Atrial Fibrillation - How Extreme Endurance Exercise Can Harm Your Health
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Again, for I know. Ready to share new things that are useful. You and your friends.Exercise is something we all know we should do. Many of today's diseases, such as heart disease and diabetes can be prevented with proper exercise. Exercise burns calories and conditions our musculoskeletal system to be more responsive. It exercises the heart, which is a muscle itself, so that it can pump more efficiently and last longer.
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We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from this experience.Exercise is a science, and there is no shortage of so called exercise "gurus" out there who claim to have developed the best routine. Most of them probably work, as long as the routine causes your heart rate to increase and works targeted muscle groups without injuring the joints. However, one form of exercise is garnering controversy, due to the number of people who die while engaging in it. The culprit: endurance exercise, such as marathon training, and especially ultra marathon training, where practitioners routinely run 50 to 100 miles straight without stopping.
Now, endurance exercise is an excellent way to increase circulation and build up cardiovascular health. But there is a point that can be reached where the drawbacks start to outweigh the benefits. And, this point is different in everyone, since everyone has his or her own, unique physiology. This is why there is no quantitative definition of "too much" exercise.
Here are the drawbacks of endurance exercise that everyone needs to be familiar with:
1. Running puts several hundred pounds per square inch pressure on your weight-bearing joint surfaces, such as your ankle, knee, hip, and lower spine joints. These joints are designed to handle shocks like those generated by a running stride, as they are lined with cartilage-- a soft, pliable shock-absorbent material. However, repeated running may cause tiny fissures to develop in cartilage, which may lead to arthritis in later years.
2. Endurance exercises like running can be dangerous to those with heart conditions, such as an enlarged heart or someone with atrial fibrillation, where the electric signal that coordinates heart contractions periodically goes awry. In fact, officials are examining whether a possible heart condition led to the sudden death of elite runner Ryan Shay during this year's New York City Marathon. Shay's father reported that his son was diagnosed with an enlarged heart.
3. Endurance running generates a large amount of free radicals throughout the body. Free radicals are positively charged oxygen molecules produced in cell mitochondria from cellular metabolism, very much like exhaust from a car engine. Free radicals can damage cell membranes by stripping electrons off the surface. Studies show that free radical damage, collectively referred to as oxidative stress, is a leading theory of degenerative diseases such as Alzheimers and even cardiovascular disease. Normally, the body's anti-oxidant defenses neutralize the free radicals, but extreme endurance exercise can swing the balance in favor of the free radicals. There are studies that tracked the lifespan of people who were known to run regularly for exercise, which showed that their median age was below the norm. This supports the conclusion that too much endurance exercise can be counterproductive to health.
The bottom line? Use common sense. Exercise, but not to the point where you are causing damage to your body. Make sure to get a physical exam prior to engaging in endurance exercise. If you feel pain in your chest, shortness of breath, or dizziness, consult with your doctor.
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