GetUp&Go: A Randomized Controlled Trial of an Intervention to Enhance Physical Activity After TBI

Inclusion Criteria: * Age ≥18 * TBI (open or closed), sustained at least 6 months prior to enrollment, of at least complicated-mild/moderate severity as evidenced by loss or alteration of consciousness ≥ 30 minutes; and/or post-traumatic amnesia (PTA) ≥ 24 hours, not due to intoxication/sedation and documented prospectively from the injury; and/or positive neuroimaging findings consistent with TBI * Fully weight bearing on lower limbs and able to walk indoors and outdoors without the assistance of another person * Cognitively able to participate in treatment as judged by ability to travel independently within the community * Able to communicate adequately in English for participation in the treatment protocols * Informed consent given by participant Exclusion Criteria: * Contraindications to increasing PA as judged by study physician, using an exam based on published screening tools * Medical or psychiatric instability, including current psychosis or severe uncontrolled substance misuse, as assessed using items from the SCID/MINI/ASSIST, or suicidal ideation with intent or plan, as assessed by the Columbia-Suicide Severity Rating Scale, screening version * Significant physical or intellectual disability predating the TBI * Neurodegenerative disorder, e.g., Parkinson's disease * Insufficiently inactive, i.e., reporting \> 23 weekly moderate/vigorous activity units on the Godin Leisure-Time Exercise Questionnaire * Planned surgery or other hospitalization during the succeeding 9 months * Physical or sensory disability (e.g., blindness; severe bimanual incoordination) that prevents use of a smartphone