Training intensity and improvements in exercise capacity in elderly patients undergoing European cardiac rehabilitation - the EU-CaRE multicenter cohort study

Thimo Marcin*, Prisca Eser, Eva Prescott, Leonie F. Prins, Evelien Kolkman, Wendy Bruins, Astrid E. van der Velde, Carlos Pena Gil, Marie-Christine Iliou, Diego Ardissino, Uwe Zeymer, Esther P. Meindersma, Arnoud W. J. Van't Hof, Ed P. de Kluiver, Matthias Wilhelm

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Objectives

Guidelines for exercise intensity prescription in Cardiac Rehabilitation (CR) are inconsistent and have recently been discussed controversially. We aimed (1) to compare training intensities between European CR centres and (2) to assess associations between training intensity and improvement in peak oxygen consumption (VO2) in elderly CR patients.

Methods

Peak VO2, heart rate and work rate (WR) at the first and second ventilatory thresholds were measured at start of CR. Training heart rate was measured during three sessions spread over the CR. Multivariate models were used to compare training characteristics between centres and to assess the effect of training intensity on change in peak VO2.

Results

Training intensity was measured in 1011 out of 1633 EU-CaRE patients in 7 of 8 centers and the first and secondary ventilatory threshold were identified in 1166 and 817 patients, respectively. The first and second ventilatory threshold were found at 44% (SD 16%) and 78% (SD 9%) of peak WR and 78% (SD 9%) and 89% (SD 5%) of peak heart rate, respectively. Training intensity and session duration varied significantly between centres but change in peak VO2 over CR did not. Training above the first individual threshold (beta 0.62, 95% confidence interval [0.25-1.02]) and increase in training volume per hour (beta 0.06, 95%CI [0.01-0.12]) were associated with a higher change in peak VO2.

Conclusion

While training intensity and volume varied greatly amongst current European CR programs, changes in peak VO2 were similar and the effect of training characteristics on these changes were small.

Original languageEnglish
Article number0242503
Number of pages12
JournalPLOS ONE
Volume15
Issue number11
DOIs
Publication statusPublished - 13 Nov 2020

Keywords

  • CORONARY-ARTERY-DISEASE
  • CARDIOVASCULAR PREVENTION
  • ASSOCIATION

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