Inflatable leg cuffs tested as a Two-for-One therapy for high blood pressure and erectile dysfunction

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male participants aged 60 to 75 years with a stable sexual partner. * Diagnosis of hypertension, defined as one of the following: office blood pressure ≥140/90 mmHg measured on three separate days without antihypertensive treatment; mean home blood pressure ≥135/85 mmHg measured over 5 to 7 consecutive days; or 24-hour ambulatory blood pressure ≥130/80 mmHg, daytime blood pressure ≥135/85 mmHg, or nighttime blood pressure ≥120/70 mmHg. Participants with a previous diagnosis of hypertension who are currently receiving antihypertensive treatment remain eligible even if their current blood pressure is below these thresholds. * Diagnosis of erectile dysfunction, defined as a 5-item International Index of Erectile Function (IIEF-5) score ≤21 with a duration of at least 3 months. * Stable lifestyle, a stable female sexual partner, and willingness to attempt sexual intercourse with that partner during the study. * No treatment with phosphodiesterase type 5 inhibitors, hormones, health supplements, or other treatments intended to improve erectile function, including traditional Chinese medicines, within 3 months before enrollment. * Voluntary participation and ability to read, understand, and provide written informed consent. Exclusion Criteria: * Severe cardiac disease, including New York Heart Association class IV heart failure, left ventricular ejection fraction \<30%, malignant arrhythmia, or other clinically significant cardiac conditions. * Uncontrolled hypertension (\>180/110 mmHg) or secondary hypertension. * Diabetes mellitus. * Current use of other medications that may significantly affect blood pressure, such as glucocorticoids. * A condition associated with an increased risk of priapism, such as sickle cell anemia or leukemia. * Peptic ulcer disease, a bleeding disorder, visual abnormality, or hearing impairment. * Malignant tumor or another severe primary disease involving the heart, liver, kidneys, hematopoietic system, or another major organ or system. * Neurological or psychiatric disease that prevents cooperation with study procedures, or unwillingness to cooperate. * History of alcohol or drug abuse. * Participation in another clinical trial within the previous 3 months. * A contraindication to enhanced external counterpulsation, including severe aortic regurgitation, aortic aneurysm, active thrombophlebitis, or lower-extremity deep vein thrombosis. * A clinically significant penile anatomical or structural abnormality as determined by the investigator, including micropenis, penile curvature, or fibrosis of the corpora cavernosa.