Abstract
Seven basketball athletes were studied to determine the effect of a season of competition on the heart. Pre- and postseason variables of resting and recovery heart rates plus the minutes of treadmill performance to produce a peak of 180 heart beats per minute were studied via an ECG telemetering transmitter. Variation of the resting heart rate between the preseason and postseason trials was not statistically significant; a significant reduction in the postseason treadmill performance task was obtained and a more rapid postseason recovery of the heart rate was observed.