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.
for adults a normal resting rate is 60 to 100 beats per minute athletes may have a rate as low as 40 bpm because their hearts are trained to efficiently pump blood if your heart rate is consistently below 60 or above 100 you may have a heart condition such as arrhythmianowing yours can be an important heart health gauge your resting heart rate is the number of times your heart beats per minute while it s at rest the average resting heart rate is 60 to 100 beats per minute but it s usually lower for physically fit people and it rises with age