脉冲电磁场治疗轻度至中度膝关节骨关节炎:双盲,随机,安慰剂控制的临床试验
Kenney Ki Lee Lau1,2, Abbey Ssu Chi Chen1,2, Christine Hoi Yan Fu1,2
1Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China.
Journal of cachexia, sarcopenia and muscle
|January 26, 2026
概括
脉冲电磁场 (PEMF) 疗法在6个月后改善了膝关节骨关节炎 (OA) 患者的膝盖伸展强度. 然而,PEMF在这种轻度至中度的OA人群中没有显著影响膝盖曲,肌肉质量或关节结构.
科学领域:
- 生物医学工程 生物医学工程
- 整形外科 整形外科 整形外科
- 康复医学 康复医学 康复医学
背景情况:
- 膝关节骨关节炎 (OA) 治疗提供有限的功能益处,OA患者的肌肉软弱普遍存在,阻碍了运动.
- 脉冲电磁场 (PEMF) 疗法在肌肉和软骨健康方面显示出临床前的前景,但其在膝关节OA中的临床效果尚不清楚.
- 这项研究调查了PEMF对肌肉力量,质量,软骨,关节空间,身体功能以及耐火性轻度至中度膝关节OA患者报告的结果的影响.
研究的目的:
- 与安慰剂相比,评估PEMF治疗在改善膝关节肌肉力量,瘦肌量,软骨厚度,关节空间宽度,身体功能和患者报告结果方面的疗效.
- 评估PEMF治疗的长期影响,干预后长达12个月.
主要方法:
- 一个随机的,安慰剂对照试验,涉及60名患者 (≥50岁) 患有耐火性轻度至中度膝关节OA和疼痛评分≥4.4.
- 参与者接受了30分钟的PEMF或SHAM治疗,每周3次,持续8周.
- 评估结果包括肌肉强度,瘦肉量,软骨厚度,关节空间宽度,移动性和患者报告的结果在基线,干预后以及6个月和12个月后进行了评估.
主要成果:
- 在干预后6个月,PEMF治疗显著增加了与SHAM相比的膝盖延伸峰值扭矩 (p=0.042),延伸器强度增加了72%,而SHAM的强度增加了25% (p=0.003).
- 在PEMF组中也观察到膝盖曲器强度的显著增加 (72%与SHAM中的24%,p=0.022),尽管特此分析没有发现膝盖曲峰值扭矩在组之间存在显著差异.
- 在瘦肌量,软骨厚度,最小关节空间宽度,6分钟步行测试,椅子站测试或WOMAC分数方面,在PEMF和SHAM组之间没有发现显著差异.
结论:
- 8周的PEMF疗程在6个月内显著改善了耐火性轻度至中度膝关节OA患者的膝关节伸展强度,解决了伸展器的弱点.
- 在长达12个月的时间里,PEMF治疗没有显著提高膝盖屈曲强度,肌肉质量,软骨,关节空间,身体功能或患者报告的结果.
- 需要进一步的研究来优化PEMF治疗方案,以改善膝关节OA的结构和功能.
相关概念视频
Blind Procedures
13.4K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
13.4K
The Placebo Effect
6.8K
The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
6.8K
Electromagnetic Fields
2.8K
Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
However, the observation of...
2.8K
Clinical Trials
10.3K
Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
There are four phases in a clinical trial. A phase one...
There are four phases in a clinical trial. A phase one...
10.3K
Clinical Trials: Overview
4.9K
Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
4.9K
The Electromagnetic Spectrum
65.1K
The electromagnetic spectrum consists of all the types of electromagnetic radiation arranged according to their frequency and wavelength. Each of the various colors of visible light has specific frequencies and wavelengths associated with them, and you can see that visible light makes up only a small portion of the electromagnetic spectrum. Because the technologies developed to work in various parts of the electromagnetic spectrum are different, for reasons of convenience and historical...
65.1K


