Stroke volume for normal resting heart

Common Questions and Answers about Stroke volume for normal resting heart

stroke

1124887 tn?1313754891 EF is a compensating factor and helps maintain a balancing flow of blood between the right and left side of the heart. Stroke volume is inverse to the heart rate. Slow heart rate the greater the stroke volume which indicates the heart rate is also a compensating factor...the slower the heart rate the more time to fill. Wide pulse pressure (no medication, etc) can be the outcome of increased CO due to fitness, anxiety, hyperthyroidism, etc.
Avatar m tn CO is a product of blood volume per heart stroke and heart rate. The higher/better the stroke volume (weak, strong, stronger contractions) the fewer heart beats (more for weak, less for strong, least for stronger) are required to meet demand (held constant for illustration) for blood oxygen. A well-condition individual requires fewer heartbeats due to strong contractions. It is the stroke that determines EF...not the CO, as CO can vary by an increase or decrease of HR.
Avatar m tn ve had an heart echo, ekg, chest xray done by my primary doctor 3 months ago. All was normal just my heart just had a small leaky valve he didn't seemed concerned about it said it was common. Basically I'm wondering why my top number (systolic) so high but bottom is normal?? I check my Bp about 3 times daily an its usually 145- 157.
Avatar n tn The only way I know of to lower resting heartrate is to strengthen your heart through exercise (it improves the efficiency of your muscles including the heart and also increases the stroke volume of the heart so that you pump more blood with every beat) but I don't know how issues like age, heart disease etc affect that process.
Avatar m tn Ejection fraction (Ef) is the fraction of the end-diastolic volume that is ejected with each beat; it is stroke volume divided by end-diastolic volume. Normal in a man is 50-68%. With a given sized ventricle and its volume, and its ability to contract, I fail to see how a faster or slower heart rate will affect the volume of blood leaving the chamber. If the heart pumps faster, the volume leaving the ventricle will always be the same.
Avatar n tn I've been quite sedentary since taking an early retirement several years ago. I'm 53 years old now and trying to get out of a state of being very deconditioned. I've been walking for 20 minutes a day, which is pretty minimal, so I decided to buy a Lifefitness 9500 elliptical trainer. The trainer certainly used some new muscles, my legs were like rubber for the first few days, and I only used it for a few minutes.
Avatar n tn i have been suffering from shortness of breath for 5 months.recently i have a echocardiogram. it shows that my stroke volume is 47 ml . is this is a normal value or it is a sign of a heart disease? my ef is 61%.
Avatar m tn This happens by a system of vasodilation and vasoconstriction coupled with the pumping rate and stroke volume of the heart. Rather than make frequent changes in volume, the body changes the configuration of the total container (all the vessels) and increases the speed at which the resource is renewed.
Avatar f tn Hello :) 1. A "normal heart rate" simply can't be defined. We are all different, and what's normal to some people isn't normal for others. Think of it as cars with diesel or gas engines, one engine has a "normal" RPM when driving in 80 km/h on the highroad (yes, in Norway that's the speed limit, ridiculous :p) of 1800 and another 2700. But the first engine will probably stop at 4500 RPM and the other on 7000 RPM.
Avatar n tn When there is a significant drop in CO the vessel enthelium cells sends a message to increase the blood volume (recognized and not able to distinquish if there is a serious blood loss). The system controls stroke volume by venus return. Stroke volume AND heart rate determine CO (cardiac output). I believe you may be confused by not recognizing the determinants of the venus return phenomonon. Heart rate is result of sympthetic and parasympthetic input.
907968 tn?1292622204 stroke volume and vessel compliance (resillent or lack thereof). A healthy cardiovascular system will raise the pulse pressure (PP) with exercise (more forceful contractions and increase in blood volume per stroke) destinquished by the increased systole metric and diastole stays about the same. There is a return to normal PP (about 40) in several minutes. The following supports a change in blood pressure with a heart attack (stroke volume is decreased).
Avatar n tn For a more definitive measurement a right heart catheterization is necessary because the exercise echocardiogram has limitations, namely the inability to measure left-sided filling pressures and cardiac output (stroke volume) that is in part needed for evaluation.....
Avatar m tn As is the heart rate, blood pressure, etc. the EF (ejection fraction) is an estimate and measurement that is always in flux to maintain a balance of blood flow between the right and left side. The simple, every second/minute dilation of the left ventricle increases the EF, reduction decreases EF. An athlete's heart muscle increases contractility strength...a resting heart rate can be less than 60 bpm.
Avatar n tn I don't think its the Toprol that is causing your decreased heart rate. I feel it reduces mine by maybe 10 bpm at the most at the 25 mg dosage. The prescribing info claims 14% reduction for a 50 mg dose, the lowest tested. Its commonly prescribed as high as 200 mg, so our 25 mg is very low. For what its worth, the effect of beta blockers seems to wear off with me as I run further.
Avatar f tn I am a healthy, fit, and very active 47 year old woman--healthy lifestyle and diet, runner, and I ride my bike for transportation. Resting HR of 52. PACs started a few weeks ago, so got a Holtor which reported over 4000 PACs/24 hours (that was half of what they had been previously), sleeping HR went as low as 41. Had an echocardiogram the other day, and everything was normal, except: "severely increased left atrial volume." Mysteriously, left atrial *size* (i.e., diameter) was normal.
Avatar m tn s heart pumps well because it has stronger contractions. The resting heartbeat is below 60 (normal) at rest, but a 43 may be too low!? An athlete's heart is not pathological and returns to normal size with reduction of the hear's workload. The inconsistency is your heart is not pumping adequately as 40% (50 to 70 EF is normal) almost always indicates weak contractions and not strong contractions from an athlete's heart.
Avatar f tn The average resting heart rate for an adult is between 60 and 100 beats per minute, while well-conditioned athletes can achieve between 40 and 60 beats per minute. The maximum pulse rate is 220 minus your age, and the target for a healthy pulse rate during, or just after, exercise, is 60-80 per cent of this. Therefore, if you are aged 50, you should aim to build up fitness gradually until you reach a target pulse rate during exercise of between 102-136 bpm (beats per minute).
Avatar n tn I don't know if it's normal or too high but my resting heart rate has been about 95 for the past few weeks.
10366239 tn?1409616907 Anyone else have or have had an issue with a fast heart rate while resting/sitting. I'm assuming it's got something to do with increased blood volume or hormones. But it's really exhausting and sometimes I just want to relax and my heart won't slow down. 32 weeks.
Avatar m tn Over many, many years, with high blood pressure and being very overweight, the inside of your ventrical gets thicker, and the volume inside therefore decreases, decreasing stroke volume and causing your heart rate to become higher and your heart then has to work harder to pump the same amount of blood, which over many years causes the ventricular walls to stiffen. I hope that clarifies some of it.
Avatar m tn I agree with Jon and to give you some insight: High blood pressure is anything above 120/80. However, mild elevations beyond those numbers only slightly increase the risk of significant health problems. But generally doctors don't prescribe medication to bring down blood pressure until the systolic reaches 140 or the diastolic reaches 90. The exception is for people with diabetes or impaired kidney function, and medication for anything above 130/80.
1591333 tn?1297733419 So medication is needed to intervene to keep the volume of blood normal, medication to keep the heart rate within an acceptable range, and medication to help decrease heart size for a normal ejection fraction.
Avatar m tn For a perspective, diastole dysfunction compromises left ventricle filling volume, inadequate stroke volume and operating at a high pressure regimen. LV filling volume is reduced due to increased wall size crowding out available space. Inadequate stroke volume is usually due to wall thickening and stiffening and loss of elasticity. High pressures can dilate upper chamber to compensate for gradient pressure across the mitral valve. That is the pathology.