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Walking Speed is an Indicator of Brain Aging; Study Reveals Half the Risk of Dementia

From Liberty Times · () Chinese

Translated from Chinese, summarized and contextualized by DistantNews.

At a glance

News Named sources Context piece
  • A study suggests walking speed can be an indicator of brain aging, with faster walkers showing a lower risk of cognitive decline.
  • "Super movers," defined as individuals over 80 who walk significantly faster than their peers, had about half the risk of developing cognitive impairment.
  • While the study shows a correlation, researchers note that factors like overall physical activity, chronic disease, diet, and genetics may contribute to both faster walking and better cognitive health.

Walking speed may serve as a crucial indicator of brain aging, according to a recent study that analyzed nearly 4,000 individuals aged 80 and above. The research, which tracked participants for three to five years, found that those who maintained a faster walking pace exhibited a significantly lower risk of cognitive impairment.

Specifically, the study identified a group termed "super movers" – individuals over 80 whose walking speed was at least 1.5 standard deviations above the average for their age and sex. These "super movers" were found to have approximately half the risk of developing cognitive impairment compared to their slower-walking peers. Further analysis on a subset of these individuals revealed that they also experienced slower declines in memory and other cognitive functions, with brain MRIs showing better preservation of brain volume in areas associated with learning and memory.

The study shows a correlation, not a causal relationship.

— ResearchersExplaining the limitations of the study linking walking speed and cognitive health.

While the findings highlight a strong correlation between brisk walking and cognitive health, researchers caution that the study demonstrates association rather than direct causation. It is possible that individuals who are "super movers" also engage in other healthy lifestyle behaviors. These could include higher overall physical activity levels throughout their lives, fewer chronic health conditions, healthier diets, genetic predispositions, higher socioeconomic status, or stronger social support systems, all of which can contribute to both physical mobility and cognitive well-being.

Despite these caveats, the research suggests that maintaining physical fitness, even in advanced age, is beneficial. Experts note that individuals can improve their physical capabilities through consistent exercise, such as gradually increasing walking duration and intensity, incorporating inclines, or engaging in other aerobic activities like cycling or swimming. Strength training is also emphasized as vital for maintaining muscle mass and function as people age. The study implies that actively working on physical health may play a role in preserving cognitive function.

Super movers may differ from others in many aspects, such as their lifetime physical activity levels.

— ResearchersSuggesting potential contributing factors beyond walking speed for cognitive health.
DistantNews Editorial

Originally published by Liberty Times in Chinese. Translated, summarized, and contextualized by our editorial team with added local perspective. Read our editorial standards.

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