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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New Delhi, Oct 24: The sports ministry on Thursday announced the discontinuation of the Dhyan Chand Award for lifetime achievement from this year onwards and the introduction of the Arjuna Award Lifetime in its place in a bid to "rationalise" the various sporting honours of the country.

Instituted in 2002, the Dhyan Chand Lifetime Award, named after hockey wizard Major Dhyan Chand, is given to individuals in disciplines that are part of the Olympic Games, Paralympic Games, Asian Games and Commonwealth Games, among others.

In 2023, the award was given to former shuttler Manjusha Kanwar, ex-hockey exponent Vineet Kumar and kabaddi player Kavitha Selvaraj.

"The various schemes for sports awards have been rationalised wherein Arjuna Award (Lifetime) has been introduced in place of Dhyan Chand Award. To recognise the efforts of coaches at grassroots/development level, they are now eligible for the Dronacharya Award," said a ministry statement.

"The Arjuna Award (Lifetime) has been introduced and will be given for life time contribution to sports development.

"Further, to recognize the Khelo India scheme, the Maulana Abdul Kalam Azad (MAKA) Trophy will be given to the University for Overall Top Performance in Khelo India University Games," it added.

The last date for applying for the national sports awards for 2024 is November 14.