With the acceleration of the aging process, there are more and more elderly patients with chronic heart failure. Chronic heart failure has severely affected the heart function and quality of life of the elderly. This article aims to study the further improvement of the heart function and the quality of life of elderly patients with chronic heart failure through exercise rehabilitation. In this paper, experimental analysis and comparative analysis are adopted, the experimental group and the control group are designed, the adaptive heart rate and breathing rate algorithm is adopted, the heart failure symptom assessment scale and the quality of life assessment tool are selected, and the two groups of different rehabilitation forms are compared. Data collection, sorting, and analysis of the patient's conditions are utilized. Through the use of exercise rehabilitation, the heart failure process will be slower and the recovery of heart strength will be faster than the control group. Before the experiment, the probability of shortness of breath in the two groups of patients with chronic heart failure symptoms was as high as 84.08%, and the symptom clusters were more serious; after the experiment, the SV and EF values after exercise rehabilitation were higher than those of the control group (p < 0.05). The quality of life in the realm, emotional realm, and other realms has been significantly improved. For elderly patients with chronic heart failure, reasonable exercise rehabilitation training can provide them with effective preventive measures and protective measures, improve the patients' heart function and quality of life, and play an important and key role.
