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Self-reported physical activity is associated with cardio-pulmonary exercise testing parameters in a large population-based cohort from Northeast Germany

Session Poster Session III - Friday 08:30 - 12:30

Speaker Martin Bahls

Event : ESC Preventive Cardiology (Formerly EuroPrevent) 2015

  • Topic : preventive cardiology
  • Sub-topic : Lipids
  • Session type : Poster Session

Authors : M Bahls (Greifswald,DE), R King (Greifswald,DE), S Gross (Greifswald,DE), T Ittermann (Greifswald,DE), M Doerr (Greifswald,DE)

M Bahls1 , R King1 , S Gross1 , T Ittermann2 , M Doerr1 , 1University Medicine of Greifswald, Internal Medicine B - Greifswald - Germany , 2University of Greifswald, Institute for Community Medicine - Greifswald - Germany ,

On behalf: DZHK (Deutsches Zentrum f Herz-Kreislauf-Forschung e.V.)


Introduction: Increasing physical activity (PA) in the general population is an important tool for the prevention of cardiovascular diseases. Increased PA is believed to improve cardiopulmonary exercise capacity. Cardiopulmonary exercise testing (CPET) is the gold standard for assessing physical fitness. For large population-based cohorts CPET applicability is limited because of its expensive and time consuming nature. Thus, questionnaires are often used to measure PA behavior. Unfortunately, very few of these questionnaires have been validated against physiological parameters of CPET. We measured PA behavior with a questionnaire in a large population-based cohort from Northeast Germany and related the results with maximal oxygen consumption (VO2peak) and oxygen consumption at the anaerobic threshold (VO2@AT). Methods: Cross-sectional data of 1,708 subjects (49% male; age: 25 – 85 years) from the follow-up of the Study of Health in Pomerania (SHIP-1) were used for analysis. PA behavior was assessed using an adapted Baecke questionnaire. VO2peak and VO2@AT were measured during standardized CPET on a cycle ergometer using a modified Jones protocol. All adjusted models were corrected for sex, age, body mass index and smoking status. An adjusted linear regression was fitted to scores related to voluntary [sports score (SS), sports index (SI), and leisure time index (LTI)] as well as involuntary PA scores [work index (WI)]. Results: SS [ß: 138.24 (95%-CI: 117.08; 159.39) ml/min], SI [ß: 197.99 (95%-CI: 171.76; 224.22) ml/min] and LTI [ß: 129.00 (95%-CI: 99.12; 159.88) ml/min] were significantly positively associated with VO2peak and VO2@AT [SS: ß 2.04 (95%-CI: 1.76; 2.32) ml/min/kg; SI: ß: 2.97 (95%-CI: 2.62; 3.31) ml/min/kg; LTI: ß: 1.99 (95%-CI: 1.60; 2.39) ml/min/kg]. A significantly inverse relationship was found between WI and VO2peak [ß: -44.46 (95%-CI: -79.15; -9.76) ml/min] as well as VO2@AT [ß: -0.51 (95%-CI: -0.97; -0.05) ml/min/kg].Conclusion: Scores from the adapted Baecke questionnaire were strongly related with VO2peak as well as VO2@AT. Therefore, this questionnaire may be used in large population-based cohorts to assess PA behavior as a marker for cardiopulmonary exercise capacity. Interestingly, Baecke scores based on leisure time and voluntary PA had a positive relationship, while items asking about PA at work had an inverse association with cardiorespiratory fitness. Consequently, increasing voluntary PA is the key to prevent future cardiovascular diseases.

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