Deans' stroke musings: 1-Hour Exercise, 3 Times a Week Boosts Cognition in Older Adults

Changing stroke rehab and research worldwide now.Time is Brain! trillions and trillions of neurons that DIE each day because there are NO effective hyperacute therapies besides tPA(only 12% effective). I have 523 posts on hyperacute therapy, enough for researchers to spend decades proving them out. These are my personal ideas and blog on stroke rehabilitation and stroke research. Do not attempt any of these without checking with your medical provider. Unless you join me in agitating, when you need these therapies they won't be there.

What this blog is for:

My blog is not to help survivors recover, it is to have the 10 million yearly stroke survivors light fires underneath their doctors, stroke hospitals and stroke researchers to get stroke solved. 100% recovery. The stroke medical world is completely failing at that goal, they don't even have it as a goal. Shortly after getting out of the hospital and getting NO information on the process or protocols of stroke rehabilitation and recovery I started searching on the internet and found that no other survivor received useful information. This is an attempt to cover all stroke rehabilitation information that should be readily available to survivors so they can talk with informed knowledge to their medical staff. It lays out what needs to be done to get stroke survivors closer to 100% recovery. It's quite disgusting that this information is not available from every stroke association and doctors group.

Thursday, May 31, 2018

1-Hour Exercise, 3 Times a Week Boosts Cognition in Older Adults

How is your doctor making sure you can accomplish this post stroke? This is your doctors' responsibility, don't let them weasel their way out of it.
https://www.medpagetoday.com/neurology/dementia/73179?

But no improvement in memory

by Judy George, Contributing Writer, MedPage Today May 30, 2018

Exercising for 52 hours over a 6-month period may be an optimal dose for cognitive improvement in older adults, a systematic review of 98 randomized clinical trials suggested.

Interventions that averaged 52 hours over a span of 6 months -- averaging about an hour, 3 times a week -- were linked to specific cognitive improvements in adults with and without cognitive impairment, reported Joyce Gomes-Osman, PT, PhD, of the University of Miami Miller School of Medicine, and colleagues in Neurology: Clinical Practice

"The constructs of cognition that were most amenable to exercise were processing speed and executive function," Gomes-Osman told MedPage Today. "This is an encouraging result because those two constructs are among the first that start to go with the aging process. "This is evidence that you can actually turn back the clock of aging in your brain by adopting a regular exercise regimen."

Interestingly, statistical associations did not hold for memory improvement, noted Art Kramer, PhD, of Northeastern University in Boston, who was not involved in the study. "Despite the fact that animal studies have found robust memory benefits from exercise, memory benefits were not consistently observed in the human studies that were reviewed."

Gomes-Osman's group searched medical databases in December 2016 for randomized controlled trials that tested the effect of exercise on cognition. After a review of 4,612 relevant studies, they included 98 trials with a total of 11,061 participants in their review. Participants had an average age of 73 and 67.58% were female. Of the total sample, 59.41% of participants were classified as older healthy adults, 25.74% had mild cognitive impairment (MCI), and 14.85% had dementia.

The clinical trials assessed exercises that included walking, biking, dancing, strength training, tai chi, and yoga over spans from 4 weeks to 1 year. Most participants (58.2%) did not exercise regularly before enrolling in a study. Most studies used either high (37.8%) or medium intensity (36.7%) exercise.

Aerobic exercise, strength training, mind-body exercises like yoga and tai-chi, and combinations of exercises all were linked to improved cognitive skills in both healthy individuals and those with MCI. Only the total length of time over a 6-month period was linked to improved cognitive skills, not weekly exercise minutes.

"Although half of the exercise in the studies we assessed was in support of aerobic exercise, it doesn't mean that aerobic exercise necessarily was more effective," said Gomes-Osman. "It just means that more trials have actually studied aerobic exercise."

Within aerobic exercise interventions, the most common exercise was walking, Gomes-Osman noted. "It's encouraging to know that you don't need to be running. If you start walking, you're going to get benefit. But this is not window-shopping; this is walking. It's physical exercise, not just physical activity."

Since most participants did not exercise regularly before joining a trial, this data also "strongly supports that decreasing sedentary behavior is something associated with brain health," Gomes-Osman said.

The effect of exercise on overall cognition is not clear because so few studies have assessed this, she added. And it's possible that future trials -- ones that compare different types of exercise, or evaluate exercise in both physically fit and sedentary people -- may show different results.

Nonetheless, some cognitive benefit is clear. "I believe in giving people knowledge about outcomes," Gomes-Osman said. "If you tell people to be active, they may be less interested overall than if you say 'You can do this, this, this, or this, and you need to keep it up a couple times a week for about 6 months, and then you should get a benefit.' I think that's a better sell for patients."

The study was supported by the Evelyn F. McKnight Institute at the University of Miami Miller School of Medicine.

Gomes-Osman and co-authors disclosed relevant relationships with Neosync, Starlab, Neuronix, Neuroelectrics, Constant Therapy, Cognito, and Novavision.