Endurance Exercise Can Damage Your Heart

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so let’s talk about endurance exercise and your heart okay there’s a really good book if you do endurance exercise you need to get this book it’s called the haywire heart how too much exercise can kill you and what you can do to protect your heart by chris case in john manderola one third of marathoners experience dilated ventricles okay so you have the heart is four chambers there’s two primer pumps they’re called atriums then you have two major pumps which are ventricles so what happens with athletes is they start to develop dilated ventricles or in the large ventricles on one side so it starts getting bigger there are indications of heart muscle damage and cardiac fibrosis that scar tissue within the heart and that can develop in all sorts of problems with the heart one would be ventricular tachycardia which is one type of arrhythmia it’s kind of a short circuiting what the authors talk about in this book is mainly doing exercise for over one hour every day sustained endurance exercise five days a week week after week after week what happens is it creates structural and functional changes within the heart now because the heart is becoming stronger and more efficient and it pumps up more work and oxygen the heart rate comes down and that heart rate can come down from a normal heart rate which is like 72 to 60 to 50 to 40 to sometimes even 30. because the heart doesn’t have to work that hard everything is very very slow okay and that’s healthy right well what happens is you also get cardiomegaly so the actual size of the heart can get bigger one side of the heart can become bigger than the other side depending on certain variables and the name for something getting bigger is called hypertrophy so the problem is having an imbalance from the left side and the right side because the heart has various things in it that create rhythm they’re called pacemakers you have two primary pacemakers but you also have a backup system and even another backup system i don’t want to get into the details of that but you just need to know that there are certain pacemakers of the body that are all supposed to be coordinated the problem is when the heartbeats start going down too low that can trigger or alter certain secondary pacemakers in the heart and that can create extra beats okay you have premature atrial contractions or premature ventricular contractions so we have this situation we have this real strong healthy heart which is not pathogenic that’s giving these arrhythmia problems so in the book there’s some great case histories of many people that have gone through this actually it’s very very common and what they did to handle these extra beats the biggest thing is to cut back on the exercise the problem with sustained endurance exercise is you’re working against the body’s natural rhythms because anything sustained is very very stressful on the body if you’re an athlete and you’re noticing some of these extra beats what’s recommended is you start to cut back on your exercise you may even want to do interval training because that’s erratic and it works with the body it’s less stressful than sustained exercise and get the book read it there’s a lot more details to talk about in this video i mainly wanted to communicate to the endurance athletes to bring up some awareness on the fact that even though they can have a very healthy heart you could have a problem with arrhythmias and there is something you can do to reverse this if you have the knowledge i’ll put a link down below of this book check it out and thanks for watching