The Effects of Tai Chi on Grade 1 Hypertension: A Study Protocol for a Randomized Controlled Trial

Abstract Background Medication is generally recommended to reduce the morbidity and mortality caused by cardiovascular disease in hypertensive patients. However, considering the difficulties and economic factors associated with long-term medication, interest in tai chi as an exercise treatment method has been recently increasing in Korean medical practice. Numerous studies have suggested that tai chi can be used to treat various diseases and affect psychosomatic factors such as anxiety. This study aims to evaluate the effect of tai chi in reducing blood pressure among grade 1 hypertensive patients.Methods In this randomized, active-controlled, assessor-blinded, two parallel-armed trial, 80 grade 1 hypertension patients will be recruited and randomly assigned to the usual care group or to the tai chi group (n = 40 in each group). Subjects who voluntarily signed a study agreement will be educated to manage their own blood pressure by restricting salt intake, losing weight, moderating alcohol consumption, performing exercise, and regulating dietary intake at their first visit. In addition to self-management, the tai chi group will perform two 60-minute tai chi sessions per week for a total of 8 weeks. Blood pressure will be measured as the primary outcome. In addition, body composition, heart rate, and the perceived strength and difficulty of the exercise will be measured as secondary outcomes.Discussion This study intends to conduct a randomized controlled trial of tai chi, which is not widely practiced in Korea. This study will provide valuable data on the effects of tai chi on hypertension, to inform non-pharmaceutical treatment options for this disorder.