Nowadays, the standard basketball court dimensions are a rectangle 94 feet by 50 feet; however, high school basketball courts are a bit shorter, and the courts for junior high and youth leagues are even smaller.owadays, the standard basketball court dimensions are a rectangle 94 feet by 50 feet; however, high school basketball courts are a bit shorter, and the courts for junior high and youth leagues are even smaller.
Your heart's electrical system should maintain: 1  A steady heart rate of 60 to 100 beats per minute at rest. 2  The heart's electrical system also increases this rate to meet your body's needs during physical activity and lowers it during sleep.
Discuss the timing aspects of the cardiac cycle. Since the resting heart rate of a normal adult is about 75 beats/minute, each cycle takes about 0.8 sec. During the first 0.4 seconds, all four chambers are at rest (quiescent period)/. During the next 0.4 seconds, the atria, then the ventricles are in systole.