Physical exercise is widely acknowledged as a crucial element of a healthy lifestyle, but a recent study from the University of Georgia has uncovered an extra advantage — preventing cognitive decline.

Researchers at the UGA College of Public Health examined data from over 13,000 survey participants and discovered that continuous physical activity can diminish the rate of cognitive decline among older adults. This information underscores the significance of sustaining regular physical activity throughout one’s life, stated lead author Suhang Song.

“We determined that increased duration and frequency of physical activity were linked to postponed cognitive decline,” said Song, an assistant professor in the Department of Health Policy and Management.

“These protective effects intensified over the duration of the study.”

Even engaging in exercise just once a week has an impact

The researchers depended on data from the Health and Retirement Study, a nationally representative investigation that monitored adults aged 50 and above for 16 years.

Participants indicated how often they engaged in physical activity and their level of intensity. Vigorous activities included running and jogging, while moderate activities encompassed gardening, dancing, and stretching. Light activities, such as vacuuming, laundry, and home repairs, were classified as mild.

If this gradual decline persists, it could possibly delay the onset of dementia by several years.” —Suhang Song, College of Public Health

The study did not specify particular exercise duration, instead focusing on overall activity patterns, and revealed that individuals who maintained regular physical activity throughout their lives experienced a considerably slower rate of cognitive decline.

For instance, raising vigorous physical activity from one to three times a month and then to once a week was associated with a noticeable decrease in cognitive decline. Additionally, increasing moderate physical activity from once weekly to multiple times a week also contributed to a reduced rate of cognitive decline over time.

“Although the improvement in the decline rate may appear modest, it accumulates over time. If this slower decline continues, it could potentially postpone the onset of dementia by several years, allowing individuals more time to live independently and sustain their quality of life,” Song expressed.

Encouraging regular activity in both practice and policy is vital

The findings expand on existing research connecting physical activity with cognitive health, but what distinguishes this study is its emphasis on the duration and regularity of activity over time.

Promoting sustained physical activity could be a fundamental aspect of any initiative aimed at reducing dementia risk among older adults, Song asserted.

Facilitating the establishment and maintenance of long-term physical activity habits, via guidance from healthcare providers and practitioners, could assist individuals in adopting more sustainable routines by setting practical, achievable goals, the researchers noted.

Ultimately, Song’s message is straightforward: Move more and maintain activity.

“Our findings provide support in shaping targeted interventions that promote timely, consistent, and long-term physical activity among older adults,” Song stated. “From clinical practice to intervention strategies, ongoing physical activity constitutes an essential proactive measure.”

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