Daily exercise may boost your heart even in polluted areas
London, July 18: People who continue with their regular physical activities may have reduced risk of first and recurrent heart attack even in the areas with moderate-to-high levels of traffic pollution, a new study suggests.
The findings suggests that higher levels of nitrogen dioxide (NO2) -- a pollutant generated by traffic -- were associated with more heart attacks, but the risk was lower among those who were physically active.
"Our study shows that physical activity even during exposure to air pollution, in cities with levels similar to those in Copenhagen, can reduce the risk of heart attack," said lead author Nadine Kubesch from the University of Copenhagen.
For the study, published in Journal of the American Heart Association, the researchers in Denmark, Germany and Spain evaluated outdoor physical activity levels (sports, cycling, walking and gardening) and NO2 exposure in 51,868 adults aged between 50-65 years.
The researchers also compared self-reported activities and lifestyle factors against heart attack and to estimate average NO2 exposure, they used national traffic pollution monitoring data for each participants' address.
They found that moderate cycling for four or more hours per week cut risk for recurrent heart attack by 31 per cent and there was a 58 per cent reduction when all four types of physical activity (together totalling four hours per week or more) were combined, regardless of air quality.
Those who participated in sports had a 15 per cent lower rate of initial heart attacks and there was a nine per cent risk reduction associated with cycling, the researchers said.
Compared to participants with low residential NO2 exposure, those in higher risk areas had a 17 per cent increase risk in first heart attack and 39 per cent for recurrent heart attack, they added.
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CSK pacer Matheesha Pathirana returns to SL with hamstring injury
Chennai: Chennai Super Kings' Matheesha Pathirana's outing in the ongoing IPL is all but over as the pacer will return to Sri Lanka to recover from a hamstring injury.
The right-arm slinger played six matches in this IPL, picking up 13 wickets at an economy of 7.68.
''Chennai Super Kings wishes Pathirana a quick recovery,'' the CSK stated in a media release on Sunday.
Pathirana last played for CSK during their 78-run win over Sunrisers Hyderabad, where he bowled two overs and picked up the wickets of Aiden Markram and Heinrich Klaasen.
Pathirana missed the match against Punjab Kings at Chennai on May 1 with England pacer Richard Gleeson replacing him. The unavailability of Pathirana is a big setback to CSK as their bowling stocks have dwindled drastically in the last few days.
Pace bowling all-rounder Deepak Chahar too is set to miss the remainder of the IPL with a niggle he sustained during the match against Punjab at Chepauk. Chahar walked off the field after bowling just two balls and Shardul Thakuar had completed the over for him.
''Deepak Chahar doesn't look good. The initial feeling wasn't great. So, I'm hoping for a more positive report when the physio and the doctor have a look,'' CSK coach Stephen Fleming had said after that match.
CSK will also be without Sri Lankan spinner Maheesh Theekshana at least for a couple of more matches as he is expected to fly back to Sri Lanka to complete his USA visa process ahead of next month's T20 World Cup in the Americas.
Bangladesh pacer Mustafizur Rahman's IPL stint too came to an end in the previous match against PBKS after he has joined the national team for the home T20I series against Zimbabwe.
