Figure 3. Change in leg blood flow and plasma ATP levels during passive exercise, rhythmic thigh compressions and dynamic exercise.

The change in leg blood flow and arterial and venous ATP concentrations with passive movement, rhythmic thigh compressions and exercise are depicted from baseline conditions. The ATP concentrations were obtained by use of microdialysis placed in the femoral artery and vein. Data are means ± SEM for 6 subjects. *Different from baseline conditions, P < 0.05. Figure modified from Mortensen et al. (2011).