# An innovative cardiac rehabilitation based on the power–force–velocity profile to further improve cardiorespiratory capacities in coronary artery disease patients: CITIUS study

## TL;DR

A new cardiac rehabilitation program based on individual power-force-velocity profiles improves cardiorespiratory fitness and cholesterol more than traditional methods in heart disease patients.

## Contribution

A novel cardiac rehabilitation approach using power–force–velocity profiling for personalized training in coronary artery disease patients.

## Key findings

- The experimental group showed significantly greater improvements in VO2 peak and VO2 at VT1 compared to the control group.
- The experimental group had significant improvements in LDL cholesterol levels compared to the control group.

## Abstract

Individually optimizing the training programme of cardiac rehabilitation (CR) remains a major concern among coronary artery disease (CAD) patients. The power–force–velocity profile (PFVP) for a given task is usually assessed to improve performance in athletes through individualized training. Therefore, assessing PFVP on stationary cycle ergometer may allow better personalization of CR programme. The aim of this study was to compare the effects of a new CR customized based on patient’s PFVP vs. a traditional CR in CAD patients on cardiorespiratory, biological, and muscular systems.

A total of 86 patients participated in this study. The 3-week intervention consisted of physical training sessions (4/week) and therapeutic education workshops (1/week). Experimental group patients followed a specific cycle ergometer training programme focusing on their less developed PFVP quality. Control patients attended a conventional CR programme. Cardiopulmonary exercise test (VO2 at the first ventilatory threshold, VT1, and the peak), blood tests [LDL and HDL cholesterol (LDL-C and HDL-C)], and handgrip and quadriceps force were assessed at baseline and after CR. The mean age was 60.8 ± 9.6 years, and 15% were women. A significantly greater benefit in VO2  peak (experimental: +21.5 ± 19.2% vs. control: +10.5 ± 15.8%, P < 0.001), VO2 at VT1 (experimental: +35.5 ± 33.6% vs. control: +8.4 ± 31.2%, P < 0.001), and LDL-C (P = 0.001) were observed in the experimental group. Both groups significantly increased HDL-C and muscle parameters.

The novel CR, based on initial individual PFVP performed on stationary cycle ergometer, showed greater benefits on cardiorespiratory capacities and lipid profile than a conventional, non-individualized CR. Therefore, PFVP could be used in CR to adapt specifically the content of training sessions.

Graphical Abstract