umu.sePublications
Change search
ReferencesLink to record
Permanent link

Direct link
Atrial chamber remodelling in healthy pre-adolescent athletes engaged in endurance sports: A study with a longitudinal design. The CHILD study.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Cardiology.
Show others and affiliations
2016 (English)In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 223, 325-330 p.Article in journal (Refereed) Published
Abstract [en]

AIMS: Previous studies investigated the exercise-induced adaptation of left (LA) and right atrium (RA) in adults, but little is known about respective changes in the growing heart of children. We aimed to longitudinally investigate the effects of endurance training on biatrial remodelling in preadolescent athletes.

METHODS AND RESULTS: Ninety-four children (57 endurance athletes, 37 sedentary controls; mean age 10.8±0.2 and 10.2±0.2years, respectively) were evaluated at baseline and after 5months by ECG and by two-dimensional, three-dimensional (3D) and speckle-tracking echocardiography. Athletes were trained at least 10h/week. The resting heart rate was lower in athletes (p=0.046) and decreased further after training (p<0.0001). Neither athletes nor controls had ECG evidence for LA or RA enlargement. At baseline, indexed LA volumes did not differ between groups (p=0.14) but indexed RA dimensions were larger in athletes (p=0.007). After 5months, indexed LA volumes increased in athletes but not in controls (p<0.0001, p=0.29; respectively) while indexed RA volumes increased in both groups (p<0.0001, p=0.018; respectively). At the same time, slight differences in biatrial reservoir and contractile function were found either in athletes, as demonstrated by speckle-tracking echocardiography, but 3D-derived LA and RA ejection fraction remained stable in both groups.

CONCLUSION: Endurance training influences the growing heart of preadolescent athletes with an additive increase in biatrial size, suggesting that morphological adaptations can occur also in the early phases of the sports career. Training-induced remodelling was associated with a preserved biatrial function, supporting the hypothesis of a physiological remodelling.

Place, publisher, year, edition, pages
2016. Vol. 223, 325-330 p.
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:umu:diva-127537DOI: 10.1016/j.ijcard.2016.08.231PubMedID: 27543703OAI: oai:DiVA.org:umu-127537DiVA: diva2:1046791
Available from: 2016-11-15 Created: 2016-11-15 Last updated: 2016-11-15

Open Access in DiVA

No full text

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
D'Ascenzi, FlavioHenein, Michael
By organisation
Cardiology
In the same journal
International Journal of Cardiology
Clinical Medicine

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 6 hits
ReferencesLink to record
Permanent link

Direct link