Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Teens cool off from sports with each succeeding winter

Five-year Canadian study, published in Annals of Epidemiology, finds link between seasons and declines in exercise patterns over time

Although winter's grasp has subsided to spring, its effects could have a long term impact on the exercise patterns of teenagers.

According to a five-year study published in the Annals of Epidemiology, while teens are generally more active in warmer months, significant drops in physical activity during winter months contributes to a general slowdown in exercise habits throughout adolescence that could persist over time.

Study investigators – from the Centre de Formation Médicale du Nouveau-Brunswick of the Université de Moncton and Université de Sherbrooke, the Université de Montréal and McGill University – counter that declines in physical activity could be offset by promoting a diversity of physical activities including those that can be enjoyed during winter.

"While physical activity augments in spring and summer, these increases do not compensate for winter drop offs, which contribute to declining physical activity throughout adolescence," says Mathieu Bélanger, lead author of the study, research director at the Centre de formation médicale du Nouveau-Brunswick and epidemiologist at the Centre de recherche Beausejour. "Throughout our five-year study, the average daily number of physical activity sessions among participants decreased by nearly one third. The sharpest declines occurred during the coldest months."

As part of the study, 1293 students initially aged 12 to 13 years were monitored from grade 7 to grade 11. Participants were recruited from 10 schools in the Montreal area and were asked to report involvement in physical activity over different seasons. Results were then compared to weather data from Environment Canada.

"Poor weather is one of the most frequently reported barriers to the practice of physical activity," says Jennifer O'Loughlin a researcher from the Université de Montréal's department of social and preventive medicine Centre Hospitalier de l'Université de Montréal.

"In this study we found weather conditions did affect participation in physical activities, but the effects of climate were very modest, suggesting the impact of seasons on physical activity is not solely related to weather changes," says O'Loughlin.

Bélanger and colleagues hypothesised that weather curtailed spontaneous and unplanned physical activities among teens, since adolescents favour structured activities. What's more, planned activities unfold to preset schedules and are less likely to be cancelled because of inclement weather.

The research team advises that winter activities of all types be promoted to curb drops in physical activity among teens. "We are not advocating that indoor physical activities be preferred to outdoor activities, simply that efforts be made to ensure that a variety of activities be available during winter," cautions Bélanger.

About the study:

"Influence of weather conditions and season on physical activity in adolescents," in the Annals of Epidemiology, was authored by Mathieu Bélanger (Centre de formation médicale du Nouveau-Brunswick, Université de Moncton and Université de Sherbrooke; and Centre de recherche Beauséjour, Regional Health Authority A), Katherine Gray-Donald (McGill University), Jennifer O'Loughlin (Université de Montréal and Centre Hospitalier de l'Université de Montréal), Gilles Paradis (McGill University), and James Hanley (McGill University).

Sylvain-Jacques Desjardins | EurekAlert!
Further information:

More articles from Studies and Analyses:

nachricht Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University

nachricht New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Space observation with radar to secure Germany's space infrastructure

Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.

The "traffic situation" in space is very tense: the Earth is currently being orbited not only by countless satellites but also by a large volume of space...

Im Focus: Researchers Discover New Anti-Cancer Protein

An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.

The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...

Im Focus: Researchers at Fraunhofer monitor re-entry of Chinese space station Tiangong-1

In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.

Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...

Im Focus: Alliance „OLED Licht Forum“ – Key partner for OLED lighting solutions

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.

They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...

Im Focus: Mars' oceans formed early, possibly aided by massive volcanic eruptions

Oceans formed before Tharsis and evolved together, shaping climate history of Mars

A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

New solar solutions for sustainable buildings and cities

23.03.2018 | Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

Latest News

Don't Give the Slightest Chance to Toxic Elements in Medicinal Products

23.03.2018 | Life Sciences

Sensitive grip

23.03.2018 | Materials Sciences

No compromises: Combining the benefits of 3D printing and casting

23.03.2018 | Process Engineering

Science & Research
Overview of more VideoLinks >>>