电磁脉冲可显著减轻骨关节炎疼痛
文章来源:未知 文章作者:meng 发布时间:2010-03-07 01:17 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

Electromagnetic pulses(电磁脉冲) significantly decrease pain and inflammation associated with osteoarthritis(骨关节炎) of the knee, according to Henry Ford1 Hospital researchers. In the double-blind, randomized(随机的) placebo-controlled study, 34 patients used a portable battery-operated device that emits a low-intensity pulsating2 electromagnetic frequency and experienced more than 40 percent pain relief(减轻,救济) on their first day.

"Our results show pulsed electromagnetic fields caused a significant decrease in pain" says Fred Nelson, M.D., associate program director for research and director of the Osteoarthritis Center, Department of Orthopaedics, Henry Ford Hospital.

Dr. Nelson will present the results this week at the Orthopaedic Research Society's annual meeting in New Orleans.

Dr. Nelson explains that in the laboratory, electromagnetic signals have been shown to decrease calcium3 in cartilage cells(软骨细胞) . This sets off a series of chemical events that can lead to reduced inflammation. Previously4, the electromagnetic fields have been used to control pain related to cosmetic5 surgery(整形手术) .

"We are really fine-tuning what we are doing to the cell environment with a very specific pulse sequence and frequency," says Dr. Nelson.

Patients strapped6 the small, ring-shaped plastic device around their knees for 15 minutes, twice daily for six weeks. The device was lightweight and patients could position the device directly over clothing. All participants were given a device with a coil(卷,线圈) that appeared to work but some were assigned active coils and others were given non-active coils. The electromagnetic device was developed by Ivivi Health Sciences of Montvale, New Jersey8.

Osteoarthritis of the knee is a leading cause of disability and loss of independence. It is a slow, progressively degenerative disease(变性疾病) in which the joint9 cartilage gradually wears away(磨损) due to trauma10(外伤,创伤) , aging or infection. As the cartilage thins, the surrounding bone thickens and often bones rub against(摩擦) one another, causing additional wear. Normal activity becomes painful and difficult.

Current treatments include drug therapies like anti-inflammatory medication or pain relievers; physical therapy; support devices; health and behavioral modifications11 such as weight loss; surgery and joint replacement12.

Dr. Nelson explains that medications often have variable success and can produce considerable side effects such as changes in kidney and liver function, a reduction in the ability of blood to clot7(凝结) as well as abdominal13 pain(腹痛) , nausea14(恶心,晕船) and indigestion(消化不良) .

"The exciting thing about this new approach is that it has been found to have no side effects, it is relatively15 low-cost in the long-run and the onset16(开始,进攻) of pain relief is immediate," says Dr. Nelson. "We look at electromagnetic pulses as a potential way to improve quality of life and independence for those who suffer from osteoarthritis of the knee."

Dr. Nelson says researchers will continue to look at the consistency17(一致性,相容性) of the relief, how long the pain relief lasts and if electromagnetic pulses might affect other joints18.



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1 Ford KiIxx     
n.浅滩,水浅可涉处;v.涉水,涉过
参考例句:
  • They were guarding the bridge,so we forded the river.他们驻守在那座桥上,所以我们只能涉水过河。
  • If you decide to ford a stream,be extremely careful.如果已决定要涉过小溪,必须极度小心。
2 pulsating d9276d5eaa70da7d97b300b971f0d74b     
adj.搏动的,脉冲的v.有节奏地舒张及收缩( pulsate的现在分词 );跳动;脉动;受(激情)震动
参考例句:
  • Lights were pulsating in the sky. 天空有闪烁的光。
  • Spindles and fingers moved so quickly that the workshop seemed to be one great nervously-pulsating machine. 工作很紧张,全车间是一个飞快的转轮。 来自子夜部分
3 calcium sNdzY     
n.钙(化学符号Ca)
参考例句:
  • We need calcium to make bones.我们需要钙来壮骨。
  • Calcium is found most abundantly in milk.奶含钙最丰富。
4 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
5 cosmetic qYgz2     
n.化妆品;adj.化妆用的;装门面的;装饰性的
参考例句:
  • These changes are purely cosmetic.这些改变纯粹是装饰门面。
  • Laughter is the best cosmetic,so grin and wear it!微笑是最好的化妆品,所以请尽情微笑吧!
6 strapped ec484d13545e19c0939d46e2d1eb24bc     
adj.用皮带捆住的,用皮带装饰的;身无分文的;缺钱;手头紧v.用皮带捆扎(strap的过去式和过去分词);用皮带抽打;包扎;给…打绷带
参考例句:
  • Make sure that the child is strapped tightly into the buggy. 一定要把孩子牢牢地拴在婴儿车上。 来自《简明英汉词典》
  • The soldiers' great coats were strapped on their packs. 战士们的厚大衣扎捆在背包上。 来自《简明英汉词典》
7 clot nWEyr     
n.凝块;v.使凝成块
参考例句:
  • Platelets are one of the components required to make blood clot.血小板是血液凝固的必须成分之一。
  • The patient's blood refused to clot.病人的血液无法凝结。
8 jersey Lp5zzo     
n.运动衫
参考例句:
  • He wears a cotton jersey when he plays football.他穿运动衫踢足球。
  • They were dressed alike in blue jersey and knickers.他们穿着一致,都是蓝色的运动衫和灯笼短裤。
9 joint m3lx4     
adj.联合的,共同的;n.关节,接合处;v.连接,贴合
参考例句:
  • I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤,肩膀脫臼了。
  • We wrote a letter in joint names.我们联名写了封信。
10 trauma TJIzJ     
n.外伤,精神创伤
参考例句:
  • Counselling is helping him work through this trauma.心理辅导正帮助他面对痛苦。
  • The phobia may have its root in a childhood trauma.恐惧症可能源于童年时期的创伤。
11 modifications aab0760046b3cea52940f1668245e65d     
n.缓和( modification的名词复数 );限制;更改;改变
参考例句:
  • The engine was pulled apart for modifications and then reassembled. 发动机被拆开改型,然后再组装起来。 来自《简明英汉词典》
  • The original plan had undergone fairly extensive modifications. 原计划已经作了相当大的修改。 来自《简明英汉词典》
12 replacement UVxxM     
n.取代,替换,交换;替代品,代用品
参考例句:
  • We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
  • They put all the students through the replacement examination.他们让所有的学生参加分班考试。
13 abdominal VIUya     
adj.腹(部)的,下腹的;n.腹肌
参考例句:
  • The abdominal aorta is normally smaller than the thoracic aorta.腹主动脉一般比胸主动脉小。
  • Abdominal tissues sometimes adhere after an operation.手术之后腹部有时会出现粘连。
14 nausea C5Dzz     
n.作呕,恶心;极端的憎恶(或厌恶)
参考例句:
  • Early pregnancy is often accompanied by nausea.怀孕期常有恶心的现象。
  • He experienced nausea after eating octopus.吃了章鱼后他感到恶心。
15 relatively bkqzS3     
adv.比较...地,相对地
参考例句:
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
16 onset bICxF     
n.进攻,袭击,开始,突然开始
参考例句:
  • The drug must be taken from the onset of the infection.这种药必须在感染的最初期就开始服用。
  • Our troops withstood the onset of the enemy.我们的部队抵挡住了敌人的进攻。
17 consistency IY2yT     
n.一贯性,前后一致,稳定性;(液体的)浓度
参考例句:
  • Your behaviour lacks consistency.你的行为缺乏一贯性。
  • We appreciate the consistency and stability in China and in Chinese politics.我们赞赏中国及其政策的连续性和稳定性。
18 joints d97dcffd67eca7255ca514e4084b746e     
接头( joint的名词复数 ); 关节; 公共场所(尤指价格低廉的饮食和娱乐场所) (非正式); 一块烤肉 (英式英语)
参考例句:
  • Expansion joints of various kinds are fitted on gas mains. 各种各样的伸缩接头被安装在煤气的总管道上了。
  • Expansion joints of various kinds are fitted on steam pipes. 各种各样的伸缩接头被安装在蒸气管道上了。
TAG标签: pain signal knee pulse
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