Abstract:

Objective To investigate the effect of individual exercise training on the rehabilitation of patients with coronary heart disease （CHD） after percutaneous coronary intervention （PCI）. Methods A total of 81 patients between January 2021 and December 2023 were randomly allocated into an observation group （n = 41） and a control group （n = 40） using a simple random number Tab.method. The control group received routine postoperative rehabilitation intervention， while the observation group received individualized exercise training as the core component of cardiac rehabilitation intervention. The study compared the effects of rehabilitation， cardiac function parameters ［left ventricular ejection fraction （LVEF）， left ventricular end-diastolic diameter （LVEDD）］， exercise endurance measures ［6-minute walking distance （6MWD）］， and quality of life assessed by Seattle Angina Pecina Scale （SAQ） scores between the two groups before and after a three-month intervention period. Results The total recovery response rate in the observation group was higher than that in the control group （P < 0.05）. LVEF， LVEDD， 6 MWD， maximum exercise load and SAQ scales （P > 0.05）， LVEF were higher than before intervention （t = 3.345，2.480，3.165，5.016，2.059，4.582，4.443，3.353， P < 0.05）， and LVEDD was lower than before intervention （t = 3.335， P < 0.05）. Conclusion The individualized exercise training-based cardiac rehabilitation program demonstrates potential for enhancing cardiac function and exercise endurance in patients with CHD following PCI， thereby improving their overall quality of life. This finding holds significant clinical implications.

Key words: individualized exercise training, cardiac rehabilitation programme, coronary heart disease, percutaneous coronary intervention, rehabilitation effect