About this trial
The goal of this clinical trial is to test how exercise affects learning and memory processes relevant to the treatment of PTSD. Participants will complete a baseline intake followed by two experimental sessions. During the first experimental session, participants will undergo an MRI session of imaginal exposure to traumatic memory cues followed by 30-minutes of moderate intensity exercise or low intensity exercise. Participants will complete a second session of imaginal exposure with MRI 24 hours later.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults with PTSD related to interpersonal violence
Disqualifiers
Active or recent (within the last 3 months) severe substance use disorder(s)
Active or recent (within the last 3 months) suicidal, psychotic, or manic symptoms/ episodes
Significant developmental disabilities
Current daily benzodiazepine or stimulant use with inability to abstain for study sessions
Trial design
Parallel
Treatments tested in this trial
Moderate Intensity Exercise
BehavioralParticipants will wear a heartrate monitor and cycle on a stationary bike at a slow speed for 5 minutes, then slowly cycle on a stationary bike for 30 minutes, then cycle on the stationary bike at a slow speed for 5 minutes.
Low Intensity Exercise
BehavioralParticipants will wear a heartrate monitor and cycle on a stationary bike at a slow speed for 40 minutes.
Treatment groups
Trial outcomes
Primary outcomes
Change in participant subjective emotional ratings
Participant anxiety will be measured at baseline and after each imagery trial using a 10-point Likert-type scale with higher scores indicative of more subjective anxiety.
Change in Heart Rate
Participant heart rate will be measured at baseline and after each imagery trial using a Biopac MP160 system
Change in Fear Circuit Blood Oxygen Level-Dependent (BOLD) Response
Blood Oxygen Level-Dependent (BOLD) imaging will be measured during each imagery trial
Sponsors and contacts
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Christal L Badour
Lead sponsor
University of Kentucky
Sponsor institution
University of Texas at Austin
Collaborator
National Institute of Mental Health (NIMH)
Collaborator