Robotic exoskeletons: a perspective for the rehabilitation of arm coordination in stroke patients

N Jarrassé, T Proietti, V Crocher… - Frontiers in human …, 2014 - frontiersin.org
Upper-limb impairment after stroke is caused by weakness, loss of individual joint control,
spasticity, and abnormal synergies. Upper-limb movement frequently involves abnormal …

Feasibility of muscle synergy outcomes in clinics, robotics, and sports: a systematic review

J Taborri, V Agostini, PK Artemiadis… - Applied bionics and …, 2018 - Wiley Online Library
In the last years, several studies have been focused on understanding how the central
nervous system controls muscles to perform a specific motor task. Although it still remains an …

Common muscle synergies for balance and walking

SA Chvatal, LH Ting - Frontiers in computational neuroscience, 2013 - frontiersin.org
Little is known about the integration of neural mechanisms for balance and locomotion.
Muscle synergies have been studied independently in standing balance and walking, but …

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 …

Involuntary paretic wrist/finger flexion forces and EMG increase with shoulder abduction load in individuals with chronic stroke

LC Miller, JPA Dewald - Clinical neurophysiology, 2012 - Elsevier
OBJECTIVE: Clinical observations of the flexion synergy in individuals with chronic
hemiparetic stroke describe coupling of shoulder, elbow, wrist, and finger joints. Yet …

Robustness of muscle synergies underlying three-dimensional force generation at the hand in healthy humans

J Roh, WZ Rymer, RF Beer - Journal of neurophysiology, 2012 - journals.physiology.org
Previous studies using advanced matrix factorization techniques have shown that the
coordination of human voluntary limb movements may be accomplished using combinations …

Long-latency reflexes account for limb biomechanics through several supraspinal pathways

IL Kurtzer - Frontiers in integrative neuroscience, 2015 - frontiersin.org
Accurate control of body posture is enforced by a multitude of corrective actions operating
over a range of time scales. The earliest correction is the short-latency reflex (SLR) which …

Functional synergy recruitment index as a reliable biomarker of motor function and recovery in chronic stroke patients

N Irastorza-Landa, E García-Cossio… - Journal of neural …, 2021 - iopscience.iop.org
Objective. Stroke affects the expression of muscle synergies underlying motor control, most
notably in patients with poorer motor function. The majority of studies on muscle synergies …

Planning of ballistic movement following stroke: insights from the startle reflex

CF Honeycutt, EJ Perreault - 2012 - journals.plos.org
Following stroke, reaching movements are slow, segmented, and variable. It is unclear if
these deficits result from a poorly constructed movement plan or an inability to voluntarily …

Effects of early and intensive neuro-rehabilitative treatment on muscle synergies in acute post-stroke patients: a pilot study

P Tropea, V Monaco, M Coscia, F Posteraro… - … of neuroengineering and …, 2013 - Springer
Background After a stroke, patients show significant modifications of neural control of
movement, such as abnormal muscle co-activation, and reduced selectivity and modulation …