Isthmic spondylolisthesis is caused by a defect in a part of the vertebra called the pars interarticularis. This defect can cause the vertebra to slip forward.
What's a normal heart rate? Most adults have a resting heart rate of 60-100 beats per minute (bpm). The fitter you are, the lower your resting heart rate is likely to be. For example, athletes may have a resting heart rate of 40-60 bpm or lower. You should contact your GP if you think your heart rate is continuously above 120 bpm or below 40 bpm, although this could just be normal for you.
Normal Heart Rate Ranges. The normal heart rate for adults generally ranges from 60 to 100 beats per minute. This means your heart normally beats one to two times per second.Calculate your resting heart rate by placing your index and middle fingers on your neck to the side of your windpipe.ormal Heart Rate Ranges. The normal heart rate for adults generally ranges from 60 to 100 beats per minute. This means your heart normally beats one to two times per second.