As we look ahead to a future where the percentage of older adults is expected to double, it becomes imperative to find ways to support healthy cognitive aging. Regular physical activity is known to benefit both physical and cognitive health, but the underlying mechanisms are not fully understood. In this randomized controlled trial, researchers will examine the effects of an eight-week online physical activity training program for older adults on cognitive function, brain structure, gut-barrier function, and the relationship between these factors. One hundred healthy participants aged 60 to 75 will be recruited and undergo comprehensive baseline assessments. They will then be randomly assigned to either the physical activity group or a relaxation group. The intervention will be conducted online, with participants accessing their training materials on a designated study website. After the eight-week program, participants will undergo post-intervention assessments. The primary outcome of the study is changes in visual processing speed. Secondary outcomes related to cognitive function, brain structure, and microbiome data will also be explored. This study aims to shed light on the complex relationships between physical activity, cognitive function, and gut-brain interactions in older adults. To learn more about this exciting research, check out the full article!
IntroductionBy 2050, the worldwide percentage of people 65 years and older is assumed to have doubled compared to current numbers. Therefore, finding ways of promoting healthy (cognitive) aging is crucial. Physical activity is considered an effective approach to counteract not only physical but also cognitive decline. However, the underlying mechanisms that drive the benefits of regular physical activity on cognitive function are not fully understood. This randomized controlled trial aims to analyze the effect of an eight-week standardized physical activity training program in older humans on cognitive, brain, and gut-barrier function as well as the relationship between the resulting changes.Methods and analysisOne-hundred healthy participants aged 60 to 75 years will be recruited. First, participants will undergo an extensive baseline assessment consisting of neurocognitive tests, functional and structural brain imaging, physical fitness tests, and gut-microbiome profiling. Next, participants will be randomized into either a multi-component physical activity group (experimental condition) or a relaxation group (active control condition), with each training lasting 8 weeks and including an equal number and duration of exercises. The whole intervention will be online-based, i.e., participants will find their intervention schedule and all materials needed on the study website. After the intervention phase, participants will have their post-intervention assessment, which consists of the same measures and tests as the baseline assessment. The primary outcome of this study is the change in the cognitive parameter of visual processing speed from baseline to post-measurement, which will on average take place 10 weeks after the randomization. Secondary outcomes related to cognitive, brain, and microbiome data will be analyzed exploratory.Clinical trial registration:https://drks.de/search/de/trial/DRKS00028022
Dr. David Lowemann, M.Sc, Ph.D., is a co-founder of the Institute for the Future of Human Potential, where he leads the charge in pioneering Self-Enhancement Science for the Success of Society. With a keen interest in exploring the untapped potential of the human mind, Dr. Lowemann has dedicated his career to pushing the boundaries of human capabilities and understanding.
Armed with a Master of Science degree and a Ph.D. in his field, Dr. Lowemann has consistently been at the forefront of research and innovation, delving into ways to optimize human performance, cognition, and overall well-being. His work at the Institute revolves around a profound commitment to harnessing cutting-edge science and technology to help individuals lead more fulfilling and intelligent lives.
Dr. Lowemann’s influence extends to the educational platform BetterSmarter.me, where he shares his insights, findings, and personal development strategies with a broader audience. His ongoing mission is shaping the way we perceive and leverage the vast capacities of the human mind, offering invaluable contributions to society’s overall success and collective well-being.