Effects of Remote Ischemic Conditioning on Blood Pressure in Older Patients With Hypertension

Remote ischemic conditioning (RIC) is induced by 4 cycles of 5 min of upper limb ischemia followed by 5 min reperfusion. Limb ischemia was induced by the inflation of an automated cuff to the pressure rising by 20 mmHg from baseline systolic pressure. RIC will be conducted twice daily for 7 days.

Sham-RIC is performed in the same way as the treatment group except that the blood pressure cuff is inflated to 60 mmHg, which produces mild pressure sensations but has no blocking impact on blood flow.