a …

[HTML][HTML] Evidence for altered upper extremity muscle synergies in chronic stroke survivors with mild and moderate impairment

J Roh, WZ Rymer, RF Beer - Frontiers in human neuroscience, 2015 - frontiersin.org
Previous studies indicate that motor coordination may be achieved by assembling task-
dependent combinations of a few muscle synergies, defined here as fixed patterns of …

Muscle synergies: implications for clinical evaluation and rehabilitation of movement

S Safavynia, G Torres-Oviedo… - Topics in spinal cord …, 2011 - meridian.allenpress.com
We present a method called muscle synergy analysis, which can offer clinicians insight into
both underlying neural strategies for movement and functional outcomes of muscle activity …

Muscle synergy patterns as physiological markers of motor cortical damage

VCK Cheung, A Turolla, M Agostini… - Proceedings of the …, 2012 - National Acad Sciences
The experimental findings herein reported are aimed at gaining a perspective on the
complex neural events that follow lesions of the motor cortical areas. Cortical damage …

Stability of muscle synergies for voluntary actions after cortical stroke in humans

VCK Cheung, L Piron, M Agostini… - Proceedings of the …, 2009 - National Acad Sciences
Production of voluntary movements relies critically on the functional integration of several
motor cortical areas, such as the primary motor cortex, and the spinal circuitries …

Merging of healthy motor modules predicts reduced locomotor performance and muscle coordination complexity post-stroke

DJ Clark, LH Ting, FE Zajac… - Journal of …, 2010 - journals.physiology.org
Evidence suggests that the nervous system controls motor tasks using a low-dimensional
modular organization of muscle activation. However, it is not clear if such an organization …

Quantification of functional weakness and abnormal synergy patterns in the lower limb of individuals with chronic stroke

N Neckel, M Pelliccio, D Nichols, J Hidler - Journal of neuroengineering …, 2006 - Springer
Background The presence of abnormal muscle activation patterns is a well documented
factor limiting the motor rehabilitation of patients following stroke. These abnormal muscle …

Alterations of muscle synergies during voluntary arm reaching movement in subacute stroke survivors at different levels of impairment

B Pan, Y Sun, B Xie, Z Huang, J Wu, J Hou… - Frontiers in …, 2018 - frontiersin.org
Motor system uses muscle synergies as a modular organization to simplify the control of
movements. Motor cortical impairments, such as stroke and spinal cord injuries, disrupt the …

Changing motor synergies in chronic stroke

L Dipietro, HI Krebs, SE Fasoli… - Journal of …, 2007 - journals.physiology.org
Synergies are thought to be the building blocks of vertebrate movements. The inability to
execute synergies in properly timed and graded fashion precludes adequate functional …

Deficits in the coordination of multijoint arm movements in patients with hemiparesis: evidence for disturbed control of limb dynamics

RF Beer, JPA Dewald, WZ Rymer - Experimental brain research, 2000 - Springer
This study provides a detailed analysis of disturbances in the kinematics and dynamics of
the acceleration phase of multijoint arm movements in six patients with chronic hemiparesis …