Introduction: Regular physical activity (PA), especially aerobic exercise, may benefit cognitive function in middle-aged and older adults, but promoting regular PA in individuals with traumatic brain injury (TBI) remains a challenge. Objective: To characterize PA and perceived barriers to PA in younger (<45 years) and middle age and older (≥45 years) individuals ≥1 year after moderate-to-severe TBI. Design: Multicenter survey study. Setting: Community. Participants: Persons who met the following criteria were included in the study: (1) 18 years and older; (2) English speaking; (3) History of moderate-tosevere TBI; (4) Followed in a TBI Model Systems Center for at least 1 year; and (5) Able to complete the survey independently. Intervention: Not applicable. Main Outcome Measure(s): PA level measured by Rapid Assessment of Physical Activity questionnaire (RAPA) and self-reported barriers to PA.Results: A total of 472 participants completed the survey (response rate of 21%). More individuals in the younger group (<45 years old) met Centers for Disease Control and Prevention (CDC) recommended aerobic PA guidelines compared to the middle-aged and older group (≥ 45 years old) (62% vs 36%, p < .001). Lack of motivation, lack of time, and fatigue were the most reported barriers. Perceived barriers to PA varied by age and PA level: the middle-aged and older individuals (≥ 45 years old) were more likely to report no barriers and inactive individuals (RAPA ≤5) more likely to report lack of motivation and money, pain, and lack of resources. Conclusion: Participants ≥45 years of age were less likely to meet the CDC PA guidelines than younger individuals after moderate-to-severe TBI. Because perceived barriers to PA varied between age groups and PA levels, individualized approaches may be needed to promote PA in this population.
Purpose: To examine self-awareness in chronic traumatic brain injury (TBI) by cognitive domain, compare domain-specific self-awareness to global impaired self-awareness, and evaluate change in self-appraisal of cognitive ability from before to after neuropsychological testing. Method: Secondary analysis of a cross-sectional cohort of 59 participants with chronic TBI. We grouped participants as underestimators, fair estimators, and overestimators of their memory and executive functioning. We then compared these groups by global self-awareness measures, other clinical measures, and pre- to-posttest change in self-appraisal of cognitive performance. Results: Analyses revealed no significant differences in global self-awareness measures or depression between fair or underestimators and overestimators in Memory or Executive Function Domains. Only 12.50% of participants in the Memory Composite Domain and 6.89% of participants in the Executive Function Composite Domain changed their pre- to postneuropsychological test self-appraisal of cognitive ability. Conclusion: This study revealed most participants did not change their self-appraisal in response to completing neuropsychological testing alone. In conjunction with our findings that suggest global self-awareness measures may not adequately capture domain-specific self-awareness deficits in chronic TBI, this study provides support for development of targeted self-awareness assessment tools and the need for structured feedback, rather than naturalistic feedback alone, to improve self-awareness in chronic TBI.
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