Figure 4From: A 12-week after-school physical activity programme improves endothelial cell function in overweight and obese children: a randomised controlled study Mean (± SEM) (a) percentage of CD133 + cells and (b) percentage of CD34 + / CD133 + cells measured at baseline and 12 weeks in the control group (n = 14) and exercise group (n = 15). Back to article page