Cerebral strokes can disrupt descending commands from motor cortical areas to the spinal
cord, which can result in permanent motor deficits of the arm and hand. However, below the …

Introduction Muscle synergies have been proposed as a strategy employed by the central
nervous system to control movements. Muscle synergy analysis is a well-established …

Modular organization of human movement has been studied for several decades using
muscle synergy analysis. Whether the reduction in control dimensionality calculated by …

Brain–computer interfaces (BCIs) have been widely employed to identify and estimate a
user's intention to trigger a robotic device by decoding motor imagery (MI) from an …

Quantifying movement variability is a crucial aspect for clinical and laboratory investigations
in several contexts. However, very few studies have assessed, in detail, the intra-subject …

Background The cause of smoothness deficits as a proxy for quality of movement post stroke
is currently unclear. Previous simulation analyses showed that spectral arc length (SPARC) …

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 …

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 …

In neurorehabilitation, motor performances may improve if patients could accomplish the
training by overcoming mechanical loads. When the load inertia is increased, it has been …

The generation of isometric force at the hand can be mediated by activating a few motor
modules. Stroke induces alterations in motor modules underlying steady-state isometric …