Exercise does not prevent or delay onset of dementia
Exercise does not prevent or delay onset of dementia
Study Exercise doesn't slow progression of dementia
17 Мая, 2018, 16:25
Although a short-term improvement in physical fitness was reported among patients in the exercise group, cognitive impairment after 12 months had declined a similar amount in both groups.
Almost 47.5 million people across the world are estimated to have dementia and the view that exercise might counteract the decline in mental capacity has gained widespread popularity.
To try and resolve this uncertainty, a team of United Kingdom researchers made a decision to estimate the effect of a moderate to high intensity aerobic and strength exercise training programme on cognitive impairment and other outcomes in people with dementia.
But recent reviews of trials of exercise training in people with dementia have shown conflicting results. They also exercised at home for one hour a week.
Participants were tested a year later using a recognised Alzheimer's disease assessment score.
Indeed, patients who participated in the exercise programme showed slightly worse scores than those who hadn't exercised. On average, those who exercised saw their score change from 23.8 to 25.2. Activities of daily living, number of falls, and quality of life were also assessed.
The authors said in a statement: "This trial suggests that people with mild to moderate dementia can engage and comply with moderate to high intensity aerobic and strengthening exercise and improve physical fitness".
"These benefits do not, however, translate into improvements in cognitive impairment, activities in daily living, behaviour, or health-related quality of life".
"I was disappointed by the results, although I probably wasn't completely surprised", said Sarah Lamb, lead author of the study and professor of trauma rehabilitation at Oxford University.
"We don't want to alarm members of the public with dementia and their families".
It is well known that exercise is beneficial for physical and mental wellbeing, improving strength and cardiovascular fitness as well as boosting mood and self-esteem.
These recommendations were made by the NHS, which added, "there's good evidence that a healthy lifestyle can help reduce your risk of developing dementia when you're older".
People with dementia are now forced to rely on services so starved of funding that they're unable to protect them from harm and the doors of A&E, let alone provide specialist care and support. This study would suggest not. We know that for Alzheimer's disease the degeneration of brain cells starts many years before symptoms start and so the likelihood of altering the disease at a late stage is less than with early intervention.
Participants were assessed at six and 12 months after starting the programme.
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