That is a lot of steps per day! I think, this recommendation might be excessive! What about other physical exercises/activities?
What is the recommendation now? 5,000, 8,000 or 10,000 steps per day? Maybe next year we are told 3,000 steps per day! đ
It appears, the recommendations are all over the place! A sedentary individual may just lean back pondering all these various recommendations! Caution: irony.
Indeed, the article says the beneficial effect "plateaus at around 5,000 to 7,500 steps per day".
Google Fit tells me that my typical about 3 mile walk (not daily) is roughly 6000 steps.
"... The scientists found that patients who started with high levels of beta-amyloid, an early biological sign of Alzheimer’s, declined less if they were more physically active. Low or moderate levels of physical activity in this group, the authors reported, could slow cognitive decline by half compared with inactive individuals. That effect plateaued at around 5,000 to 7,500 steps a day. ..."
"... The research indicates that people don’t need to take 10,000 steps a day, a goal that is often touted but might be hard for some older individuals to attain ..."
"... Cognitive decline was delayed by three years on average for people who walked just 3,000-5,000 steps per day, and by seven years in people who walked 5,000-7,500 steps per day. Sedentary individuals had a significantly faster buildup of tau proteins in the brain and more rapid declines in cognition and daily functioning. ..."
From the abstract:
"Physical inactivity is a recognized modifiable risk factor for Alzheimer’s disease (AD), yet its relationship with progression of AD pathology in humans remains unclear, limiting the effective translation into prevention trials.
Using pedometer-measured step counts in cognitively unimpaired older adults, we demonstrated an association between higher physical activity and slower cognitive and functional decline in individuals with elevated baseline amyloid. Importantly, this beneficial association was not related to lower amyloid burden at baseline or longitudinally.
Instead, higher physical activity was associated with slower amyloid-related inferior temporal tau accumulation, which significantly mediated the association with slower cognitive decline.
Dose–response analyses further revealed a curvilinear relationship, where the associations with slower tau accumulation and cognitive decline reached a plateau at a moderate level of physical activity (5,001–7,500 steps per day), potentially offering a more approachable goal for older sedentary individuals [???].
Collectively, our findings support targeting physical inactivity as an intervention to modify the trajectory of preclinical AD in future prevention trials, and further suggest that preferentially enrolling sedentary individuals with elevated amyloid may maximize the likelihood of demonstrating a protective effect of physical activity on tau accumulation and cognitive and functional decline in early AD."
Alzheimer’s decline slows with just a few thousand steps a day "A modest increase in physical activity can delay cognitive decline by three years — or more."
Even Modest Amounts of Physical Activity May Slow Alzheimer’s Disease Among At-Risk Older Adults (original news release)
Longer walks beat shorter strolls for heart health (no public access) "People who rack up most of their daily steps in walks lasting less than five minutes have a higher risk of cardiovascular disease than do those who amass their steps in big blocks."
Even people who don’t reach the recommended 8,000 steps per day can reap health benefits if they take relatively long walks.
Extended Data Fig. 2: Interactive association between baseline physical activity and Aβ burden on initial ITC tau burden.
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