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Journal of Cardiopulmonary Rehabilitation & Prevention

April 2013, Volume 33 Number 2 , p 132 - 134


  • Jeffrey L. Roitman EdD
  • Sanjay Kalra MD


Kaminsky LA, Arena R, Beckie TM, et alCirculation. 2013;127:652-662. doi:10.1161/CIR.0b013e31827ee100Editor's Comment: This article is a "Policy Statement" from the American Heart Association about the importance of cardiorespiratory fitness (CRF), physical activity (PA), and physical fitness (PF), which includes muscular fitness by writing team definition. The authors discuss the association of these factors (separately and combined) with chronic disease. Additionally, the writing team proposes a national registry for CRF data. The article includes excellent discussions about the importance of CRF, the assessment and association of PA and PF, and a detailed proposal for the CRF registry. This article is well worth reading, especially for the information about CRF, PA and PF, and their relationships to chronic disease. -JRCasazza K, Fontaine KR, Astrup A, Birch LL, Brown AWN Engl J Med. 2013;368:446-54. doi:10.1056/NEJMsa1208051Background: Many beliefs about obesity persist in the absence of supporting scientific evidence (presumptions); some persist despite contradicting evidence (myths). The promulgation of unsupported beliefs may yield poorly informed policy decisions, inaccurate clinical and public health recommendations, and an unproductive allocation of research resources and may divert attention away from useful, evidence-based information.Methods: Using Internet searches of popular media and scientific literature, we identified, reviewed, and classified obesity-related myths and presumptions. We also examined facts that are well supported by evidence, with an emphasis on those that have practical implications for public health, policy, or clinical recommendations.Results: We identified seven obesity-related myths concerning the effects of small sustained increases in energy intake or expenditure, establishment of realistic goals for weight loss, rapid weight loss, weight-loss readiness, physical-education classes, breast-feeding, and energy expended during sexual

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