Fig. 1

A comparison of the cardiac output measured by impedance cardiography during skating exercise and following 15–180 s of recovery in hockey players who passively sat on the bench (solid line) or performed light activity (dashed line) by standing and rocking on feet. (Inset) End-diastolic volumes (EDV) during the same period. Statistical significance was not met for EDV which had larger variance about the mean, but the similarity in the shape of these curves is notable. * p<0.05