Article

The purpose of this study was to examine how individuals modulate attention in a
gait/cognition dual task during a 4-week period following a concussion. Ten
individuals suffering from a grade 2 concussion and 10 matched controls performed
a single task of level walking, a seated auditory Stroop task and a simultaneous
auditory Stroop and walking task. Reaction time and accuracy were measured from
the Stroop task. Dynamic balance control during gait was measured by the
interaction (displacement and velocity) between the center of mass (CoM) and
center of pressure (CoP) in the coronal and sagittal planes. Concussed
individuals shifted from conservative control of balance (shorter separation
between CoM and CoP) immediately after injury to normal balance control over 28
days post-injury. Immediately after injury, correlations analyses using each
subject on each testing day as a data point showed that there was a spectrum of
deficient performance among concussed individuals on the first testing day.
Within a testing session, deficiencies in reaction time of processing involved in
the Stroop task were commonly seen with reduce dynamic balance control. However,
the prioritization was not always towards the same task between trials. There were no correlations in the control group. Information provided in this study
would enhance our understanding of the interaction between attention and gait
following concussion.

Langue : ANGLAIS