Physical Activity and Cerebral Metabolism in the Elderly: a Randomised Controlled Trial
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Dementia
- Sponsor
- Professor Johannes Pantel
- Enrollment
- 60
- Locations
- 2
- Primary Endpoint
- Change in cerebral metabolism (assessed by MRSI)
- Status
- Completed
- Last Updated
- 10 years ago
Overview
Brief Summary
Physical activity exerts a variety of long-term health benefits in older adults.This randomised controlled trial investigates the effect of a 12-week physical exercise program on the change in cerebral metabolism as assessed with Magnetic Resonance Spectroscopic Imaging. Follow-up lasts for 6 months.
Investigators
Professor Johannes Pantel
Head of Department, Institute of General Practice
Goethe University
Eligibility Criteria
Inclusion Criteria
- •be above 65 years of age,
- •voluntariness
- •capacity to consent,
- •having passed medical entry exam by the Department of Sports Medicine,
- •regular mental capacity, 5) written informed consent
Exclusion Criteria
- •untreated clotting disorders,
- •musculoskeletal diseases significantly reducing mobility,
- •severe bacterial or viral infections,
- •severe respiratory diseases (Gold IV),
- •acute pulmonary embolism,
- •instable angina pectoris or severe heart failure (NYHA III or IV),
- •severe vascular disease of the extremities or the brain,
- •severe pulmonary-cardiac dysfunction,
- •acute myocardial infarction or early phase of rehabilitation,
- •critical aortal stenosis,
Outcomes
Primary Outcomes
Change in cerebral metabolism (assessed by MRSI)
Time Frame: 6 month
assessed by MRSI, Primary hypothesis is that aerobic exercise leads to an increase of cerebral N-acetyl-aspartate (NAA; mediated by plasma neurotrophins). Secondary hypothesis stipulates an increase of markers of neuronal energy reserve: i.e. the ratio of phosphocreatinin to creatinine and of adenosine-tri-phosphate (ATP) to \~di-phosphate (ADP). Third hypothesis is an increase in the volume of cortical grey matter
Secondary Outcomes
- Cardiopulmonary exercise test (Aerobic exercise capacity is determined by a physician-supervised CPET)(0, 3 and 6 month)
- Psychometric testing 5 (speed of cognitive processing is assessed by means of the Trail-Making-Test Part A)(0, 3 and 6 month)
- Psychometric testing 1 (verbal declarative memory [Verbal Learning and Memory test; adapted German version of the Rey Auditory Verbal Learning test](0, 3 and 6 month)
- Psychometric testing 2 (frontal executive control [Colour-Word-Interference test; adapted German version of the Stroop test; Trail-Making-Test Part B](0, 3 and 6 month)
- Psychometric testing 8 (cristalline intelligence is assessed by means of a verbal intelligence test [Multiple-Choice Word Test: MWT-B](0, 3 and 6 month)
- Psychometric testing 3 (working memory [Digit Span Test forward and backward](0, 3 and 6 month)
- Balance and strength (postural sway (balance) and gait data acquisition via the capacitive force-measuring platform (30 Hz) WinFDM v0.0.41® (Zebris© GmbH, Isny, Germany)(0, 3 and 6 month)
- Pain Assessment (German Pain Questionnaire)(0, 3 and 6 month)
- History of diet (Food frequency questionnaire DEGS1)(0, 3 and 6 month)
- History and fear of falling (German version of the Falls-Efficacy-Scale International Version)(0, 3 and 6 month)
- Psychometric testing 4 9semantic and phonematic fluency, nonverbal declarative memory and visual-constructive abilities by means of the CERAD-Plus (Consortium to Establish a Registry for Alzheimer's Disease) Neuropsychological Battery)(0, 3 and 6 month)
- Psychometric testing 6 (depressive disorders: Geriatric Depression Scale)(0, 3 and 6 month)
- Psychometric testing 7 (Age-associated subjective memory impairment is assessed using a memory complaint questionnaire [MAC-Q](0, 3 and 6 month)
- Psychometric testing 9 (dementia and mild cognitive impairment using the Mini Mental State Examination and the Instrumental Activities of Daily Living Questionnaire)(0, 3 and 6 month)
- Physical activity (International Physical Activity Questionnaire, Lifetime Total Physical Activity Questionnaire and Accelerometry)(0, 3 and 6 month)