IJCS | Volume 32, Nº5, September/October 2019

479 Meira et al. Talk the talk and walk the walk! Int J Cardiovasc Sci. 2019;32(5):473-480 Original Article that are out of this academic environment. Although heart rate measurements were performed at the end of the interview sessions, they were not taken after a ten- minute resting period, as in previous studies. This may have resulted in higher heart rates, and underestimation of aerobic conditioning of participants. Nevertheless, all measurements were performed very carefully in attempt to obtain the lowest heart rate values. Also, one cannot assure that the fact of being aware of the WHO recommendations on physical exercise actually leads to effective counseling of patients in this sense by the doctors. It is worth mentioning that our volunteers were not asked about when or howoften they receivedmedical advice on physical activity. The fact that both body weight and height were self-reported was another limitation of our study. A previous study involving 11,284 adults aged between 20 and 74 years from the second National Health and Nutrition Examination Survey of 1976-1980 evaluated errors in self-reported weight and height. The authors found that, although both were reported, on the average, with small errors, self-reported weight and height were not reliable in important population subgroups. Errors in self-reports were directly related to an overweight status – tendency and lack of reliability in self-report is directly proportional to the magnitude of overweight. Errors in self- reported weight were greater in overweight women than in overweight men. Race, age, and end-digit preference were auxiliary predictors of error in weight reporting. Errors in self-reporting height were related to a person’s age--bias and lack of reliability in self- reporting increased directly with age after the age of 45 years. Overweight status was also a predictor of reporting error in height. 29 A physically active medical community could not only give due consideration to the problem of physical inactivity, but also gain credibility by using a powerful argument during consultations: “Do what I say, do what I do!” In order to form physically active physicians, the first step could be to analyze how the topic “physical activity” has been addressed in the universities, which should take care of their students, by providing them with adequate infrastructure and logistics for the development of university sports programs. In addition, Medical Councils could assume a role in motivating physicians to be physically active throughout their professional careers. Conclusion In this study, the knowledge about the WHO recommendations onweekly exercise was greater among more physically active physicians. Cardiologists were slightlymore likely toknowabout these recommendations than non-cardiologists, and being a physically active cardiologist was an independent predictor of knowledge. This study was funded by the Human Performance Laboratory of the Casa de Saúde São José . Acknowledgements We thank the former President (2016-2017) of Rio de Janeiro Society of Cardiology, Prof. Dr. RicardoMourilhe Rocha, for his unconditional support for this study. Author contributions Conception and design of the research: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Acquisition of data: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Analysis and interpretation of the data: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Statistical analysis: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Obtaining financing: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, VolschanA, Silva FB. Writing of themanuscript: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Critical revision of the manuscript for intellectual content: Meira DT, Gonçalves LG, Araújo LH, Gasparini M, Cunha BS, Monteiro A, Heringer M, Prado C, Volschan A, Silva FB. Potential Conflict of Interest No potential conflict of interest relevant to this article was reported. Sources of Funding This studywas funded by Laboratório de Performance Humana (LPH)