Figure 3: Comparison of the percentages of cytokines IFN-γ (A) and IL-4 (B) producing CD4 + T cells in the peripheral blood at the onset, 4 months and 6 months during the study period in control (CON) group and Tai Chi (TC) exercise group. Data are presented as Mean ± SEM. * p<0.05, ** p<0.01 as compared with onset of the same group.