http://www.sciencedirect.com/science/article/pii/S0306987715003126
Choose an option to locate/access this article:
Check if you have access through your login credentials or your institution
Check access
Summary
Since
the first Broca publications issued from 1970s, lateralized functions
in the human brain have urged the researchers to postulate hypothesis
based in the right–left asymmetries and, according to some theories, the
lateralization of the voluntary motor control could represent a
solution to avoid redundant process optimizing space and time. Supported
by this idea, the clinicians and researchers tend to concept that the
chronic hemiplegic stroke patients learn to use predominantly the
non-affected hemibody after stroke in which is more convenient to
execute their daily life activities, modifying their natural preference
in some cases. Although could seems reasonable conceptualize the
non-affected side as the predominantly-used hemibody for motor tasks
after stroke (convenience hypothesis), evidences point to exist also
hemiplegic patients that developed a predominantly use of the affected
side. To float an idea, in terms of weight bearing distribution during
upright position, the researchers have found patients overloading the
non-affected hemibody, as expected; but also patients overloading the
affected hemibody, not presenting necessarily Pusher’s syndrome cases.
Given the evidences, we could propose a severity-modulated predominance
hypothesis which complements the convenience hypothesis. According to
our complementary hypothesis, the severity of the motor disability
presented in the hemiparesis condition (light, moderate and heavy
severity) could determine a predominant use defined by preference (light
to moderate severity) or convenience (moderate to heavy severity). In
this hypothesis, we postulate ideas from a rehabilitation perspective to
be incorporated in treatment programs.
No comments:
Post a Comment