Many survivors of acquired brain injury (ABI) suffer from decreased balance and increased risks of falls. Previous studies indicate that balance training improves balance, reduces falls, and increases walking speed and balance confidence. The purpose of this study is to determine if a multidimensional balance training based on the FallProof(TM) approach achieves better improvements in balance and walking performance than the current practice . Participants will be assigned to: 1)a task-oriented circuit training balance class (current practice), or 2) balance training class based on the FallProof(TM) approach. Standardized tests will determine if participating in balance training helps improve balance, walking speed and balance confidence.