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Chronotropic incompetence is more frequent in obese adolescents and relates to systemic inflammation and exercise intolerance

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Journal of Sport and Health Science 2023年第2期12卷 194-201页

作者： Wouter M.A.Franssen Charly Keytsman Nastasia Marinus Kenneth Verboven Bert O.Eijnde lisa van ryckeghem Paul Dendale Renate Zeevaert Guy Massa Dominique Hansen Rehabilitation Research Centre(REVAL) Faculty of Rehabilitation SciencesHasselt UniversityHasselt 3500Belgium Biomedical Research Institute(BIOMED) Faculty of Medicine and Life SciencesHasselt UniversityHasselt 3500Belgium ADLON Sports Medical Center Hasselt 3500Belgium Heart Centre Hasselt Jessa HospitalHasselt 3500Belgium Department of Pediatric Endocrinology and Diabetology Jessa HospitalHasselt 3500Belgium

Background:Adults with obesity may display disturbed cardiac chronotropic responses during cardiopulmonary exercise testing,which relates to poor cardiometabolic health and an increased risk for adverse cardiovascular *** is unknown whether cardiac chronotropic incompetence(CI)during maximal exercise is already present in obese adolescents and,if so,how that relates to cardiometabolic ***:Sixty-nine obese adolescents(body mass index standard deviation score=2.23±0.32,age=14.1±1.2 years;mean±SD)and 29lean adolescents(body mass index standard deviation score=-0.16±0.84,age=14.0±1.5 years)performed a maximal cardiopulmonary exercise testing from which indicators for peak performance were *** resting heart rate and peak heart rate were used to calculate the maximal chronotropic response ***(lipid profile,glycemic control,inflammation,and leptin)was studied in fasted blood samples and during an oral glucose tolerance test within obese *** analyses were applied to examine associations between the presence of CI and blood or exercise capacity parameters,respectively,within obese ***:CI was prevalent in 32 out of 69 obese adolescents(46%)and 3 out of 29 lean adolescents(10%).C-reactive protein was significantly higher in obese adolescents with CI compared to obese adolescents without CI(p=0.012).Furthermore,peak oxygen uptake and peak cycling power output were significantly reduced(p<0.05)in obese adolescents with CI *** adolescents without *** chronotropic index was independently related to blood total cholesterol(standardized coefficientβ=-0.332;p=0.012)and C-reactive protein concentration(standardized coefficientβ=-0.269;p=0.039).Conclusion:CI is more common in the current cohort of obese adolescents,and is related to systemic inflammation and exercise intolerance.

关键词： Adolescents Cardiometabolic health Exercise tolerance Heart rate Obesity

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