Randomized Controlled Trial
A study in which the participants are divided by chance into separate groups that compare different treatments or other interventions. Using chance to divide people into groups means that the groups will be similar and that the effects of the treatments they receive can be compared more fairly. At the time of the trial, it is not known which treatment is best. A Randomized Controlled Trial or (RCT) design randomly assigns participants into an experimental group or a control group. As the study is conducted, the only expected difference from the control and experimental groups in a randomized controlled trial (RCT) is the outcome variable being studied.
- Easier to blind/mask than from observational studies
- Good randomization which washes out any population bias
- Populations of participating individuals are clearly identified
- Results can be analyzed with well known statistical tools
- Does not reveal causation
- Expensive in time and money
- Loss to follow-up attributed to treatment
- Volunteer biases: the population that participates may not be representative of the whole
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One of the most prevalent causes of lower back pain and sciatica may be due to the compression of the nerve roots in the low back from a lumbar herniated disc, or a ruptured disc in the lumbar spine. Common symptoms of lumbar herniated discs include varying intensities of pain, muscle spasms or cramping, sciatica and leg weakness as well as loss of proper leg function. While these may not appear to be closely associated with each other, a lumbar herniated disc may also affect the cervical spine, manifesting symptoms of migraine and headache. The purpose of the following articles is to educate patients and demonstrate the relation between migraine pain and lumbar herniated disc, further discussing the treatment of these two common conditions.
A Critical Review of Manual Therapy Use for Headache Disorders: Prevalence, Profiles, Motivations, Communication and Self-Reported Effectiveness
Despite the expa
Migraine is a debilitating condition characterized by a headache of varying intensity, often accompanied by nausea and sensitivity to light and sound. While researchers today still don’t understand the true reason behind this primary headache disorder, many healthcare professionals believe a misalignment of the cervical spine can lead to migraine. However, new evidence-based research studies have determined that cervical disc herniation, a health issue associated with the intervertebral discs of the upper spine, may also cause head pain. The purpose of the following article is to educate patients and help them understand the source of their symptoms as well as to demonstrate several types of treatment effective for migraine and cervical disc herniation.
Manual Therapies for Primary Chronic Headaches: a Systematic Review of Randomized Controlled Trials
This is to our knowledge the first systematic review regardin