synergy patterns

synergy patterns

Primitive movements that dominate reflex and voluntary effort when spasticity is present following a cerebrovascular accident. They interfere with coordinated voluntary movements such as eating, dressing, and walking. Flexion synergy patterns include scapular retraction, shoulder abduction and external rotation, elbow flexion, forearm supination, and wrist and finger flexion in the upper extremity; and hip flexion, abduction and external rotation, knee flexion, and ankle dorsiflexion in the lower extremity. Extension synergy patterns include scapular protraction, shoulder adduction and internal rotation, elbow extension, forearm pronation, and wrist and finger flexion in the upper extremity; and hip extension, adduction and internal rotation, knee extension, ankle plantar flexion and inversion, and toe flexion in the lower extremity.
References in periodicals archive ?
Progression criteria from phase one to phase two included the following: spasticity decreases; synergy patterns can be reversed if movement takes place in the weaker synergy first; movements combining antagonistic synergies can be performed when the prime movers were the strong components of the synergy (stage 4 CMSA).
Agostini et al., "Muscle synergy patterns as physiological markers of motor cortical damage," Proceedings of the National Academy of Sciences of the United States of America, vol.
ULDA failed to capture the relationship between all MCP and PIP joints in multiple synergies, as indicated in the synergy patterns (Figure 2).
Hemiparesis is worsened by disuse and cocontraction patterns across multiple joints (i.e., synergy patterns) [2].
Limiting effort to limit the expression of synergy patterns will allow FES to have a greater effect.
Similarly, participating in these therapies may increase volitional movement and disconnect synergy patterns [20], thereby allowing more assistance from volitional effort, providing a more robust command signal, allowing for finer movements in response to stimulation, and progressively decreasing reliance on the stimulation.
Quantification of functional weakness and abnormal synergy patterns in the lower limb of individuals with chronic stroke.