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More physical activity before a heart attack may reduce risk for a second one

More physical activity before a heart attack may reduce risk for a second one
More physical activity before a heart attack may reduce risk for a second one
(Hirurg/E+ by way of Getty Visuals)

Remaining bodily lively in middle age – in advance of having a heart assault – may possibly decrease the possibility of obtaining a 2nd heart assault, in accordance to new study.

Scientists have extensive known that standard physical action will help avert stroke, heart attacks and other sorts of cardiovascular disorder. But several studies have explored whether workout shields against an additional major cardiovascular party following an original heart assault.

Scientists looked at information from 1,115 adults in Mississippi, North Carolina, Maryland and Minnesota who had a coronary heart assault sometime between the mid-1990s and the conclude of 2018. Their ordinary age was 73 at the time of the heart assault.

Then the researchers appeared at how considerably research members claimed they exercised at two time points in the decades just before their coronary heart attack. Employing a questionnaire that incorporated athletics, leisure time things to do and get the job done-connected actual physical activity this sort of as home chores, individuals obtained a full score.

Following a median follow-up of two several years, those people in the best physical activity group experienced a 34{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} reduced danger of having a second coronary heart assault in comparison with these in the cheapest action group.

Getting a historical past of large bodily activity was in particular beneficial in the initial year just after a coronary heart assault, when the risk of having one more one particular was 63{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} decreased than for those people in the minimum lively group. Also during that very first year publish-coronary heart attack, the chance of dying from any cause was 39{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} decrease in the most active group in contrast with the the very least active.

The examine was presented Saturday at the American Heart Association’s Scientific Sessions. The conclusions are regarded as preliminary until full results are posted in a peer-reviewed journal.

“Our examine gives more evidence for the price of keeping higher bodily exercise ranges at center age in advance of you have a heart assault, which can lead to a far better prognosis afterward,” explained the study’s lead researcher, Yejin Mok.

Nonetheless, she mentioned, it’s crucial not to imagine of physical action as an all-or-nothing at all pursuit.

“The concept is to just transfer your human body,” said Mok, a investigate associate at Johns Hopkins Bloomberg University of Public Wellness in Baltimore. “Much more exercise is good, but even a minimal bodily action is crucial for taking care of cardiovascular sickness risk.”

Federal actual physical exercise recommendations advise adults to get at the very least 150 minutes for each week of reasonable-depth aerobic action, 75 minutes per week of vigorous cardio action, or a combination of each. Muscle-strengthening routines at the very least two times a week also are proposed.

Mok stated the examine was confined by its reliance on self-noted questionnaires. She referred to as for foreseeable future research that utilizes smartwatches and other health and fitness-tracking units “that objectively evaluate bodily activity.”

Michael LaMonte, a professor of epidemiology at the University at Buffalo in New York, mentioned the review was exciting but experienced some limits to look at when decoding the results. For instance, the examine was observational and didn’t account for various factors just after the preliminary heart attack, together with activity stages, medicines, cardiac methods and other therapeutic life-style modifications.

Even so, he explained, the analyze took “a intelligent method to understand how robust the cardiovascular advantage conferred by actual physical exercise is, in regard to one’s capacity to endure a main bodily insult this kind of as coronary heart attack.”

LaMonte, who was not concerned in the new study, said long term scientific tests are essential that seem at how a adjust in common daily physical action soon after a heart assault impacts foreseeable future overall health.

Physicians, he claimed, should really suggest sufferers to meet the bare minimum tips for physical action. He also inspired anyone to keep in mind the mantra “Sit less, go much more.”

“Even standing up periodically or going for walks a pair minutes at get the job done or house will get your skeletal muscle mass, heart and metabolic rate activated, which we imagine offsets some of the detrimental outcomes of extended sedentary time, which is so customary in today’s earth,” LaMonte said.

Find much more information from Scientific Sessions.

If you have issues or opinions about this American Heart Affiliation Information tale, be sure to e mail [email protected].

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How much should you walk every day to reduce risk?

How much should you walk every day to reduce risk?

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How many steps a day help offset dementia risk? Researchers may now have the answer. Image credit: Christopher Fanelli/EyeEm/Getty Images.
  • Dementia affects more than 55 million people worldwide and is the seventh leading cause of death globally.
  • With the proportion of older people in the population increasing, the number of dementia cases is also on the rise.
  • There is mounting evidence that regular physical exercise not only benefits general health, but is also one of the most effective ways to reduce the risk of developing dementia.
  • In good news for those who struggle to fit exercise into their daily routine, a new study has shown that walking around 4,000 steps a day may reduce dementia risk by 25{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}.
  • Upping their daily step count to just under 10,000 could halve a person’s risk of developing dementia.

As the global population ages, cases of dementia are also on the rise worldwide. The World Health Organization (WHO) states that some 55 million people currently have dementia, and the number is set to rise to 139 million by 2050.

The Centers for Disease Control and Prevention (CDC) estimate that Alzheimer’s disease, the commonest form of dementia, affects around 5.8 million people in the United States alone.

The greatest risk factors for dementia, according to the Alzheimer’s Society, are aging and genetics. Dementia is most common in those aged over 75, and having a close relative with dementia may increase a person’s risk of developing the disorder.

Other risk factors that we cannot control include sex — females are more at risk than males — and ethnicity. However, lifestyle changes, such as increasing physical exercise, controlling blood pressure, and keeping the brain stimulated, can decrease a person’s risk of dementia, even for those who have one or more risk factors.

Dr. Anton Porsteinsson, professor and director of the Alzheimer’s Disease Care, Research and Education Program (AD-CARE) at the University of Rochester Medical Center, told Medical News Today:

“A broad, healthy approach factoring in lifestyle, diet, exercise, cognitive stimulation, socialization, and sleep all make a difference. Many of them [can be effective] even if started later in life.”

And physical exercise need not mean sweating it out at the gym or taking up a new sport.

According to a study recently published in JAMA Neurology, simply increasing the number of steps a person takes each day can decrease their dementia risk by as much as 50{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}.

The study used data from the UK Biobank. The 78,430 participants, of whom 44.7{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} were male and 55.3{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} female, had a mean age of 61.1 years. All participants were free of cardiovascular disease and dementia when they enrolled in the study. Researchers followed up with participants after a median of 6.9 years (6.4–7.5 years).

For the study, participants had to wear an accelerometer on their dominant wrist 24 hours a day, 7 days a week, to measure physical activity. The researchers then used an algorithm to work out the step count from the data collected by the accelerometer.

The researchers controlled for variables such as age, sex, race, socioeconomic status, smoking, overall health, and diet when analyzing the data.

At follow-up, 866 participants, or 1.1{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}, had developed dementia.

While welcoming the study findings, Dr. Claire Sexton, Alzheimer’s Association senior director of scientific programs and outreach, who was not involved in the study, told MNT:

“There are a few important caveats of this study. The population sampled was majority white, and therefore may not be generalizable to other race/ ethnic groups. This study also does not demonstrate definitive causation between step count and dementia risk; therefore, more research is needed.”

“The Alzheimer’s Association is conducting a clinical trial combining exercise with other lifestyle factors, like diet and social/ cognitive engagement, to determine if these factors in combination reduce risk of cognitive decline,” she added.

Dr. Porsteinsson agreed: “There are definite limitations to observational cohort studies but advantages as well. They are hypothesis-generating, that is they point us toward what we may want to study further in a controlled, randomized study. The good news here is that there is a bulk of evidence that suggests that exercise is beneficial in staving off dementia.”

“This is an important study that may help inform public health guidelines around the amount of physical activity necessary to reap health benefits,” said Dr. Sexton.

“These results are not surprising given the robust data we have linking physical activity and better cognition. A strength of this paper is it used an objective, widely-understood measure of step count rather than self-reported data,” she noted.

The researchers found that both the number of steps and stepping intensity were associated with reduced dementia risk. For the greatest benefit — a 50{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf} reduction in dementia risk — participants had to walk around 9,800 steps per day. Above this number, no further benefit was seen.

However, the good news for those who cannot achieve this many steps was that just 3,826 steps a day reduced dementia risk by 25{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}.

Dr. Porsteinsson agreed that any exercise will help reduce risk. “[It’s] never too late to get started and even a relatively small effort is beneficial and can then be added to as endurance improves,” he told us.

Purposeful steps, defined as more than 40 steps per minute, such as when going for a walk, increased the association with reduced dementia risk.

“Here, we see a ‘dose’ effect, that is, more intense and purposeful walking is more beneficial than leisurely walking. Also, people often walk with others (walk and talk) so you can get a social component and an interactive component in as well.”

– Dr. Anton Porsteinsson

This study adds to building evidence that staying active as you age can maintain physical and mental health and improve longevity.

Another large-scale study of almost 650,000 military veterans found that being physically fit reduced dementia risk by up to 33{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}. In this study, even a small amount of exercise was found to help reduce dementia risk.

An analysis from the Alzheimer’s Society of 11 studies found that, out of taking regular exercise, not smoking, moderating alcohol intake, maintaining a healthy body weight, and eating a healthy diet, it was regular exercise that had the greatest impact on dementia risk.

For Alzheimer’s disease, regular exercise reduced risk by up to 45{e4f787673fbda589a16c4acddca5ba6fa1cbf0bc0eb53f36e5f8309f6ee846cf}.

“The bottom line is we know physical activity supports good cardiovascular health — and what’s good for the heart is good for the brain. Find something you enjoy doing and stick to it.”

– Dr. Claire Sexton