Stroke volume in athletes

Common Questions and Answers about Stroke volume in athletes


Avatar f tn I suggest keeping a journal of whether your PACs correlate with what you eat, drink and how you exercise (over training can do it). Make sure you magnesium and potassium levels are in range. Even in the worse case where you do end up with AF years down the road, ablation can cure it if you catch it while it is still paroxysmal, if you find a center that does a high volume. A top level operator will do 200 AF ablations or more per year.
1124887 tn?1313758491 Higher EF stronger contractility. The converse is true a reduction in volume the lower the contractility and lower stroke volume. Your question seems to be addressing the control factors to maintain integrity of a balance of blood flow between the left and right side of the heart.... Any exertion will be a additional burden to the heart to supply more oxygnated blood to the muscles and that would be a difference in heart rate, blood flow, EF, etc. and that could explain the difference.
Avatar n tn but the majority of times blood came out in the sperm, or only after ejaculation during urination, or both in the sperm and the urine. once i woke up without having had sex that week and urinated blood. i tested my blood, sperm, and urine and the only abnormality was a high psa level. my dr said it is very rare and is that high in 40/50 year old. i did a biopsy for prostate cancer and my dr said that everything was ok. after the biopsy, i waqs back to normal.
Avatar n tn 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.
1124887 tn?1313758491 I think some of the gains in stroke volume that athletes get is attained through muscle stretch, from what I’ve read over the years. Again I'm thinking along the lines of "too much of a good thing".
Avatar n tn The heart is a muscle, and like all muscles in our body, when worked hard they build mass. When the heart enlarges, it can cause problems with the efficiency factor of how your heart expels blood from one chamber of the heart to the next. If you received that information, I'm guessing you had a procedure that made that determination. You are entitled to receive a written procedure report.
Avatar m tn A man has 70ml stroke volume (SV) - blood pushed out of chamber end diastolic volume 120ml (EDV) - blood in relaxed chamber (full) 70ml/120ml = 0.58 = 58% EF LVEF - left ventricle RVEF - right ventricle Normal values are - 50/55 - 75% Anything above 75% is classed as abnormal and can be a result from heart tissue damage or inefficient Mitral valve. Above 75% the blood is too forceful when leaving the heart and can cause high blood pressure.
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 For all we know, I bet when you run your stroke volume goes much higher than someone who leads a sedentary lifestyle. Studies have shown that in hyper trained athletes, LVEF can become lower or higher. A piece I've read that makes sense is that when you compare athletes to sedentary people, the at-rest *stroke volume* will usually measure the same as sedentary people when studied.
Avatar n tn Ultimately, ventricular remodeling may result in diminished contractile (systolic) function and reduced stroke volume". To Jim: I agree with Jon. Finding the underlying cause and successfully treating will/can reverse remodeling (depending on the cause). A diseased hypertrophied heart tend to relax more slowly after contraction (slower recovery), reduces filling space, and develop less power, whereas the athletic heart is capable of performing normally.
Avatar f tn Chances are, if you receive one that is significantly lower, than you’ve just done the calculations incorrectly. However, if the pulse pressure is genuinely low, it reflects a low stroke volume, which means your heart is not pumping out the amount of blood it is supposed to. This could be because of a very serious problem, such as congestive heart disorder or shock." Excerpt from "Pulse Pressure....The Other Blood Pressure!
Avatar m tn I also don't see how my stroke volume could be 60.2. I am a college runner, and although my value is considered normal, 70 is the average normal, so shouldn't I be more up there or at the high end of normal given that I can run faster than the average person over long distances?
Avatar f tn An athlete's has a physical change that is a thickening of the heart wall, thereby a stronger contraction with each stroke...this increase in stroke volume enables a dcrease in heart rate to meet system demand for blood oxygen at rest. It is not pathological due to the alignment of the heart cells different from the pathophysioloical with hypercardiomyopathy heart cell arrangement...but both condition can enlarge the left ventricles.
996946 tn?1503252712 No, tachycardia is not good exercise for the heart ;) Good exercise for the heart both makes the heart run faster and pump harder. A rapid heart rate alone will in the long run dilate the heart, and just heavy beats (high blood pressure) will in the long run thicken the heart walls. It's something like "minus x minus = plus". An athletes heart is both dilated AND thickened. It grows, but in both proportions. Just one of them is just bad.
Avatar m tn Because chamber size is the metric for volume of blood pumped with each stroke, you can evaluate the heart's LV functionality by what is called fractional shortening. LV diastolic (end point) minus LV systolic (end) divided by LV diastolic times 100. Reference range is 18 to 42%. Above 30 is considered normal, 26 to 30% represents mild decrease in ejection fraction, below is abnormal.
Avatar m tn The heart appears to be stretching and thinning and filling up with way more blood (LVEDV went from 117mL to 200mL). My stroke volume is now 123.5mL, whereas before it was 60.8mL. To be clear, I ran more back then than I do now, my symptoms are worse now.
1741471 tn?1407162630 Unless trained these large muscle groups will experience decline in volume, speed and connectivity. According to one of the best Neurobiologists in the country John Martin Ph.D and expert in the motor system explains how The motor systems of the brain and spinal cord control every movement we make, from the simplest to the most complex. Movements define us as humans every bit as much as our intellect, or our art. Movements have allowed us to excel over animals throughout evolution.
1454963 tn?1335299305 I would have to comment on the last sentence of 'is_something_wrong' post "and remember that PACs are only dangerous to the mental health." In recent years a number of studies that discredited the hypothesis that frequent PACs (more than 200 a day) are benign. One of them is "Frequent premature atrial contractions in stroke of undetermined etiology.
Avatar m tn 8cm systolic diameter, 22% FS, 117ml diastolic volume, 56.2 ml systolic volume, EF% 52, Stroke Volume 60.8, LVPW thickness .82cm, IVP thickness .88 So, my questions are the following: -Can you have some form of systolic dysfunction without ending up with an enlarged heart or an EF% lower than 50? -Could I have systolic dysfunction that is being controlled by my exercise, which is why I have been able to have an EF% in the low 50’s and no structural remodeling?
Avatar m tn If your ultrasound was OK, (which is the gold standard in determining heart and heart wall sizes) I wouldn't worry at all. 80% ejection fraction (I also had 80%) is essentially a sign of a strong heart, unless your doctor mentioned diastolic failure (which is often a result from long standing hypertension, where the heart walls increase in size but aren't able to relax when the heart fills up). Maybe you were a bit anxious during the test? I was. And that makes the heart contract stronger.
Avatar m tn That would mean that your heart would have to pump 300 ml of blood for each beat. Not even top athletes have a stroke volume above 180-200 ml, so that's impossible. What can be possible though, is that you have an irregular rhythm which isn't completely captured by the monitor, that for example every third or fourth beat is captured.
Avatar n tn Thickening of the heart wall and enlargement of the heart in endurance atheletes makes more heart muscle volume. The increase volume of heart muscle, in turn, may increase the probability of chance foci to misfire and cause an arrhythmia.
Avatar m tn If you aren't highly athletic, mid 30's is probably lower than desired. Athlete's get slower beats because their stroke volume is greater than normal. According to wikipedia (see Bradycardia article), some healthy athletes have had rates as low as 27bpm. The wiki article outlines several possible causes, but I think your intuition about age is leading you towards the most likely diagnosis.
Avatar n tn ejection fraction 68% shortening 39% left ventrical mass 190 grams with a stroke volume 98ml lv diastolic volume 144ml lv systolic volume 46ml lv 5.4cm (enlarged) lv wall thickness 1.0cm left atrium 3.8cm estimated pulmonary artery pressure slightly elevated mild aortic insufficiency mild to moderate tricuspid regurgitation right ventrical slightly enlarged but no value given Can you please explain these findings to me and how serious are they?
Avatar m tn 75-30 ml/m² STROKE VOLUME 129.9 51-133 ml/beat CARDIAC OUTPUT 7.79 2.82-8.82 l/min CARDIAC INDEX 3.60 1.74-4.20 l/min/m² The left atrium is of normal size. No left atrial appendage thrombus. Normal mitral valve. Trace MR. The LV is enlarged. LVEDD of 6.3cm, ASWT of 09cm, PSWT of 0.8cm. Normal global systolic LV function. There are no regional wall motion abnormalities. No intracavitary thrombus is seen. The estimated LV ejection fraction was 60%.
Avatar m tn ) When the stroke volume is this high, a little blood vessel constriction can cause higher increase in blood pressure than otherwise. Alcohol in the amount you mention shouldn't increase your blood pressure. Please be aware that blood pressure can greatly increase even with stress you aren't aware of! My blood pressure is (at rest, in bed) 110/60. After dinner it's often 125/70. At the doctors office it's 140/80 and at the cardiologist it's 150/90. Before connecting to EKG it's 160/110.
Avatar n tn In further reading, I find that this is quite normal, particularly among athletes with greater stroke volume. I guess the short answer is that the docs really don't know it all. The best we can do is control the risk factors we are aware of. I take a low dose beta blocker to reduce bp during exercise, folic acid + B6 +B12 for homocysteine, and vytorin for cholesterol. Retirement has lowered my daily stress significantly, Now, if I could only get rid of a teenage daughter....
Avatar m tn Hello. First, if your LV dimensions are 5,2 and 3,3 (diastole and systole), I would assume your EF was above 50%. EF is not easily measured on echo, but if you assume that your left ventricle is a cube (which it isn't, but it should illustrate my point a little), your end diastolic volume would be 5,2 x 5,2 x 5,2 = 140 ml, and your end systolic volume 3,3 x 3,3 x 3,3 = 35 ml, stroke volume 105 ml and EF 75%.
Avatar f tn LV is still mildy dilated, but heart is still working fine (EF 65%ish) and particularly stroke volume is high. Conclusion, very likely Athlete's Heart, but one more u/s to be done in a year's time to be absolutely sure. Unfortunately I did not see my own cardiologist for the results, but someone from his team, who didn't really know my history and thus I didn't get to ask all my questions.