About this trial
This study aims to identify and compare the effects of acute and chronic exercise interventions on cognition in middle-aged adults with cognitive complaints and a history of abuse or neglect in childhood. Each participant will be enrolled in the study for up to 78 days, in five parts following verification that the participant meets criteria to be included in the study: 1) initial assessment; 2) first acute exercise condition in lab, symptom measures, and neuropsychological testing; 3) second acute exercise condition in lab, symptom measures, and neuropsychological testing; and 4) 9-week exercise intervention or activity as usual outside of lab, with interview, symptom measures, and neuropsychological testing at three-week intervals.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
between 40 and 60 years of age
history of child abuse or neglect
have a complaint about memory, attention, or executive function
native or fluent English speaker
Disqualifiers
Score indicating a history of moderate-intensity activity, hard-intensity activity, or very-hard intensity activity on the Stanford Brief Activity Survey
current excessive alcohol or other substance use
eating disorder, bipolar disorder, schizophrenia spectrum disorders, or those judged to be an immediate suicide risk based on having an active plan with intent
autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD), or other neurodevelopmental disorder
Trial design
Crossover
Treatments tested in this trial
Moderate Intensity Exercise (one day)
BehavioralParticipants will engage in 40 minutes of cycling at 70-75% maximum heart rate (MHR).
Placebo - Light Intensity Exercise (one day)
BehavioralControl participants will engage in 40 minutes cycling at 40-50% maximum heart rate (MHR).
Moderate Intensity Exercise (9 wks)
BehavioralParticipants will be asked to engage in moderate-intensity activity four days each week, 40 minutes each time, and will wear an activity monitoring device to assess their fidelity to the intervention.
Day 1 Assessments
Other interventionCognitive complaints interview, Center for Epidemiological Studies Depression Scale Revised (CESD-R), Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), Life Events Checklist (LEC-5), and neuropsychological testing: approximately 1.50 hours
Symptom Measures and Neuropsychological Tests
Other interventionCenter for Epidemiological Studies Depression Scale Revised (CESD-R), Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), and neuropsychological testing: approximately 1.25 hours
Day 36 Assessments
Other interventionActivity monitoring device charged and data downloaded, questions regarding fidelity to activity as usual or moderate-intensity exercise and any difficulties, Cognitive complaints interview, Center for Epidemiological Studies Depression Scale Revised (CESD-R), Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), neuropsychological testing, and activity monitoring device returned to participant: approximately 2.00 hours
Day 57 Assessments
Other interventionActivity monitoring device charged and data downloaded, questions regarding fidelity to activity as usual or moderate-intensity exercise and any difficulties, Cognitive complaints interview, Center for Epidemiological Studies Depression Scale Revised (CESD-R), Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), neuropsychological testing, and activity monitoring device returned to participant: approximately 2.00 hours
Day 78 Assessments
Other interventionActivity monitoring device charged and data downloaded, questions regarding fidelity to activity as usual or moderate-intensity exercise and any difficulties, Cognitive complaints interview, Center for Epidemiological Studies Depression Scale Revised (CESD-R), Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5), neuropsychological testing, and activity monitoring device returned to participant: approximately 2.00 hours
Treatment groups
Trial outcomes
Primary outcomes
Change in performance (i.e., raw score of number of words recalled, in whole numbers) on the Loewenstein-Acevedo Scales for Semantic Interference and Learning (LASSI-L) from baseline will be compared within subjects.
The Loewenstein-Acevedo Scales for Semantic Interference and Learning (LASSI-L) is a reliable, well-validated measure of verbal learning and memory. The minimum score on this measure is 0, and the highest score is 15. Higher scores indicate better memory.
Change in performance (i.e., raw score of total correct, in whole numbers) on the Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV) Digit Span test from baseline will be compared within subjects.
The Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV) Digit Span test is a reliable, well-validated measure of auditory attention and working memory. The minimum score on this measure is 0, and the highest score is 48. Higher scores indicate better attention.
Change in performance (i.e., raw scores of time to complete task, in seconds) on the Trail Making Test (TMT) from baseline will be compared within subjects.
The Trail Making Test (TMT) is a reliable, well-validated measure of visual attention, processing speed, and executive function. The minimum score on this measure is 1, and the highest score is 300. Lower scores indicate better executive function.
Change in performance (i.e., raw scores of time to complete task, in seconds) on the Symbol Digit Modalities Test (SDMT) from baseline will be compared within subjects.
The Symbol Digit Modalities Test (SDMT) is a reliable, well-validated measure of visual working memory, processing speed, and executive function. The minimum score on this measure is 0, and the highest score is 110. Higher scores indicate faster processing speed.
Secondary outcomes
Change in total score on the Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5).
The Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5) a 20-item widely used questionnaire to assess the severity of symptoms of posttraumatic stress disorder (PTSD). The minimum score on this measure is 0, and the highest score is 80. Higher scores indicate worse symptoms of PTSD.
Change in total score on the Center for Epidemiological Studies Depression Scale Revised (CESD-R).
The Center for Epidemiological Studies Depression Scale Revised (CESD-R) is a 20-item self-report measure of depression symptoms used in research. The minimum score on this measure is 0, and the highest score is 60. Higher scores indicate worse symptoms of depression.
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