Aa
A
A
Close
266195 tn?1215314011
respiratory sinus arrhythmia? Heart rate variability. Help me figure this out.
I have not seen much literature about this. respiratory sinus arrhythmia,  Is this a common thing in humans?  I know for a fact when I'm at rest my heart rate changes with how I breath, sometimes.  When I breath in it goes fast and when I breath out it slows down. It sort of feels like this when im taking my pulse.    Beat-------Beat-------Beat---Beat---Beat---Beat-------Beat-------Beat-------Beat---Beat---Beat---Beat---Beat

First time I noticed it it scared me so I had a 24 hour Holter Monitor done, it did that during the test and I marked it as abnormal on the machine I was wearing and the Cardiologist said everything was fine. So I'm not overly concerned about this I just wonder if anyone else has noticed this as well?  And is this actually normal for a human heart to do this?
Cancel
10 Answers
Page 1 of 1
Avatar universal
Yeah, it's just what the heart does. I'm not exactly sure how it works, but I know that it does it to get the most out of your breath. You'll probably find it does it more when you're paying attention to it, too. It happens to everyone, as far as I'm aware.
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Avatar universal
It is considered a normal variation.  I think it is more common in children and younger people, but is completely benign.
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Avatar universal
It's normal and a good thing.

Respiratory sinus arryhtmia is, as you noted, a speeding up of the heart rate when inhaling and a slowing down when you exhale.  It is a measure a well functionign autonomic nervous system.

When you inhale you develop negative pressure (lower pressure than normal) in your abdominal cavity.  This is sensed and you heart speed up in repose to it.  When you exhale, pressures rise back to rest and your heart slows.  Your nervous system is set to do this so that the heart speeds up in response to low blood pressure to maintain cardiac output.

It's a good thing.

Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
266195 tn?1215314011
it doesent do it all the time, i mainly notice it more at night but sometimes i can notice it during the day as well, is that ok?
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
266195 tn?1215314011
by the way, just incase it matters i'm a 22 y/o male, so i guess i'm considered a young adult.... so this should be normal for me?  sometimes i'll be at rest though and ill take my pulse and it will be rock solid, very steady no matter how i breath....
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Avatar universal
It's NORMAL.  Relax and stop taking your pulse!
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Avatar universal
Respiratory sinus arrhythmia is not just normal. It is a sign of good health. It means that your cardio-respiratory system is able to efficiently adapt to sudden changes in blood pressure and maintain adequate blood supply to critical parts of the body like brain.


Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Avatar universal
There is a way to learn how to increase RSA and thus improve health. This can be done with HRV biofeedback. There are tools available for this, e.g. Heart Tracker.
Comment
Cancel
Comment
Avatar universal
Comment
Comment
Submit Comment
Your Answer
Avatar universal
Answer
Know how to answer? Tap here to leave your answer...
Answer
Submit Answer
A
A
Top Arrhythmias Answerers
Recent Activity
Avatar universal
Blank
dayna852 commented on Make A Shake That Wil...
1 hr ago
1236893 tn?1408490528
Blank
Avatar universal
Blank
Kadam96 joined this community
Welcome them!
Aug 28
Heart Rhythm Community Resources
RSS Expert Activity
233488 tn?1310696703
Blank
Marathon Running Done Over Many Yea...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
233488 tn?1310696703
Blank
New Article on Multifocal IOL vs &q...
05/15 by John C Hagan III, MD, FACS, FAAOBlank
748543 tn?1463449675
Blank
TMJ/TMJ The Connection Between Teet...
01/15 by Hamidreza Nassery , DMD, FICOI, FAGD, FICCMOBlank
Top Arrhythmias Answerers