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Left ventricular diastolic function is enhanced after peak exercise in endurance-trained adolescents as well as in their non-trained controls
Jonkoping Univ, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Cardiovascular Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Clinical Physiology in Linköping. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Jonkoping Univ, Sweden; Reg Jonkoping Cty, Sweden.
Jonkoping Univ, Sweden; Reg Jonkoping Cty, Sweden.
2018 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 38, no 6, p. 1054-1061Article in journal (Refereed) Published
Abstract [en]

The aims of the study were to explore the temporal change of cardiac function after peak exercise in adolescents, and to investigate how these functional changes relate to maximal oxygen uptake (VO2max). The cohort consisted of 27 endurance-trained adolescents aged 13-19years, and 27 controls individually matched by age and gender. Standard echocardiography and colour tissue Doppler were performed at rest, and immediately after as well as 15min after a maximal cardio pulmonary exercise test (CPET) on a treadmill. The changes in systolic and diastolic parameters after exercise compared to baseline were similar in both groups. The septal E/e-ratio increased immediately after exercise in both the active and the control groups (from 9amp;lt;boldamp;gt;amp;lt;/boldamp;gt;2 to 11amp;lt;boldamp;gt;amp;lt;/boldamp;gt;0; Pamp;lt;0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;001, and from 8amp;lt;boldamp;gt;amp;lt;/boldamp;gt;7 to 10amp;lt;boldamp;gt;amp;lt;/boldamp;gt;2; P=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;008, respectively). In a comparison between the two groups after CPET, the septal E/e-ratio was higher in the active group both immediately after exercise and 15min later compared to the control group (P=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;007 and P=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;006, respectively). We demonstrated a positive correlation between VO2max and cardiac function including LVEF and E/e immediately after CPET, but the strongest correlation was found between VO2max and LVEDV (r=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;67, Pamp;lt;0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;001) as well as septal E/e (r=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;34, P=0amp;lt;boldamp;gt;amp;lt;/boldamp;gt;013). Enhanced diastolic function was found in both groups, but this was more pronounced in active adolescents. The cardiac functional response to exercise, in terms of LVEF and E/e, correlates with the increase in VO2 uptake. These findings in trained as well as un-trained teenagers have practical implications when assessing cardiac function.

Place, publisher, year, edition, pages
WILEY , 2018. Vol. 38, no 6, p. 1054-1061
Keywords [en]
diastolic function; E; e; echocardiography; heart; systolic function; training; youngster
National Category
Sport and Fitness Sciences
Identifiers
URN: urn:nbn:se:liu:diva-152047DOI: 10.1111/cpf.12534ISI: 000446073500019PubMedID: 29947056OAI: oai:DiVA.org:liu-152047DiVA, id: diva2:1259454
Note

Funding Agencies|Medical Research Council of Southeast Sweden (FORSS) [651971]

Available from: 2018-10-29 Created: 2018-10-29 Last updated: 2018-10-29

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Engvall, Jan
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Division of Cardiovascular MedicineFaculty of Medicine and Health SciencesDepartment of Clinical Physiology in LinköpingCenter for Medical Image Science and Visualization (CMIV)
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