TY  - JOUR
PY  - 2011//
TI  - Previous mild traumatic brain injury and postural-control dynamics
JO  - Journal of athletic training
A1  - Sosnoff, Jacob J.
A1  - Broglio, Steven P.
A1  - Shin, SungHoon
A1  - Ferrara, Michael S.
SP  - 85
EP  - 91
VL  - 46
IS  - 1
N2  - Context: Postural control and cognitive function are adversely affected by acute mild traumatic brain injury (mTBI). Whether postural-control deficits persist beyond the acute stage in individuals with a history of mTBI is unclear. Objective: To determine if postural-control deficits persist in individuals with a history of mTBI. Design: Retrospective cross-sectional study. Setting: University research laboratory. Patients or Other Participants: As part of an ongoing investigation examining cognitive and motor deficits associated with mTBI, 224 individuals participated in the study. Of these, 62 participants self-reported at least 1 previous physician-diagnosed mTBI. Intervention(s): Postural control was assessed using the NeuroCom Sensory Organization Test (SOT) postural-assessment battery. Main Outcome Measure(s): The SOT postural assessment yields 4 indices of postural control: a composite balance score, a visual ratio score, a somatosensory score, and a vestibular score. Postural dynamics were also examined by calculating approximate entropy of center-of-pressure excursions in the anteroposterior and mediolateral axis for each test condition. Results: Minimal differences in the SOT indices were noted among individuals with and without a history of previous mTBI (P > .05). In the group with a history of mTBI, anteroposterior postural irregularity decreased as postural difficulty increased. In contrast, the group without a history of mTBI displayed increased postural irregularity in the mediolateral direction. Conclusions: Individuals with a history of mTBI exhibited altered postural dynamics compared with individuals without a history of mTBI. These findings support the notion that changes in cerebral functioning that affect postural control may persist long after acute injury resolution.<p />  <p>Language: en</p>
LA  - en
SN  - 1062-6050
UR  - http://dx.doi.org/10.4085/1062-6050-46.1.85
ID  - ref1
ER  -