‘Brisk walking, not a stroll, protects heart’
BODY BENEFITS MOST FROM VIGOROUS EXERCISE, STUDY REVEALS
THOUGH many of us don’t pay any attention to how fast we walk, a major study has now revealed that brisk power walking rather than a relaxed stroll can provide the maximum cardiovascular benefits, The Times reports.
This is because the body gets the most benefit from exercise with more intense interval-style training as it is forced to adapt more quickly.
Researchers at Cambridge and Leicester universities have discovered that the heart is better protected with vigorous exercise in comparison to more relaxed kinds of exercise.
According to health experts, brisk walking and running are both beneficial for keeping your heart healthy. These exercises also help to keep your blood pressure and cholesterol down.
For this study, about 88,000 middleaged British adults were asked to wear Fitbit-style wristbands so that their activities could be monitored for a week. Their vigorous activities such as running and moderate activities such as walking were measured – this data was assessed to check the number of heart attacks, strokes, and heart disease cases that these participants suffered over a period of seven years.
Researchers reportedly found that while exercise in general significantly cut the risk of heart issues, the health benefits for the heart increased with intense activities and with exercises that made people get out of breath.
This means that going for a sevenminute brisk walk or jog can reduce the risk of heart disease more than a daily stroll of 14 minutes, even though the fast exercise would take half the time. An earlier report published in Cleveland Clinic states based on data from 420,727 middle-aged adults in Britain who were studied over a sixyear period, it was found those individuals who walked at a slower pace had a double risk of dying from heart disease than those walking briskly.
“The study found that people who were brisk walkers had significantly lower cardiac and all-cause death, which makes sense because those people have higher cardiorespiratory fitness,” said Dr Haitham Ahmed, MD, a preventive cardiologist who was not a part of the study.
Professor Tom Yates of Leicester University, the report’s senior author, said, “Our analysis confirms that increasing the total amount of physical activity can lower the risk of suffering a heart attack or stroke, but we also found that achieving the same overall amount of physical activity through higher-intensity activity has a substantial additional benefit.
“Our findings support simple behaviour-change messages that ‘every move counts’ to encourage people to increase their overall physical activity, and if possible, to do so by incorporating moderately intense activities.”
He adds, “This could be as simple as converting a leisurely stroll into a brisk walk, but a variety of approaches should encourage and help individuals to find whatever is most practical or enjoyable for them.”
It was discovered the overall rates of heart disease were 14 per cent lower in those who did 20 per cent of their overall physical activity at moderate to vigorous intensity, rather than 10 per cent, even if they exercised as much.
It was found when individuals increased the total amount of time exercising, but not the amount of time exercising at high intensity, there was only negligible improvement in cardiovascular disease rates. When individuals increased the time doing vigorous exercise by 20 per cent – a 23 per cent decrease in disease risk was observed, and when increased to 40 per cent the disease risk fell by 40 per cent.
Dr Paddy Dempsey, a co-author, is quoted as saying, “More vigorous physical activity may also reduce the risk of cardiovascular disease over and above the benefit seen from the total amount of physical activity.”