Skip to main content

Questions tagged [heart-rate]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
4 votes
0 answers
102 views

Heart Rate Variability and Morbidity/Mortality [closed]

My Apple watch measures my Heart Rate Variability every 4 hours automatically and each time reports the HRV in milliseconds. They define HRV as 1 standard deviation of the all the R-R intervals during ...
BobE's user avatar
  • 720
0 votes
1 answer
36 views

How to determine the "argument" of the electrical axis of the ECG from aVF & VI

This question is a continuation of the following question; Is the definition of aVF consistent with Novosel’s formula? Unfortunately, the article at the following URL is written in Japanese, but its ...
Blue Various's user avatar
1 vote
0 answers
28 views

Is there a standard calculation for "degree of irregularity" of heartbeat? [closed]

I'm considering making an online tool to help calculate the degree of irregularity of heartbeat. I'd like to use a standard measurement and formula if such a thing exists. For example a user taps a ...
pixelearth's user avatar
1 vote
0 answers
61 views

Accesible way to measure metabolism

I'm aware that metabolism can be measured in multiple ways, using both direct and indirect calorimetry. It can also be approximated using a combination of bodyweight and other measures, like with the ...
gabriel's user avatar
  • 11
1 vote
0 answers
128 views

EKG reading question [closed]

Can someone tell me what "ETRSR1-RSR' in V1 or V2, right VCD or RVH-QRS area positive & R' V1/V2 " means? In other comments it also said "otherwise normal EKG"
Ashely Cox's user avatar
1 vote
0 answers
34 views

Quickly reduced resting pulse after few cardio sessions [closed]

Preample: this is a academic question about the link between aerobic activity and the neurotransmitters controlling the heart rate. I am using my own observations as the starting point but not asking ...
user2523167's user avatar
0 votes
0 answers
34 views

What if our hearts didn’t pulse?

Let’s say we used an electric pump that’s smart enough to adjust the blood flow according to the needs of the body. What would be the effects on our organs? Would we survive without the beats? I just ...
DeepBlue's user avatar
1 vote
1 answer
53 views

How do I measure my resting heart rate?

I measured my sitting down, relaxed, not moving heart rate, which is around 65-80BPM. If I do the same measurement laying down, it's anywhere from 50-65BPM. While asleep, it dips into the 40s. The ...
eddiewastaken's user avatar
1 vote
1 answer
62 views

Can I calculate the blood pressure and pulse based on a given blood loss

Is there a function, graph, guideline or rule where I can see how a change in blood volume changes other relevant values? E. g. for every 1% of blood volume lost, heart rate rises 2 beats per minute, ...
Maritn Ge's user avatar
  • 135
2 votes
0 answers
112 views

Should people with tachycardia avoid choline supplements?

After doing some brief research online it appears choline can have an effect on the electrical system of the heart, there are several medical papers online that discuss this topic, however I'm not ...
bobwiley's user avatar
2 votes
0 answers
294 views

Proper sleep quality index for compare with heart rate patterns

I LIKE TO KNOW ABOUT how to compare result of some detected patters in heart rate for sleep quality,for something like this work: Image-based sleep motion and Slope detection on Hammock, hill and ...
Soheil Paper's user avatar
1 vote
0 answers
13 views

Study of heart rate delta-V during excercise?

Are there any studies into the impact of the rate at which a subject's heart rate is increased or decreased when beginning or ending an exercise session?
joshperry's user avatar
  • 111
1 vote
0 answers
23 views

Difference in heart muscle tissue growth (cardio vs low-rep intense weight lifting)

Below is a quote from a subreddit that says: I haven't kept up on the research, but the last thing I read back in college looked at weight lifters and long distance runners. Both types had larger ...
ZenVentzi's user avatar
  • 271
0 votes
0 answers
15 views

Standards for Electrocardiography and Photoplethysmography

Electrocardiography and Photoplethysmography are two techniques/devices that are commonly used to measure heart rate. My question is, clinically speaking, what are the standards these devices must ...
Ηλεκτρολόγος Μηχανικός's user avatar
1 vote
0 answers
510 views

Why is Ebrantil (Urapidil) not FDA approved?

Ebtrantil (Urapidil) is commonly used as an antihypertensive in Europe, also due to its additive interaction with other antihypertensives, and less likely to alter the heart rate compared to similar ...
Narusan's user avatar
  • 6,931
1 vote
0 answers
50 views

Normal Sleeping Heart Rate Range

I recently got a heart rate tracker and I've noticed that when I sleep my heart rate consistently spikes fairly high. It has reached 165 bpm before, but most times it's under 150. That seems a bit ...
drg's user avatar
  • 163
1 vote
0 answers
73 views

Big difference between waking and resting heart rate

I recently got an Apple Watch and am using the HeartWatch app. I'm concerned because my sedentary heart rate is pretty high - it's about 85 bpm with frequent spikes to 100, but my waking heart rate is ...
Dane's user avatar
  • 153
2 votes
0 answers
41 views

Heart Rate Versus Respiratory Rate

There are times when my respiratory rate increases more than my heart rate. If running or cycling at a stead state (flat terrain, constant speed), heart rate and respiratory reach some steady state. ...
jddobbs's user avatar
  • 21
0 votes
1 answer
8k views

Does a cold or flu typically affect resting heart rate?

Background I have had a Fitbit heart tracker for several months. Typically, it reports my resting heart rate around 60 bpm, with a standard deviation of 1-2 bpm. A month ago, I got some kind of ...
jvriesem's user avatar
  • 121
5 votes
0 answers
40 views

given heart rate data over 1year with 1Hz time res, what can we learn?

I've been wearing my fitbit charge2 for a bit over a year, of course with small pauses for charging etc. The heart rate is measured with a 1Hz frequency and a resolution of 1. Now fitbit determines ...
Leon's user avatar
  • 51
4 votes
0 answers
68 views

Reaching Maximum Heart Rate during PE

I’m 13, and during PE I regularly reach 200+ BPM right after I’m done with what they call our “fitness plan.” I can feel my heart racing, but I’m not lightheaded or anything. My heart rate goes down ...
ZeKalk's user avatar
  • 41
1 vote
1 answer
15 views

gauge R&R of time varying data: how to discriminate between equipment variation and actual signal variation?

I am trying to evaluate a measurement system suitability for some physiological parameters say heart rate. If I collect say 30 measurements of my heart rate, the standard deviation of the population ...
eykiriku's user avatar
2 votes
0 answers
142 views

How does the heart rate change during REM and non-REM stages?

I read different references and I understand that the average heart rate during sleep decreases by some beats per minute. The heart rate is slower in non-REM stage than REM but I found no measurements ...
Rorrro's user avatar
  • 41
1 vote
0 answers
47 views

Low Resting Heart Rate but high bp [closed]

My resting heart rate is around 50 bpm but my blood pressure is around 122/78. Is this unhealthy?
heartratehy's user avatar
1 vote
0 answers
61 views

Resting heart rate is 40

I'm not an athlete and definitely don't think I'm fit, I do exercise every now then. my RHR is about 40 and sometimes it goes as low as 38. I used to be able to run a 5k without stopping but I do feel ...
B H's user avatar
  • 11
0 votes
1 answer
196 views

How can blood pressure be high but my pulse low?

Someone whose blood pressure reads 188/134 with a pulse of 62. Read a few more times even after she woke up it stays in that area. Calm, not taking any drugs, normal weight, good health and not sick ...
Muze's user avatar
  • 1
2 votes
1 answer
286 views

Trouble finding radial pulse in patients

I have just started doing volunteer work on an ambulance, but I had noticed that every time I had to check a patient's heart rate, I couldn't find the pulse and had to have someone else do it instead. ...
yermi.h's user avatar
  • 21
2 votes
2 answers
642 views

Normal resting heart rate and how to measure it

There is somewhat conflicting information on what the "normal" resting heart rate should be. Some sites cite rates between 60 and 100 as being normal, with rates below 60 being defined as ...
Lou's user avatar
  • 197