About this trial
Aerobic endurance training has shown positive effects on symptoms, cognition, daily functioning, and the structure of the hippocampus in patients with schizophrenia. The study investigates genetic and epigenetic influences on neuroplastic changes following three months of endurance training. A control group performs flexibility, strength, and balance training. The main objective is to examine the association between a genetic risk score for schizophrenia and volume increase in the CA4/DG region of the hippocampus. Additional goals include examining changes in synapses, brain structure, function, and metabolism, as well as clinical symptoms and cognitive performance.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Written informed consent for voluntary study participation.
Patients with schizophrenia: diagnosis of schizophrenic psychosis according to ICD10 and DSM V,
Positive And Negative Syndrome Scale (PANSS) total score ≤ 75 before the start of the intervention
Reliable contraception in women of childbearing age
Disqualifiers
Lack of reliability and sanity (examined by an independent psychiatrist)
Positive urine drug screen for illicit drugs (except benzodiazepines)
Acute suicide risk
Other relevant psychiatric axis-I disorders according to the diagnostic testing procedure (Mini International Neuropsychiatric Interview, MINI)
Trial design
Parallel
Treatments tested in this trial
Aerobic Endurance Training
Procedure/SurgeryAerobic endurance training on a bicycle ergometer (week 1 to 6: three units per week á 40 minutes, week 7 to 12: three units á 45 minutes, in groups of up to three patients over 13 weeks)
Flexibility, strengthening and balance training
Procedure/SurgeryFlexibility, strengthening and balance training (exercises from the areas of stretching, strength, balance and relaxation, 3x40 min from week 1-2, 3x45 min from week 3-4 and 3x50 min from week 5-13, in groups of up to three patients over 13 weeks)
Treatment groups
Trial outcomes
Primary outcomes
Hippocampal volume
Change in hippocampal subregion cornu ammonis (CA) 4 volume (∆CA4/DG) and its correlation with polygenetic risk factor (PRS)
Secondary outcomes
Cognitive functions
verbal memory, working memory, motor speed, verbal fluency, attention and speed of information processing assessed by BACS
Executive functions
visual attention and task switching (TMT-A, B), episodic memory with the What-Where-When Test and visuo-spatial short- and long-term memory with the Brief Visuospatial Memory Test-Revised (BVMT-R)
Symptoms severity
change over study duration assessed by PANSS, BNSS, CDSS
Functioning in daily life
Assessed by SOFAS, GAF, FROGS
Sponsors and contacts
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LMU Klinikum
Lead sponsor
German Research Foundation
Collaborator