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Action observation for upper limb rehabilitation after stroke. The latest scientific evidence indicates that action observation is beneficial in improving upper limb and hand function in patients with stroke. [92] Thus, action observation therapy is generally associated with better arm and hand function, with no significant adverse events. [92]
It is this process that CIMT seeks to reverse. The American Stroke Association has written that Taub's therapy is "at the forefront of a revolution" in what is regarded possible in terms of recovery for stroke survivors. [1] As a result of the patient engaging in repetitive exercises with the affected limb, the brain grows new neural pathways.
Brunnstrom (1966, 1970) and Sawner (1992) also described the process of recovery following stroke-induced hemiplegia. The process was divided into a number of stages: Flaccidity (immediately after the onset) No "voluntary" movements on the affected side can be initiated; Spasticity appears; Basic synergy patterns appear
In medicine, obligatory synergies occur when spasticity appears, such as following a stroke. It manifests in abnormal and stereotypical patterns across multiple joints called obligatory synergies. [1] They are described as either a flexion synergy or an extension synergy and affect both the upper and lower extremity (see below). [1]
A positive Babinski sign is considered a pathological sign of upper motor neuron disease except for infants, in whom it is normal, [7] whereas a positive Hoffmann's sign can be present in an entirely normal patient. A positive Hoffmann's sign in the normal patients is more commonly found in those who are naturally hyper-reflexive (e.g. 3 ...
It primarily involves the antigravity muscles – flexors of the upper limb and extensors of the lower limb. During the passive stretch, a brief "free interval" is appreciated in spasticity but not in rigidity because the resting muscle is electromyographically silent in spasticity. In contrast, in rigidity, the resting muscle shows firing. [10]