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This study assessed the addition effect of mild traumatic brain injury (MTBI) on the balance control of patients who simultaneously suffered a whiplash associated disorder (WAD).

Dizziness is common in patients suffering from whiplash injury with or without a MTBI, but data is lacking about the additional balance problems and dizziness caused by MTBI.

44 patients with WAD and MTBI and 36 WAD patients without MTBI participated in the study. A dizziness handicap index (DHI) was used to quantify self-perceived handicap. Balance control was assessed using measures of trunk sway for a battery of stance and gait tests.

Patients with WAD and MTBI perceived significantly higher dizziness and unsteadiness (higher score in DHI Emotional category) and had greater trunk sway than WAD patients without MTBI for stance tasks and complex gait tasks (e.g. walking up …