Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Children living near green spaces are more active

13.03.2009
Children at high risk of obesity who live near parks and recreation areas are apt to participate in walking activities more often, researchers reported at the American Heart Association's Conference on Nutrition, Physical Activity and Metabolism.

In a Canadian study, the presence of nearby parks was strongly associated with girls walking to school and boys engaging in leisure walking. For every additional park located within a half mile of their home, the likelihood of walking to school more than doubled among girls and leisure walking by boys increased by 60 percent. Results were similar even after taking into account family income and the average level of education in the neighborhood, an indicator of area disadvantage.

"There was a strong association between walking and the number of nearby public open recreational spaces, including neighborhood parks, playgrounds and sports fields," said Tracie A. Barnett, Ph.D., lead author of the study and a researcher at Sainte-Justine Hospital Research Center and Université de Montréal in Montreal, Canada. "We were able to relate the proximity and number of parks to how often children aged 8-10 years walked. This is important because active transportation is a promising public health strategy for increasing overall physical activity, and for helping to curb the obesity epidemic. We know that walking to school has been decreasing steadily for the past 30 years; concurrent increases in overweight and obesity suggest that these two phenomena may be linked."

The results are based on the first 300 families enrolled into the Quebec Adipose and Lifestyle Investigation in Youth (QUALITY) study in which researchers are following over 600 children and both biological parents to study the natural history of excess weight and cardiometabolic risk in children.

"Obesity in children and adolescents has tripled in the past 20 or so years," Barnett said. "Although obesity has many causes, this relatively sudden and steep increase suggests that the drivers of the obesity epidemic are largely environmental rather than biological or genetic in nature."

In this study, researchers examined the relationship between park availability and proximity, and walking. All the children were considered at high risk for future obesity because at least one of their parents was obese. Clinic visits determined body fat distribution, fitness, metabolic, genetic/familial, and behavioral factors that could lead to obesity. Both parents and children completed questionnaires during the clinic visit, and children provided a seven-day recall of walking for leisure and their usual methods of getting to and from school. Location of parks was obtained using a geographic information system.

In this sample, researchers found:

One-third of the children walked to and from school.

Parks located within approximately one half mile had the strongest association with walking in this age group.

A greater number of parks were associated more with purpose-driven walking in girls and with leisure walking in boys.

"Parks may benefit girls and boys differently, but are associated with increased overall walking for both," said Barnett, who is also assistant professor of Social and Preventive Medicine at the Université de Montréal.

"In the past few decades we have become more sedentary due to the increased use of labor-saving devices, motorized transportation, television and computers," she said. "In addition, children are spending more time inside, yet we know that spending time outdoors is an important determinant of activity.

In future urban improvements, consideration must be given to parks, outdoor recreational areas and walking or cycling infrastructure in order to increase active living. Equally important is that the parks and recreational areas are well maintained and are safe."

The cross-sectional study provided a "snapshot" look at the environment, but researchers will be following these families over the next 10 years. The researchers plan to follow the children until age 18 to determine the effects of their environments on the development of obesity.

While this study does not provide specific information on the mechanism by which the presence of parks might affect activity in other places, it does provide useful data on how differences in urban environments may translate into differences in lifestyle activities, researchers said.

As the children become teenagers, the environment will evolve, especially as they attain more freedom and become more independent, Barnett said. "Factors that influence their health and lifestyle behaviors will change and these will need to be reassessed."

An American Heart Association statement released in June of 2008 says, "walkable" neighborhoods, with adequate sidewalks and areas for physical activity, can play an important role in combating the rise in obesity rates by making it easier to get daily exercise.

Karen Astle | EurekAlert!
Further information:
http://www.heart.org

More articles from Studies and Analyses:

nachricht Innovative genetic tests for children with developmental disorders and epilepsy
11.07.2018 | Christian-Albrechts-Universität zu Kiel

nachricht Oxygen loss in the coastal Baltic Sea is “unprecedentedly severe”
05.07.2018 | European Geosciences Union

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: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Global study of world's beaches shows threat to protected areas

19.07.2018 | Earth Sciences

New creepy, crawly search and rescue robot developed at Ben-Gurion U

19.07.2018 | Power and Electrical Engineering

Metal too 'gummy' to cut? Draw on it with a Sharpie or glue stick, science says

19.07.2018 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>