Comparing the Reciprocal Inhibition Method and Post-isometric Inhibition Method of Muscle Energy Technique on the Spinal Reflex Excitability in Healthy Subjects
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- Change in H Reflex Amplitude
研究概览
简要总结
This a cross-over study to compare the effect of two different muscle energy techniques (MET) including post-isometric inhibition and reciprocal inhibition on the spinal reflex excitability. The study contains two experimental groups, while one group will receive post-isometric inhibition MET in the first stage and reciprocal inhibition MET in the second stage, the other group will receive reciprocal inhibition MET in the first stage and post-isometric inhibition MET in the second stage.
详细描述
Reciprocal inhibition MET works based on the two mechanisms a) voluntary activation of agonist muscle that is simultaneously accompanied by the inhibition of the antagonist muscles or b) the activation of muscle spindle which causes a reflexive contraction in the agonist muscle (known as the stretch reflex) and relaxation of the antagonist muscles. By using this method, the activation of agonist muscles may inhibit or deactivate the antagonist muscles which may permit the therapist to introduce further ROM to the affected joint.
The other method of MET is post-isometric relaxation which works based on the two mechanisms including; 1) activation of Golgi Tendon Organs (GTO) that located between the muscle belly and its tendon and 2) presetting muscle spindles by muscle contraction witch project information to the spinal cord via afferent type II fibers and through a complex central control systems, the spindle is preset to adjust the tone of the muscle. It seems that moderate isometric contraction of muscle may preset the muscle spindle and cause a post-isometric relaxation within the agonist muscles which now can be stretched further, and this may permit the therapist to introduce further ROM to the affected joint and help to improve joint mobilization.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 30 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •without current low back pain
排除标准
- •Suffering from pain in the cervical, thoracic and lumbar spine,
- •Presenting signs of radiculopathy or peripheral neuropathy such as specific patterns of numbness and muscle weakness,
- •Any history or signs of joint instability, healing fractures, malignancy, open wounds, sutures, severe rheumatoid arthritis.
结局指标
主要结局
Change in H Reflex Amplitude
时间窗: First measurement (Base-line), second measurement after 30 minutes (Pre-test), third measurement after 20 minutes (first post-test), forth measurement after 20 minutes (second post-test)
H reflex or Hoffman's reflex is a refectory reaction of muscles after electrical stimulation of sensory fibers (Ia afferent from muscle spindles) in their innervated nerves (here is Tibial N),
Change in M wave Amplitude
时间窗: First measurement (Base-line), second measurement after 30 minutes (Pre-test), third measurement after 20 minutes (first post-test), forth measurement after 20 minutes (second post-test)
M- wave is a compound muscle action potential, which is produce by the electrical stimulation of motor nerve fibers (here is Tibial N)
次要结局
未报告次要终点
研究者
Mohammad(Reza) Nourbakhsh
Professor of Physical Therapy
University of North Georgia