This is normal in most cases, it is similar to postural hypertension in which the sudden act of standing can increase one's blood pressure and heart rate. If you are otherwise healthy, a heart rate in the upper 50s is a sign of a very efficient heart.
Your heart is slower than the average, probably due to fitness. You will have a larger stroke volume if this is the case, which is why it can beat slower. Basically it pumps a higher volume of blood with each beat than the average person. When you stand, you lose a lot of your blood into you legs, due to gravity, and you have to wait for the next beat to start getting blood back up to the brain. So in real basic terms, you stand up, feel a drop in blood pressure (postural hypotension) and then your heart builds the pressure back up which can take 2 seconds with a low pulse rate. This is common with athletes and getting up more slowly helps in most cases. If your lower heart rate is not due to fitness, then I would seek medical help. If for example you have recently started any medications such as beta blockers, this can be the cause.
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.