Thursday October 18, 2018

According to Researchers, Exercising 4-5 Times a Day Delays Ageing

Want to stay young for long? If so, start exercising four to five times a day as it may help keep your heart stay healthy and slow down ageing, according to researchers.

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Exercise, representational image . IANS
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Want to stay young for long? If so, start exercising four to five times a day as it may help keep your heart stay healthy and slow down ageing, according to researchers.

Research showed that different sizes of arteries are affected differently by varying amounts of exercise.

While exercising for about two to three days a week for about 30 minutes may be sufficient to minimise stiffening of middle-sized arteries, exercising for about four to five days a week is required to keep the larger central arteries youthful.

The study would help “develop exercise programmes to keep the heart youthful and even turn back time on older hearts and blood vessels”, said one of the study authors, Benjamin Levine from the University of Texas.

With age, arteries — which transport blood in and out of the heart — become prone to stiffening, increasing the risk of heart diseases.

For the study, published in The Journal of Physiology, the team examined 102 people over 60 years old, with a consistent lifelong exercise history.

workout
Exercise alone is not enough to keep you in shape. You will have to do a few more extra things before and after your workout to stay fit! Pixabay

The participants were divided into four groups depending on their exercise history — Sedentary: less than 2 exercise sessions per week; Casual Exercisers: 2-3 exercise sessions per week; Committed Exercisers: 4-5 exercise sessions per week and Masters Athletes: 6-7 exercise sessions per week.

A lifelong history of casual exercise (two-three times a week) resulted in more youthful middle-sized arteries, which supply oxygenated blood to the head and neck.

However, committed exercisers (4-5 times per week) also had more youthful large central arteries, which provide blood to the chest and abdomen, in addition to healthier middle-sized ones.

Also Read: Drinking Water Boosts Mental Skills in Elders Who Exercise

Larger arteries need more frequent exercise to slow down ageing, the researchers said.

The findings will help see “if we can reverse the ageing of a heart and blood vessels by using the right amount of exercise at the right time”, Levine explained. (IANS)

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Severity Of A Stroke Reduces With Light Exercise: Study

Regular exercise helps the brain to maintain healthy arteries that have more complex networks.

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A stroke patient holds a flower in the therapeutic garden of the Acute Neurological Rehabilitation Unit at Lausanne University Hospital in Lausanne, Switzerland. VOA

People who regularly engage in light to moderate physical activity — like walking four hours a week or swimming two hours weekly — might have less severe strokes than individuals who aren’t as active, a Swedish study suggests.

Researchers examined data on 925 patients who were treated for strokes at Sahlgrenska University Hospital in Gothenburg, Sweden, between 2014 and 2016. Overall, four in five of these patients had mild strokes.

Slightly more than half of the patients were inactive before their strokes. Compared with this inactive group, people who got at least some exercise before their strokes were twice as likely to have mild strokes, researchers reported in Neurology.

“We knew from earlier research that physical activity could reduce stroke incidence,” lead study author Malin Reinholdsson of the University of Gothenburg said by email. “However, whether or not pre-stroke physical activity could also influence stroke severity was not clear.”

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Being physically active can also help prevent risk factors for stroke, like obesity, diabetes and high blood pressure Pixabay

Patients in the study were 73 years old on average and most of them had what’s known as an ischemic stroke, the most common kind, which occurs when a clot blocks an artery carrying blood to the brain. About 6 percent of patients had hemorrhagic strokes, a less common type that is caused by a ruptured blood vessel in the brain.

Surveyed about exercise

To assess pre-stroke activity levels, researchers surveyed participants about the duration and intensity of any exercise they got before they were hospitalized.

Researchers defined “light” activity as walking at a leisurely pace for at least four hours a week, and classified exercise as “moderate” intensity when people did things like swimming, running or walking briskly for two to three hours weekly.

Among 481 people who were inactive, 354, or 74 percent, had mild strokes.
For those who managed light physical activity, 330, or 86 percent, had mild strokes. And among the 59 participants who got moderate intensity exercise, 53, or 90 percent, had mild strokes.

exercise
Yoga is also a good physical exercise. Wikimedia

Age also mattered, with higher odds of a mild stroke for younger people in the study.

The study wasn’t designed to prove whether or how the amount or intensity of exercise might influence stroke severity.

Another limitation is that researchers relied on stroke survivors to accurately recall their previous exercise habits, and memory is often compromised after a stroke.

Even so, the results add to evidence suggesting that an active lifestyle can both lower the risk of stroke and reduce the chances that a stroke will be severe, said Nicole Spartano, co-author of an accompanying editorial and a researcher at Boston University School of Medicine.

“Regular exercise helps the brain to maintain healthy arteries that have more complex networks,” Spartano said by email. “So when a blockage [stroke] happens in one area, there may be another route to provide oxygen to the affected area.”

Also Read: A Majority of Children Die Due to Lack of Basic Healthcare Facilities: UN

Being physically active can also help prevent risk factors for stroke, like obesity, diabetes and high blood pressure, Spartano noted.

“This study is exciting because it suggests that you might not have to do a lot of intense exercise to see an effect,” Spartano said. (VOA)