significant correlations were found between the percentage of body fat and the variation in the r-r interval after beta-adrenergic blockade ( r = -0.30 , p less than 0.03 ) , the heart rate ( r = 0.30 , p less than 0.03 ) , the plasma norepinephrine concentration ( r = -0.30 , p less than 0.05 ) , the plasma epinephrine concentration ( r = -0.49 , p less than 0.001 ) , and the pupillary latency period ( r = 0.39 , p less than 0.01 ) .
C0028351
norepinephrine
C0014563
epinephrine