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Physical inactivity and obesity is not a myth: Dr Steven Blair comments on Dr Aseem Malhotra's editorial
  1. Steven N Blair
  1. Correspondence to Professor Steven N Blair, Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA; sblair{at}

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Malhotra et al 1 claim that ‘physical activity does not promote weight loss’. I respectfully disagree with many of the claims in the report.

  1. The authors claim that physical activity does not promote weight loss. Similar points were made in an article by Luke and Cooper published in 2013,2 and my colleagues and I published a commentary showing the weaknesses of their interpretation of the data.3 If you are interested in the details, please review that commentary. More detailed information on many of these points is presented in a position statement from the American College of Sports Medicine.4

  2. A second flawed point is the claim that over the past 30 years, there has been little change in physical activity, so the obesity epidemic must be due to increases in caloric intake. If one considers self-reported …

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  • Funding The University of Copenhagen, the University of Colorado, The Coca-Cola Company, the University of South Carolina, ShareWik Media Group.

  • Competing interests SNB is a co-founder and vice president of the Global Energy Balance Network (GEBN). GEBN has received support from private philanthropy, the University of Colorado, the University of South Carolina and the University of Copenhagen. In addition GEBN has received in-kind services from ShareWIK Media Group, and an unrestricted gift from The Coca-Cola Company. SNB serves on the scientific advisory boards of Clarity, Sports Surgery Clinic, Cancer Foundation for Life; and has received unrestricted research grants from the US National Institutes of Health, the US Department of Defense; BodyMedia; Technogym; and The Coca-Cola Company. He receives book royalties from Human Kinetics.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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