Acute Effects of Continuous or High Intensity Interval Exercise on Plasma Levels of E-Selectin and WBC Indices in CHD Patients

The aim of this study was to investigate the acute effects of continuous or high intensity interval exercise on plasma E-Selectin and WBC indices in CHD patients. Therefore, 30 male heart patients with Coronary Artery Bypass (CABG) and stenting (PCI) history voluntarily participated and divided into three groups: control, continuous and high-intensity interval (HIIT) group. Patients of HIIT group performed 8 repetitions of a 4-min interval training (2:2 min exercise: recovery, intensity: 90:30 %VO2peak), but continuous group performed a 30-min continuous exercise with a constant intensity at 60 %VO2peak. Blood samples were taken before and after exercise and their E-selectin and WBC indices were analyzed. The one-way ANOVA and Pearson correlation were used for statistical analysis. The results showed significant differences between the three groups for E-selectin increase (F2, 27=27.8, P0.05). It can be concluded that a session of exercise may stimulate the inflammation related processes that may be exacerbate in CABG and PCI patients by HIIT. Thus, using this type of exercise for just one session is not recommended in heart patients.