Numerous studies show that regular physical activity helps ward off dementia and other neurological problems. Now a study in the Journal of Neurology Neurosurgery & Psychiatry adds more nuance to the topic, showing that any regular leisure-time physical activity at any period in an adult’s life confers sharper memory and cognitive function later in life.
Study Details
Part of the 1946 British birth cohort study, this trial was designed to examine how timing, frequency, and maintenance of leisure-time physical activity impact cognition in later life.
Scientists administered the ACE-111 cognitive test at age 69 and then compared the results with physical activity levels reported at ages 36, 43, 53, 60–64, and 69. There were three categories — inactive; moderately active (1–4 times per month); and most active (5 or more times per month).
Various health, cognitive ability, socioeconomic, educational, and genetic components were factored into the study.
Subjects who were physically active at every ‘age point’ had better cognitive performance, verbal memory, and processing speed at 69. But positive effects were even observed among participants who were physically active as little as once per month. Sustained cumulative physical activity had the greatest benefits for cognitive function at age 69.
“Together, these results suggest that the initiation and maintenance of physical activity across adulthood may be more important than the timing of participating in physical activity in the life course, or the frequency of physical activity at a specific period,” write the study authors.
The research team recommends people stay physically active — with any type of leisure-time activity — throughout their adulthood. They also hope their findings motivate inactive adults to get active now for future neurological benefits.
Conclusion
“Being physically active at any time in adulthood, and to any extent, is linked with higher later-life cognitive state, but lifelong maintenance of physical activity was most optimal. These relationships were partly explained by childhood cognition and education, but independent of cardiovascular and mental health and APOE-E4, suggestive of the importance of education on the lifelong impacts of physical activity.”