Flexion synergy pattern after stroke11/30/2023 ![]() ![]() In the Ueda group, the activation ratios of the anterior deltoid fiber significantly decreased after the intervention in all reaching tasks.Ĭonclusion: The Ueda method reduces upper-extremity flexor spasticity and changes its synergy in stroke patients and should be considered a rehabilitation therapy for spastic stroke patients. The effect size was large ( n p 2 = 0.220). The interaction effects of the A-ApA index between the Ueda and convention groups and between pre-intervention and post-intervention stages were significant (p = 0.012). Results: In the Ueda group, the mean A-ApA index values differed significantly before and after the intervention (p = 0.041), indicating a weak evidence level however, the effect size was medium (d = –0.503). convention) and time (pre-/post-intervention) on all outcome measures (p < 0.05). Repeated-measures analysis of variance was conducted to confirm the therapeutic effect (2 × 2) as a function of group (Ueda vs. The A-ApA index and activation ratios of upper extremity muscles were evaluated and compared between the groups to confirm post-intervention changes in upper-extremity flexor spasticity and flexion synergies. Electromyographic data of six examined muscles in both upper extremities of all patients were recorded. Methods: We conducted a randomized double-blind pilot study in two rehabilitation hospitals involving 30 stroke patients who were randomly allocated to the Ueda (n = 15) and convention (n = 15) groups. Objects: This study aimed to investigate the immediate effects of the application of the Ueda method on patients with spasticity after stroke via an electrophysiological study. Thus, we introduced a different concept (Ueda method) of rehabilitation therapy that can complement the limitations of conventional therapy. 10.Background: Although various conventional approaches have been employed to reduce spasticity in neurological rehabilitation, only a few studies have shown scientific evidence for its effectiveness. Motor skill training may restore impaired corticospinal tract fibers in children with cerebral palsy. Task-dependent weakness at the elbow in patients with hemiparesis. Impact of gravity loading on post-stroke reaching and its relationship to weakness. Early intervention after perinatal stroke: opportunities and challenges. ![]() ABILHAND-Kids–a measure of manual ability in children with cerebral palsy. We interpret this conservation of independent control of the paretic shoulder and elbow as the use of more direct corticospinal projections instead of indirect cortico-reticulospinal pathways used in individuals with adult-onset hemiplegia.Ĭerebral palsy flexion synergy independent joint control pediatric hemiparesis perinatal stroke reaching.Īrnould C., Penta M., Renders A., Thonnard J. Relative maintenance in reaching seen in individuals with early brain injuries highlights minimal expression of the flexion synergy. Individuals with early-onset PH achieved lower peak velocities when reaching with the paretic arm compared to controls however, no differences in reaching distance were found between groups. Descending drive, and the possible expression of the upper extremity flexion synergy, was modulated by increasing shoulder abduction loading. Fifteen individuals with brain injuries before birth ( n = 8) and around full-term ( n = 7) and nine age-matched controls with no known neurological impairment completed a set of reaches in an admittance controlled robotic device. This study uses kinematics of a ballistic reaching task to evaluate the expression of the flexion synergy in individuals with pediatric hemiplegia (PH) ages six to seventeen years. An early unilateral brain injury occurring prior to six months post full-term may preserve corticospinal projections which can be used for independent joint control and thus minimizing the expression of the flexion synergy. The expression of the flexion synergy in individuals with brain injuries onset earlier in the lifespan is currently unknown. It is well established that the flexion synergy induces reaching constraints in individuals with adult-onset hemiplegia. Hemiparetic stroke in adulthood often results in the grouped movement pattern of the upper extremity flexion synergy thought to arise from an increased reliance on cortico-reticulospinal pathways due to a loss of lateral corticospinal projections. ![]()
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