Navigation Links
Physical activity, healthy eating and BMI not linked in older teens: study
Date:4/30/2008

This release is also available in French.

Contrary to what many researchers expect, physically active older teens dont necessarily eat a healthier diet than their less-active contemporaries.

And there appeared to be no link between body mass index (BMI) values and levels of physical activity, the research showed.

The study of 900 Vancouver-area teenagers in Grades 10 through 12 was conducted by Dr. Catherine Sabiston, of McGill University, and P.R.E. Crocker, of the University of British Columbia (UBC). The results of their research conducted in Vancouver while Dr. Sabiston was still a PhD student at UBC were published in the Journal of Adolescent Health earlier this year.

Overall, said Sabiston, now an assistant professor in McGills Department of Kinesiology and Physical Education, boys reported participating in more physical activities but ate a less-healthy diet than did girls. Moreover and contrary to established wisdom in the field researchers found that people with healthier BMI values were no more likely to be physically active than those with higher, unhealthier values. Unexpectedly, it was the latter who were more likely to eat a healthier diet.

A lot of people are surprised, Dr. Sabiston said, but when you think about it, BMI doesnt have a huge impact on physical activity. And in terms of diet, it actually makes sense that someone who is not happy with their body might try to eat more healthily.

According to Sabiston, who is also director of McGills Health Behaviour and Emotion Lab, the results showed only a very weak correlation between physical activity and healthy eating, and virtually no correlation between an individuals BMI and his or her level of physical activity. The study was undertaken to test a comprehensive model of physical activity and healthy eating behaviour in teens aged 15 to 18, partially in response to two perceived problems with existing research in the field.

First of all, older adolescents are an unrepresented sample in research studies, Sabiston said. Researchers have generally looked at youths or at university populations and have completely missed this unique, intermediate age group. Second, Sabiston said, many researchers have traditionally treated physical activity and healthy eating as separate phenomena, and have only rarely explored their similarities and differences simultaneously.

The study also found a significant difference in the way boys and girls approach physical activity and healthy diet. Boys, Sabiston said, need to attach value to a healthy diet and feel confident in their ability to follow a healthy diet before theyll actually do it. Girls, she said, regardless of how they feel about their ability to eat a healthy diet, only need to feel it is important to do so before theyll eat properly.

What this study really says, Sabiston explained, is that one cannot assume that someone who is physically active necessarily eats a healthy diet or the reverse, that someone who is more sedentary or has a high BMI by definition eats a diet of junk food.

This study drives home the point that as a society, were primarily focused on extrinsic things like appearance and weight versus the betterment of health, Sabiston said. From a public health perspective, this means we should probably focus on people who are at a healthy weight or even underweight, and emphasize that healthy eating is not just about weight-change.


'/>"/>

Contact: Mark Shainblum
mark.shainblum@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Related medicine news :

1. National Association for Sport and Physical Education Partners with S&S Worldwide to Help Improve Childrens Fitness
2. Atlanta Falcons Physical Therapy Centers Set to Launch This Fall
3. Cognitive Activities Protect Against Alzheimers -- Social and Physical Activities Not Enough
4. Physical Therapist Provides Injury Analysis for Fantasy Football
5. Empowerment Program Gets Patients on the PATH to Managing the Physical and Emotional Effects of Psoriatic Arthritis
6. This October, the American Physical Therapy Associations National Physical Therapy Month to Focus on Nations Obesity Epidemic
7. New study likely to fuel debate over annual physical exams
8. Blue Cross of California and the California Governors Council on Physical Fitness and Sports Launch Live Like a Champion Tour
9. The Cooper Institutes FITNESSGRAM Selected as Statewide Physical Fitness Assessment Tool
10. The impact of physical activity on weight-bearing knee joint
11. The Physical Therapy Profession Remains in High Demand
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... CA (PRWEB) , ... October 12, 2017 , ... ... Cheng, are now treating sleep apnea using cutting-edge Oventus O2Vent technology. ... a serious sleep disorder characterized by frequent cessation in breathing. Oral appliances can ...
(Date:10/12/2017)... ... 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ), one of the ... new design of the shoulder pad. The shoulder pad provides optimal support and ... pain while using cold therapy. By utilizing ice and water that is circulated from ...
(Date:10/12/2017)... Maryland (PRWEB) , ... October 12, 2017 , ... ... magnetic drug delivery system that we intend to develop to enable prevention of ... can lead to severe hearing loss, especially in pediatric patients. For cisplatin, hearing ...
(Date:10/12/2017)... ... 12, 2017 , ... Leading pediatric oncology experts at Children’s National Health ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired ... Cancer and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief ...
(Date:10/12/2017)... ... ... Health Literacy Innovations (HLI), creator of the Health Literacy ... Patient Education Network (CPEN), an independent professional organization that shares best practices in ... , As CPEN’s strategic partner, HLI will help support CPEN members by sharing ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... , Oct. 12, 2017   Divoti USA ... Jewelry up to the standard of the latest FDA requirements, which ... 2017). Anyone in need of Medical ID jewelry such ... Alert Jewelry are engraved in terms of the new ... Divoti offers ...
(Date:10/11/2017)... , Oct. 11, 2017  Caris Life Sciences ® ... fulfilling the promise of precision medicine, today announced that ... Caris, Precision Oncology Alliance™ (POA) as its 17 th ... the St. Jude Crosson Cancer Institute will help develop ... use of tumor profiling, making cancer treatment more precise ...
(Date:10/10/2017)... , Oct. 10, 2017  NDS received FDA 510(k) clearance in ... medical-grade battery-powered display stand specifically designed for endoscopy environments. An innovative ... into a clinical solution to support the improvement of patient outcomes, ... Design ... Solution ...
Breaking Medicine Technology: