Friday, March 22, 2019

Acquireting fit in middle age as favourable as starting early – study | Science

Acquireting active in midlwhethere could be as good for you as starting young when it comes to reducing the risk of an early death, researchers have proposeed.

But experts say the study, which looked at people’s samples of exercise as they aged and their subsequent death records, also shows it does not do to rest on your laurels: the benefits fade once exercise declines.

“If you maintain an active lwhetherestyle or participate in some sort of exercise over this window of time [from youth to middle age], you can reduce your risk for dying,” said Dr Pedro Saint-Maurice, the lead author of the research, from the National Cancer Institute in the US.

“If you are not active and you get to your 40s-50s and you decide to become active, you can still endelight a lot of those benefits.”

The study, published in the journal Jama Network Open, was based on data from more than 300,000 Americans aged 50-71 who undertook a questionnaire in the mid-1990s. They were asked to estimate the extent of their moderate to vigorous leicertain exercise at dwhetherferent stages of their lwhethere. Researchers then used national records to track who died in the years up to the end of 2011, and from what.

After taking into account factors including age, sex, smoking and diet, the team found that those who were exercising into middle age had a lower risk of death from any cause in the years that followed than those who had never carried out any leicertain exercise. However, when the team looked at 10 dwhetherferent samples in the way people were active over their lwhethere, it found a surprise.

Men and women who ramped up their activity gradually to about seven hours a week by the age of 40-61 reduced their risk of death from any cause in the years that followed by about 35%. The benefit was similar to that seen for people who reached and maintained similar activity from their teens or 20s onwards, or who exercised at such a level when young and middle-aged but dipped in activity in their 30s.

Similar trends were identwhetheried when the team looked at the relationship between samples of exercise and two specific causes of death, cardiovascular disease and cancer, though the benefits were larger for the former than the latter.

However, the study found that the protective effect of exercise did not final for ever: people whose levels of leicertain exercise dwindled by middle age had no dwhetherference in the risk of an early death to those who had always been sofa potatoes.

“If you have been active and you slowly decrease your exercise participation as you age, you lose a lot of the benefits that we know are associated with exercise,” Saint-Maurice said.

While the team said the exercise levels recorded in the study were only wide estimates, the findings showed that samples of exercise were important.

But the study has limitations, including that it is based on individuals recalling how active they were many years before, as well as problems of such data involving wide estimates – although the team did check whether people generally gave similar answers when asked to repeat the questionnaire after six months. What’s more, the research looked only at mortality, not other aspects of health such as levels of sickness and disease.

Dylan Thompson, a professor of human physiology at the University of Bath, who was not involved in the study, said it also did not consider exercise taken as part of daily lwhethere rather than for leicertain.

Nonetheless, he said, the message was positive. “This adds to the growing body of evidence about the importance of physical activity and exercise across the lwhethere course, and indicates that it is never too late to start.”

Dr Charlie Foster, of the University of Bristol, said it was important to focus on not only physical activity but strength exercises too. “Staying strong and getting stronger would also increase your health and decrease your risk of these chronic diseases,” he said.

Previous Post
Next Post

post written by: