Figure 1.

Study design description. The figure shows the design for a participant who started with the exercise period (when read from left to right). The subjects were randomized to whether they started with exercise or with the period of little physical activity. During the exercise period participants were randomized to consume blueberries on exercise days, or to be asked not to make any changes in regular eating habits. Blood sampling was performed in the fasting state in the morning; running-races at maximal speed were performed in the evening at 6 p.m.