As many of our readers will know, last month the Canadian Obesity Network Student and New Professionals organization at the University of Ottawa hosted an event titled “Forks vs Feet“, which had Dr Bob Ross and Dr Yoni Freedhoff debating the relative importance of diet and exercise for weight loss and weight maintenance. The event was (in our opinion) a huge success – the debate itself was highly entertaining and informative, and has also reached a much larger audience than we had hoped for. Roughly 150 people attended the debate in person, another 80 watched live online, and more than 600 others have viewed the video online since the event itself. The debate was even mentioned in yesterday’s Globe and Mail, one of Canada’s most-read newspapers.
Today we have the high def video of that debate which was recorded by our friend and colleague Adrian Ebsary from Peer Review Radio, as well as a podcast of the audio (email subscribers can see both at visiting the blog).. The debate lasted over an hour, so Adrian has split the video into three sections – Exercise, Diet, and Questions/Final Statements.
Our friend Colby Vorland of Nutritional Blogma has painstakingly found every single reference discussed by Drs Ross and Freedhoff during their debate (nicely done, Colby!). The full list can be found here and I have also pasted the list below the fold at the bottom of this post.
A reminder that email subscribers can listen to the podcast here on the blog, and can also download it directly by clicking here (it’s released with a creative commons license, so feel free to embed or sample it on other sites however you please). And to have all of our podcasts delivered directly to your ipod, you can also subscribe via itunes. To view all of our former podcasts, click here.
Thanks once again to everyone who helped organize and promote the debate here in Ottawa and online, to Adrian for the fantastic video (and for figuring out a way to get such a massive video file online!) and of course to our fantastic debaters and moderator.
We are working on another obesity-related debate for next year that we hope will also appeal to both researchers and the general public alike. More details to come as we find out about our funding situation.
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[From Colby Vorland of Nutritional Blogma]:
It is difficult to see their references in the videos but I tracked them down and pulled them for convenience:
From Dr. Ross’ Presentation:
- Update 5/25/11: PLoS One study by Tim Church et al. was just published: Church, TS et al. (2011). PLoS One. Trends over 5 Decades in U.S. Occupation-Related Physical Activity and Their Associations with Obesity.
- Tjepkema M & Shields M (2006). Health Reports. Trends in Adult Obesity.
- Janssen I et al. (2005) Comparison of overweight and obesity prevalence in school-aged youth from 34 countries and their relationships with physical activity and dietary patterns.
- Miller WC et al. (1997). Int J Obesity. A meta-analysis of the past 25 years of weight loss research using diet, exercise or diet plus exercise intervention.
- Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults (1998)
- Ross R, Janssen I (2001) Medicine & Science in Sports & Exercise. Physical activity, total and regional obesity: dose-response considerations.
- Ross R et al. (2004) Obesity Research. Exercise-induced reduction in obesity and insulin resistance in women: a randomized controlled trial.
- Wei M et al. (1999) JAMA. Relationship Between Low Cardiorespiratory Fitness and Mortality in Normal-Weight, Overweight, and Obese Men.
- Katzmarzyk P et al. (2004) Arch Intern Med. Cardiorespiratory Fitness Attenuates the Effects of the Metabolic Syndrome on All-Cause and Cardiovascular Disease Mortality in Men. (on slide but skipped because of time in presentation)
- Perseghin G et al. (1996). NEJM. Increased Glucose Transport–Phosphorylation and Muscle Glycogen Synthesis after Exercise Training in Insulin-Resistant Subjects.
- Röckl et al. (2008). IUBMB Life. Signaling Mechanisms in Skeletal Muscle: Acute Responses and Chronic Adaptations to Exercise.
- Cannot make out the reference in one of his summary slides titled “Strategies for Reducing Obesity-Related Health Risk”
From Dr. Freedhoff’s Presentation:
- Manios Y et al. (2009) Obesity. Obesity and Television Watching in Preschoolers in Greece: The GENESIS Study.
- Chaput JP et al. (2011) AJCN. Video game playing increases food intake in adolescents: a randomized crossover study.
- Metcalf BS et al. (2008) Arch Dis Child. Physical activity at the government-recommended level and obesity-related health outcomes: a longitudinal study (Early Bird 37).
- Wilkin TJ et al. (2006) Int Journal of Obesity. Variation in physical activity lies with the child, not his environment: evidence for an ‘activitystat’ in young children (EarlyBird 16).
- Harris KC et al. (2009). CMAJ. Effect of school-based physical activity interventions on body mass index in children: a meta-analysis.
- Westerterp KR & Speakman JR (2008). Int Journal of Obesity. Physical activity energy expenditure has not declined since the 1980s and matches energy expenditures of wild mammals.
- Luke A et al. (2008). AJCN. Energy expenditure does not predict weight change in either Nigerian or African American women.
- Dugas LR et al. (2011). AJCN. Energy expenditure in adults living in developing compared with industrialized countries: a meta-analysis of doubly labeled water studies. *I blogged about this one here
- Ross R et al. (2000). Ann Inter Med. Reduction in Obesity and Related Comorbid Conditions after Diet-Induced Weight Loss or Exercise-Induced Weight Loss in Men; A Randomized Controlled Trial.
- May AM et al. (2010). AJCN. Effect of change in physical activity on body fatness over a 10-y period in the Doetinchem Cohort Study.
- Lee I et al. (2010). JAMA. Physical Activity and Weight Gain Prevention.
- “The APPEAL Study” as blogged about by Yoni here in 2008, still unpublished maybe?
- Rampersaud E et al. (2008). Arch Inter Med. Physical Activity and the Association of Common FTO Gene Variants With Body Mass Index and Obesity.
- Jakicic JM et al. (2008). Arch Intern Med. Effect of Exercise on 24-Month Weight Loss Maintenance in Overweight Women.
- Slater J et al. (2009). Public Health Nutrition. The growing Canadian energy gap: more the can than the couch?
- Swinburn B et al. (2009). AJCN. Increased food energy supply is more than sufficient to explain the US epidemic of obesity.
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