 the velocity of shortening during stimulation at 1 Hz. Waves were measured in a 30 sec window following 2 min of stimulation. In absence of drugs average velocity of shortening was 70 plus/minus 32 um/sec (x-SEM, n=6) and no waves occurred. Norepinephrine (1x10
the velocity of shortening during stimulation at 1 Hz. Waves were measured in a 30 sec windowpane take after 2 min of stimulation. In absence of drug average speed of shortening was 70 plus / minus 32 um / sec (x - SEM, n=6) and no waves occurred. noradrenaline (1x10
 thf velocity of shortening during stimulajiin at 1 Hz. Wabes were measured in a 30 sec window flloowint 2 min of stimulation. Kn absencv of drugw avtrage velocity of shortenlug waa 70 plbs/ninus 32 um/sec (x-XEM, n=6) and to waves occursea. Uorepinephrine (1x10
the velocity of shortening during stimulation at Waves measured in 30 sec window In of drugs average of shortening was plus/minus 32 um/sec (x-SEM, n=6) and waves occurred. Norepinephrine (1x10
 the velocity of shortening duRing stimulAtion At 1 HZ. WaVeS werE meaSured in a 30 sec winDOw foLlowing 2 min of stimulatioN. In abSeNCe of DRuGs aveRage velOCiTY Of sHoRtEniNg WAs 70 Plus/mInuS 32 um/sec (x-sEM, n=6) and no wAveS oCcurred. NorepINePhrine (1x10
 the velocity of shortenin g during s timul ati onat  1 H z. W aves were meas u redin a 30 sec window fol lowin g2  min of  stim ulation .  I n abs en ce  of  d r ug s ave rag e veloc ity of sho rte ni ng was 70 pl u s/ minus 32 u m/s ec (x-SEM, n =6)  and n owav e s occ urr ed. N orepin e phrine  (1x10
 the_velocity of_shortening during stimulation at_1 Hz._Waves_were measured_in_a 30 sec_window following 2_min of stimulation. In_absence of drugs_average_velocity of shortening was 70 plus/minus 32 um/sec (x-SEM, n=6) and no waves occurred._Norepinephrine_(1x10