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Exercise Improves Myocardial Deformation But Not Cardiac Structure in Preterm-Born Adults: A Randomized Clinical Trial

  • Winok Lapidaire
  • , Afifah Mohamed
  • , Wilby Williamson
  • , Odaro J. Huckstep
  • , Maryam Alsharqi
  • , Cheryl M.J. Tan
  • , Samuel Burden
  • , Cameron Dockerill
  • , William Woodward
  • , Annabelle McCourt
  • , Holger Burchert
  • , Yvonne Kenworthy
  • , Luca Biasiolli
  • , Helen Dawes
  • , Charlie Foster
  • , Paul Leeson
  • , Adam J. Lewandowski*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: People born preterm (<37 weeks' gestation) have a potentially adverse cardiac phenotype that progresses with blood pressure elevation. Objectives: The authors investigated whether preterm-born and term-born adults exhibit similar cardiac structural and functional remodeling following a 16-week aerobic exercise intervention. Methods: We conducted a randomized controlled trial in 203 adults (aged 18-35 years) with elevated blood pressure or stage 1 hypertension. Participants were randomized 1:1 to a 16-week aerobic exercise intervention or to a control group. In a prespecified cardiovascular magnetic resonance imaging (CMR) substudy, CMR was performed at 3.0-Tesla to assess left and right ventricular (LV and RV) structure and function before and after intervention. Results: A total of 100 participants completed CMR scans at baseline and after the 16-week intervention, with n = 47 in the exercise intervention group (n = 26 term-born; n = 21 preterm-born) and n = 53 controls (n = 32 term-born; n = 21 preterm-born). In term-born participants, LV mass to end-diastolic volume ratio decreased (−3.43; 95% CI: −6.29 to −0.56; interaction P = 0.027) and RV stroke volume index increased (5.53 mL/m2; 95% CI: 2.60, 8.47; interaction P = 0.076) for those in the exercise intervention group vs controls. No significant effects were observed for cardiac structural indices in preterm-born participants. In preterm-born participants, LV basal- and mid-ventricular circumferential strain increased (−1.33; 95% CI: −2.07 to −0.60; interaction P = 0.057 and −1.54; 95% CI: −2.46 to −0.63; interaction P = 0.046, respectively) and RV global longitudinal strain increased (1.99%; 95% CI: −3.12 to −0.87; interaction P = 0.053) in the exercise intervention group vs controls. No significant effects were observed for myocardial deformation parameters in term-born participants. Conclusions: Aerobic exercise training induces improved myocardial function but not cardiac structure in preterm-born adults.

Original languageEnglish
Article number101721
JournalJACC: Advances
Volume4
Issue number5
DOIs
StatePublished - May 2025
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • blood pressure
  • cardiac remodeling
  • cardiovascular disease
  • exercise intervention
  • hypertension
  • preterm birth

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