Effects of Exercise Training Response on Quality of Life and Cardiovascular Risk Factor Profiles in People With Coronary Artery Disease: Insights from the HIIT or MISS UK trial

Lee Ingle, Richard Powell, Brian Begg, Stefan T Birkett, Simon Nichols, Stuart Ennis, Pritwish Banerjee, Rob Shave, Gordon McGregor

Research output: Contribution to journalArticlepeer-review

Abstract

OBJECTIVE: To compare the characteristics of "responders" and "non-responders" to 8-weeks of exercise training to determine differences in key cardiovascular disease outcomes in people with coronary artery disease (CAD).

DESIGN: Secondary analysis of data from the HIIT or MISS UK trial.

SETTING: Six outpatient National Health Service cardiac rehabilitation centers in the UK. In people with CAD attending cardiac rehabilitation, the HIIT or MISS UK trial reported that short-term, low-volume, high intensity interval training (HIIT) was more effective than moderate intensity steady state (MISS) exercise training for improving peak oxygen uptake (VO 2peak).

PARTICIPANTS: 382 participants with CAD (mean age: 58.8 ± 9.6 years; mean BMI: 29.0 ± 4.3 kg∙m -2).

MAIN OUTCOME MEASURES: We identified "responders" and "non-responders" based on a meaningful change in peak oxygen uptake, using two established methods. Key clinical, quality of life, and cardiopulmonary exercise test (CPET)-derived outcomes were compared between groups.

RESULTS: Responders were more likely to be younger (P<0.05), and demonstrate greater improvement in CPET-related outcomes e.g. oxygen uptake efficiency slope (OUES), ventilatory efficiency (VE/VCO 2 slope), and peak power output (all comparisons, P<0.001). Responders were more likely to observe improvements in quality of life (EQ-5D-5L; mean Δ 13.6 v mean Δ 9.4; P=0.045), and HDL-cholesterol (mean Δ 0.09 mmol.L -1 v mean Δ 0.04 mmol.L -1; P=0.004), compared to non-responders.

CONCLUSIONS: In people with CAD attending cardiac rehabilitation, "responders" to exercise training were more likely to be younger, and demonstrate greater improvements in health-related QoL and HDL-cholesterol.

Original languageEnglish
Pages (from-to)(In-Press)
Number of pages26
JournalArchives of Physical Medicine and Rehabilitation
Volume(In-Press)
Early online date16 Mar 2024
DOIs
Publication statusE-pub ahead of print - 16 Mar 2024

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Keywords

  • Exercise dose
  • Exercise prescription
  • HIIT
  • Heart disease
  • Intensity
  • Training volume

ASJC Scopus subject areas

  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation

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