Song Yi Shin, M.S.Cardiovascular disease (CVD) remains the primary causes of deaths in the United States.Despite a number of research to prevent or cure CVD, it is still the leading cause of morbidity and mortality worldwide. Numerous studies have found that exercise is very effective for prevention of CVD, however, there are many CVD patients who are not able to exercise at high intensity and certain duration required due to their pathological conditions or physical limits. Fortu...