|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
What do you guys think of the writings of Leonard Zinn, such as this article:
http://www.velonews.com/2016/01/bike...-issues_393197 concerning cyclists who have heart attacks later in life due to having an enlarged heart? Do some people have a genetic predisposition to the condition? |
Ads |
#3
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
Basketballers die from cardiac arrythmia.
I bruised my cardiac sack from bending over working, I'm 6/4. Difficult recovery. Pseudo attack, valve inop. Outside the touring envelope but suggestive. Medicals state cycle psitive jams torso organs n is unhealthy. Bottom end spirtswise. 3) OEM bar length caters to greater profit n imaginary aero benefits not lung efficiency. Try this one ...itsa poss mindbender. The basketball parallel exists as an extended top end interval over training or top end on road/hill with undertraining but the parallel rests on long term, ie running up n down the pro court under duress, practice. He ran a short game then laid down n died. |
#4
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Thu, 9 Feb 2017 20:54:09 -0800 (PST),
wrote: What do you guys think of the writings of Leonard Zinn, such as this article: I take Lennard with a large grain of salt. I've seen him get enough stuff about bikes wrong over the years, although it's also been at least 15 years since I've read any of his articles. I would use a larger grain of salt when it comes to Lennard writing about medical stuff. I work in health care and see time and time again that non-medical writers screw up interpretation of studies and publish inaccurate information more often than they get it right. http://www.velonews.com/2016/01/bike...-issues_393197 concerning cyclists who have heart attacks later in life due to having an enlarged heart? The evidence overwhelmingly shows that people who engage in regular aerobic exercise have fewer heart attacks and that, when they do, they are likelier to have a better outcome. People who exercise regularly also tend to maintain cognitive functioning better longer, are at soemwhat lower risk for all forms of dementia and if they do develop it tend to do so later in life. The problem with atributing things like ventricular hypertrophy, etc., to activities like cycling is that those things also develop in people who don't evercise. Would the person have gotten those problems even if they didn't ride bike? Do some people have a genetic predisposition to the condition? Maybe. But not necessarily. There are lots of other causes of heart problems. Hyperthyoidism, for example, can cause atrial fibrillation. The athletes who do develop cardiac problems from exercise are more than likely those on Olympic-caliber training regimens. This is a level of training that exceeds what almost anyone who has a day job can manage. Even most Cat 1s don't come near that level of training. Or they are people who already have a genetic or congenital risk factor and probably would have developed those heart problems if they did no exercise. |
#5
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Thu, 9 Feb 2017 20:54:09 -0800 (PST),
wrote: What do you guys think of the writings of Leonard Zinn, such as this article: http://www.velonews.com/2016/01/bike...-issues_393197 concerning cyclists who have heart attacks later in life due to having an enlarged heart? Do some people have a genetic predisposition to the condition? That would be me. Both my parents, all of their brothers, and most of their sisters, had cardiac issues. My father had a stroke at 86 which eventually killed him. My mother had a fatal heart attack at 56. I'm currently 69. Choose your parents wisely. I started having problems in 2001, at the age of 53 which resulted in a triple bypass operation. That held together for 15 years, when I had to have two stents installed because the bypasses were clogged with plaque. I also went to rehab for about 15 sessions to see what I could tolerate and (among other things) to teach me how to properly do exercise. I also discovered that I had PVC (premature ventricular contractions) which drives the heart monitor nuts, but otherwise doesn't seem to have much of an effect. The basic pitch was to do aerobic exercise, which requires the heart to pump oxygenated blood to various muscles. Aerobic exercise increases the heart rate and breathing rate to increase in a way that can be sustained for the exercise session. Bicycling is considered an aerobic exercise and was recommended by the physical therapist. Most of the machines that I used in rehab were something resembling a bicycle. In other words, if you do have some kind of heart condition, bicycling will probably be the recommended treatment. I don't know anything about enlarged heart problems, since I don't have the problem. This might help: http://www.mayoclinic.org/diseases-conditions/enlarged-heart/symptoms-causes/dxc-20305824 However, I do have some opinions on the article. It should be evident from the reader comments that everyone is more than a little different. The heart is a complex organ and can fail in a wide variety of ways. If you continue reading such horror stories, you're going to develop symptomitis or hypochondria. I suspect that fear will cause more problems than exercise. I'm told that any extreme can be bad for you. I presume that includes cycling. Like any machine, if you work it to its limit over and over again, you'll eventually break it. That's also part of the theory behind cross training. The same applies to your body. Good luck. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#6
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
I had a good friend who unexpectedly died of the condition about a year ago.. He was always a much stronger rider than I was, and had a much lower resting heart rate, which I take to mean that his heart was larger than mine. My layman's theory on the subject (and of course I realize that I don't know what I am talking about because I am not a doctor) is that some people are genetically predisposed to greatly increase their heart size with aerobic exercise, and some people are not so predisposed. And when an athlete has developed a large heart due to strenuous exercise when young, his heart has difficulty dealing with its excessive pumping capacity when he gets older and doesn't exercise as hard as he used to.
|
#7
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Wednesday, February 15, 2017 at 5:59:23 PM UTC-8, wrote:
I had a good friend who unexpectedly died of the condition about a year ago. He was always a much stronger rider than I was, and had a much lower resting heart rate, which I take to mean that his heart was larger than mine. My layman's theory on the subject (and of course I realize that I don't know what I am talking about because I am not a doctor) is that some people are genetically predisposed to greatly increase their heart size with aerobic exercise, and some people are not so predisposed. And when an athlete has developed a large heart due to strenuous exercise when young, his heart has difficulty dealing with its excessive pumping capacity when he gets older and doesn't exercise as hard as he used to. It varies by exercise. Weightlifters get enlarged hearts, I read, whereas cyclists, or was it runners, do not. Rowers are in between as the compression stroke is a bit like weightlifting. |
#8
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Wed, 15 Feb 2017 17:59:21 -0800 (PST),
wrote: I had a good friend who unexpectedly died of the condition about a year ago. He was always a much stronger rider than I was, and had a much lower resting heart rate, which I take to mean that his heart was larger than mine. My layman's theory on the subject (and of course I realize that I don't know what I am talking about because I am not a doctor) is that some people are genetically predisposed to greatly increase their heart size with aerobic exercise, and some people are not so predisposed. And when an athlete has developed a large heart due to strenuous exercise when young, his heart has difficulty dealing with its excessive pumping capacity when he gets older and doesn't exercise as hard as he used to. I believe that you are confusing "Athletic Heart Syndrome" with the "enlarged heart" or "hypertrophic cardiomyopathy"' http://www.heart.org/HEARTORG/Condit...p#.WKVCxT7NX7g Hypertrophic cardiomyopathy usually is inherited. It's caused by a change in some of the genes in heart muscle proteins. HCM also can develop over time because of high blood pressure or aging. Diseases such as diabetes or thyroid disease can cause hypertrophic cardiomyopathy. However, the cause of the disease isn't known. http://www.mayoclinic.org/diseases-c...s/dxc-20305824 "An enlarged heart can be caused by conditions that cause your heart to pump harder than usual or that damage your heart muscle. Sometimes the heart enlarges and becomes weak for unknown reasons (idiopathic). A heart condition you're born with (congenital), damage from a heart attack or an abnormal heartbeat (arrhythmia) can cause your heart to enlarge." The condition called "Athletic Heart Syndrome" See https://www.completehumanperformance...letes-heart-2/ "If athlete\u2019s heart\u201d was a sign, or form, of heart disease, you would expect two things to be true: 1. Training that increases heart size should decrease heart function. 2. Athletes with large hearts should have poorer heart function than non-athletes. Neither of these conclusions are usually true. First, training that increases heart and coronary artery size generally improves heart function or has no effect.(14-19) Second, endurance athletes with large hearts tend to have as good or better heart and blood vessel function compared to healthy non-athletes and other athletes.(20-47) This is also true for football(48-50), handball(51,52), tennis(53), soccer(54), hockey(55), and basketball players.(56-58) or http://www.merckmanuals.com/professi...2%80%99s-heart "Athlete's heart is a constellation of structural and functional changes that occur in the heart of people who train for 1 h most days. The changes are asymptomatic; signs include bradycardia, a systolic murmur, and extra heart sounds. ECG abnormalities are common. Diagnosis is clinical or by echocardiography. No treatment is necessary. Athlete's heart is significant because it must be distinguished from serious cardiac disorders. -- Cheers, John B. |
#9
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Wednesday, February 15, 2017 at 6:26:50 PM UTC-8, Doug Landau wrote:
On Wednesday, February 15, 2017 at 5:59:23 PM UTC-8, wrote: I had a good friend who unexpectedly died of the condition about a year ago. He was always a much stronger rider than I was, and had a much lower resting heart rate, which I take to mean that his heart was larger than mine. My layman's theory on the subject (and of course I realize that I don't know what I am talking about because I am not a doctor) is that some people are genetically predisposed to greatly increase their heart size with aerobic exercise, and some people are not so predisposed. And when an athlete has developed a large heart due to strenuous exercise when young, his heart has difficulty dealing with its excessive pumping capacity when he gets older and doesn't exercise as hard as he used to. It varies by exercise. Weightlifters get enlarged hearts, I read, whereas cyclists, or was it runners, do not. Rowers are in between as the compression stroke is a bit like weightlifting. Think I meant thicker walls. It's thicker walls that weightlifters get, and that rowers get to a lesser extent. |
#10
|
|||
|
|||
Any thoughts on athlete's enlarged heart due to cycling?
On Thu, 16 Feb 2017 12:37:09 -0800 (PST), Doug Landau
wrote: On Wednesday, February 15, 2017 at 6:26:50 PM UTC-8, Doug Landau wrote: On Wednesday, February 15, 2017 at 5:59:23 PM UTC-8, wrote: I had a good friend who unexpectedly died of the condition about a year ago. He was always a much stronger rider than I was, and had a much lower resting heart rate, which I take to mean that his heart was larger than mine. My layman's theory on the subject (and of course I realize that I don't know what I am talking about because I am not a doctor) is that some people are genetically predisposed to greatly increase their heart size with aerobic exercise, and some people are not so predisposed. And when an athlete has developed a large heart due to strenuous exercise when young, his heart has difficulty dealing with its excessive pumping capacity when he gets older and doesn't exercise as hard as he used to. It varies by exercise. Weightlifters get enlarged hearts, I read, whereas cyclists, or was it runners, do not. Rowers are in between as the compression stroke is a bit like weightlifting. Think I meant thicker walls. It's thicker walls that weightlifters get, and that rowers get to a lesser extent. Actually weight lifters tend to suffer from a artery problem known as "Aortic Dissection" see: http://www.livestrong.com/article/33...rt-your-heart/ "A study by cardiothoracic surgeons at Yale-New Haven Hospital in December of 2003 proved that there is a strong link between heart problems and weight lifting, and strength training as a whole. Dr. Elefteriades, who led the study, says that the study was conducted on five healthy individuals who suffered a condition called aortic dissection during weight lifting. The study showed that heavy weight lifting can lead to a rise in blood pressure to almost 300. What is Aortic Dissection If you are into lifting weights and have a family history of heart problems, you need to be aware of the condition called aortic dissection. Aortic dissection is a condition where the wall of the aorta splits. The splitting of the aortic walls allows blood, already under high pressure due to strenuous lifting, enter the heart, causing sharp and stabbing pain. The condition is generally lethal, unless surgery is performed." I believe you are confusing "Athletic heart syndrome, (AHS) also known as athlete's heart, athletic bradycardia, or exercise-induced cardiomegaly is a nonpathological condition commonly seen in sports medicine, in which the human heart is enlarged, and the resting heart rate is lower than normal. See: https://en.wikipedia.org/wiki/Athletic_heart_syndrome The athlete's heart is associated with physiological remodeling as a consequence of repetitive cardiac loading. Athlete's heart is common in athletes who routinely exercise more than an hour a day, and occurs primarily in endurance athletes," -- Cheers, John B. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Heartrate comparison training zones cycling and running - same athlete | Justin Lewis[_3_] | UK | 14 | November 11th 10 07:02 PM |
Cycling helmet saves life of Kendal athlete | Mr. Benn[_5_] | UK | 1 | August 21st 10 04:00 PM |
When Aluminum crank square hole get enlarged. | MuniAddict | Unicycling | 15 | October 5th 07 08:37 PM |
Seat for Enlarged Prostrate | [email protected] | General | 1 | July 11th 05 03:48 AM |
can dropout spacing be enlarged? | Paul Nevai | Techniques | 11 | May 11th 04 06:48 PM |