Fig. 3

Exercise-induced changes in NK cells. a Mean (+/- SEM) numbers (10⁹ cells/L) of CD56^dim and CD56^bright NK subsets Pre-walking and Post-walking in the study population (n = 20, left panels) and when stratified for CMV serostatus (CMV+; n = 13, CMV-; n = 7, right panels). b Percentages of KIR2DL1+, KIR2DL2/3+, KIR3DL1+, NKG2A+ and NKG2C+ NK cells within CD56^dim NK cells Pre-walking and Post-walking in CMV+ and CMV- subjects. c Percentages of NKp30+, NKp44, NKp46+,2B4+, NKG2D+ within CD56^dim NK cells Pre-walking and Post-walking in CMV+ and CMV- subjects. Statistical significance by Wilcoxon signed rank test is indicated as *p < 0.05, **p < 0.01