Cognitive function was assessed using the Trail-Making Test (TMT) A and B, a widely used tool for evaluating cognitive function in older adults. The TMT-A test measures lower cognitive functions, such as attention and processing speed, while the TMT-B test measures more demanding executive functions such as task-switching ability.
Additionally, blood samples were collected to measure brain-derived neurotrophic factor (BDNF) and cathepsin B (CTSB) levels. Both have been suggested to reflect the benefits of exercise in the brain. Participants also wore fitness monitoring devices to record exercise-specific data like distance, duration, pace, energy expenditure and steps. An ECG sensor with a chest strap was used to monitor heart rate.
Enhancing Cognitive Function in Older Adults through Exercise
The study showed that a single session of any of the three exercises 18 holes of golf, 6 km of Nordic walking or 6 km of regular walking improved lower cognitive functions measured with the TMT-A test in older adults, although no significant effects were seen on the levels of BDNF and CTSB. Furthermore, Nordic walking and regular walking were associated with enhanced executive functions measured with the TMT-B test.
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Previous research has indicated the potential cognitive benefits of acute bouts of aerobic exercise, with factors like exercise intensity, duration and type influencing the extent of improvement.
“Previous research has shown that exercise also holds promise as a potential strategy for those experiencing cognitive decline,” says Julia Kettinen, the first author of the article and a Doctoral Researcher in Sports and Exercise Medicine at the Institute of Biomedicine, University of Eastern Finland.
Source: Eurekalert
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