OK. 爱学习的jeffie研究了一下, 总结一下我认为比较重要的信息: 1. Exercise-induced allergy 多半跟之前吃的食物或者medication有关, the foods and medications most often associated with E.I.A. are oranges, peaches, pineapple, bananas, shellfish, celery, and aspirin. 2. 不是什么时候都会发生, 所以很难identify过敏源等等. 3. 可以很严重. 怎么严重呢, 可能会引发严重的过敏反应,呼吸困难, 出冷汗, blood pressure降低, 头晕, confusion etc. 4. So far, both treatment and prevention of exercise-induced anaphylaxis are limited to stopping the workouts as soon as preliminary symptoms appear, like itching or hives, and administering drugs if the victim has difficulty breathing or collapses. People who have suffered E.I.A. episodes need not give up their otherwise healthy habit of exercising if they take certain precautions: - Stop exercising at the first sign of symptoms and until symptoms disappear completely; - Use the buddy system whenever exercising, and make sure the buddy knows how to administer adrenalin; and - Avoid any identified aggravating factors, like eating less than two to four hours before exercising or taking aspirin less than six hours before exercising. "Most people have the advance symptom, the preceding itch, and they will be fine if they stop exercising at that first sign," says Dr. Simon. "But if they ignore the warnings and go on, they risk a serious, possibly life-threatening anaphylactic reaction. When the itch goes away, it is usually possible to go right back to the workout with no problem." [此贴子已经被作者于2006-4-9 22:10:06编辑过]
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin. You see, there are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When our bodies are sufficiently fit, these capillaries remain open allowing maximum blood passage, but, when unfit and inactive, they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person, however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch. The problem should go away once you have increased your fitness level
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin. You see, there are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When our bodies are sufficiently fit, these capillaries remain open allowing maximum blood passage, but, when unfit and inactive, they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person, however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch. The problem should go away once you have increased your fitness level
Anyway, itchness is usually a sign of allergy, and you should rule-out the possibility of severe E. I. A. It is funny that when I was searching on the internet, I run into a similar post in a nAmerican forum. Most of them related this to allergy, and took anti-histimine for self-treatment, while most of us here would think it is some kind of natural stuff. American people are really obsessed about pills!! [此贴子已经被作者于2006-4-9 23:15:36编辑过]
原来好多人都有这个问题。 更加谢谢以上热心做research的同学们，你们的严谨求知态度令我汗颜。 Hope it is because of the inactiveness. But I will be more cautious about the possibility of allergy.
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin. You see, there are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When our bodies are sufficiently fit, these capillaries remain open allowing maximum blood passage, but, when unfit and inactive, they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person, however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch.The problem should go away once you have increased your fitness level
我以为是开始身体温度低，后来血液循环加快，体温升高，然后怎么地身体就发痒了
难道是什么更严重的问题？
[此贴子已经被作者于2006-5-4 8:24:48编辑过]
1. Exercise-induced allergy 多半跟之前吃的食物或者medication有关, the foods and medications most often associated with E.I.A. are oranges, peaches, pineapple, bananas, shellfish, celery, and aspirin.
2. 不是什么时候都会发生, 所以很难identify过敏源等等.
3. 可以很严重. 怎么严重呢, 可能会引发严重的过敏反应,呼吸困难, 出冷汗, blood pressure降低, 头晕, confusion etc.
4. So far, both treatment and prevention of exercise-induced anaphylaxis are limited to stopping the workouts as soon as preliminary symptoms appear, like itching or hives, and administering drugs if the victim has difficulty breathing or collapses.
People who have suffered E.I.A. episodes need not give up their otherwise healthy habit of exercising if they take certain precautions:
- Stop exercising at the first sign of symptoms and until
symptoms disappear completely;
- Use the buddy system whenever exercising, and make sure
the buddy knows how to administer adrenalin; and
- Avoid any identified aggravating factors, like eating less than
two to four hours before exercising or taking aspirin less than
six hours before exercising.
"Most people have the advance symptom, the preceding itch, and they will be fine if they stop exercising at that first sign," says Dr. Simon. "But if they ignore the warnings and go on, they risk a serious, possibly life-threatening anaphylactic reaction. When the itch goes away, it is usually possible to go right back to the workout with no problem."
[此贴子已经被作者于2006-4-9 22:10:06编辑过]
A.
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin.
You see, there are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When our bodies are sufficiently fit, these capillaries remain open allowing maximum blood passage, but, when unfit and inactive, they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person, however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch.
The problem should go away once you have increased your fitness level
对我的CASE
是因为周边太干燥了，运动时候，最开始皮肤和肌肉都需要水分。大量的液体都先供应肌肉去了。主要出现在四肢上，避免方法 运动前先润润四肢的皮肤，上点BODY LOTION。有一些帮助。
Why Do I Itch When I Run?
A.
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin.
You see, there are millions of tiny capillaries and arteries inside our muscles which expand rapidly due to the demand for more blood that is brought on by exercise. When our bodies are sufficiently fit, these capillaries remain open allowing maximum blood passage, but, when unfit and inactive, they tend to collapse, allowing only minimal blood passage (which is sufficient for a sedentary person, however). The rapid expansion of these vessels causes adjacent nerves to send impulses back to the brain which are interpreted as an itch.
The problem should go away once you have increased your fitness level
对的 我觉得是因为刚起步的原因，还有外界比较干。
It is funny that when I was searching on the internet, I run into a similar post in a nAmerican forum. Most of them related this to allergy, and took anti-histimine for self-treatment, while most of us here would think it is some kind of natural stuff. American people are really obsessed about pills!!
[此贴子已经被作者于2006-4-9 23:15:36编辑过]
我原来以为是太干燥了引起的
更加谢谢以上热心做research的同学们，你们的严谨求知态度令我汗颜。
Hope it is because of the inactiveness. But I will be more cautious about the possibility of allergy.
我刚来美国几个月，传说中的过敏就发生在我身上了啊
Why Do I Itch When I Run?
Don't worry; you aren't alone on this problem. It usually occurs during exercise performed after a long period of inactivity. The itching is not on the skin, it is inside the skin. You
see, there are millions of tiny capillaries and arteries inside our
muscles which expand rapidly due to the demand for more blood that is
brought on by exercise. When our bodies are sufficiently fit, these
capillaries remain open allowing maximum blood passage, but, when unfit
and inactive, they tend to collapse, allowing only minimal blood
passage (which is sufficient for a sedentary person, however). The
rapid expansion of these vessels causes adjacent nerves to send
impulses back to the brain which are interpreted as an itch.The problem should go away once you have increased your fitness level