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2019 (English)In: Journal of Alzheimer's Disease, ISSN 1387-2877, E-ISSN 1875-8908, Vol. 71, no 4, p. 1245-1261Article in journal (Refereed) Published
Abstract [en]
Previous studies have indicated that an active lifestyle is associated with better brain health and a longer life, compared to a more sedentary lifestyle. These studies, both on human and animal subjects, have typically focused on a single activity, usually physical exercise, but other activities have received an increasing interest. One proposed mechanism is that physical exercise increases levels of brain-derived neurotrophic factor (BDNF) in the brain. For the first time, the long-term effects on serum BDNF levels were compared in persons who engaged in either physical exercise training, cognitive training, or mindfulness practice during 5 weeks, and compared with an active control group. Two cohorts of healthy older individuals, one from the Boston area in the US and one from the Vaxjo area in Sweden, participated. A total of 146 participants were randomly assigned to one of the four groups. All interventions were structurally similar, using interactive, computer-based software that directed participants to carry out specified activities for 35 minutes/day, 5 days per week for 5 weeks. Blood samples were obtained at baseline and soon after the completion of the 5-week long intervention program, and serum BDNF levels were measured using a commercially available ELISA. Only the group that underwent cognitive training increased their serum BDNF levels after 5 weeks of training (F-1,F-74 = 4.22, p = 0.044, partial eta(2) = 0.054), corresponding to an average 10% increase. These results strongly suggest that cognitive training can exert beneficial effects on brain health in an older adult population.
Place, publisher, year, edition, pages
IOS Press, 2019
Keywords
Aging, brain-derived neurotrophic factor, cognitive training, mindfulness, physical exercise
National Category
Psychology
Research subject
Social Sciences, Psychology
Identifiers
urn:nbn:se:lnu:diva-89872 (URN)10.3233/JAD-190756 (DOI)000490569300017 ()31498125 (PubMedID)2-s2.0-85073762103 (Scopus ID)
2019-10-312019-10-312025-04-30Bibliographically approved