Please select the eligibility criteria that correspond to the clinical trial below.
Title: Manipulation, Exercise, and Self-Care for Low Back Pain
Brief Summary: The broad, long term objective of this interdisciplinary research is to identify effective therapies for low back pain sufferers and to increase our understanding of this important condition. The primary aim is to examine the relative efficacy of chiropractic spinal manipulation, rehabilitative exercise, and self-care education in terms of patient-rated outcomes in the short and long term for non-acute low back pain.


Options:
A: Inclusion Criteria: patients are 18-65 years of age; Québec task force classification 1,2,3 and 4 (this includes patients with back pain, stiffness or tenderness, with or without musculoskeletal signs and neurological signs); primary complaint of back pain, with current episode greater than or equal to six weeks duration(this includes subacute and chronic patients for whom the study treatments are an option)

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Exclusion Criteria:

* previous lumbar spine surgery; back pain referred from local joint lesions of the lower extremities or from visceral diseases; progressive neurological deficits due to nerve root or spinal cord compression; aortic and peripheral vascular disease; existing cardiac disease requiring medical treatment; blood clotting disorders; diffuse idiopathic hyperostosis; infectious and noninfectious inflammatory or destructive tissue changes of the lumbar spine; presence of significant infectious disease, or other severe debilitating health problems; substance abuse; ongoing treatment for back pain by other health care providers; pregnant or nursing women; pain score of less than 30 percentage points; pending our current litigation
B: Inclusion Criteria:

* Patients with non-specific chronic low back pain for at least three months, age between 18 and 65 year of both genders and with a minimum pain intensity score of three in the 11-point Pain Numerical Rating Scale (ranging from 0 to 10 points).

Exclusion Criteria:

* Known or suspected serious spinal pathology (fractures, tumors, inflammatory or infective diseases of the spine);

  * Nerve root compromise;
  * Comorbid health conditions that would prevent active participation in the exercise programs;
  * Pregnancy;
  * Cardio Respiratory illnesses;
C: Inclusion Criteria:

* Unspecific subacute, subacute remitting and chronic LBP
* Both sexes, 20-60 yrs of age
* LBP between 2-8 on a 11-pt numeric rating scale

Exclusion Criteria:

* Previous back surgery
* Sick listed more than one year
* Radiating pain below knee or motor deficits
* Systemic diseases and "red flags"
* Diagnosed psychiatric disease
* Ingoing insurance claim
* Pregnancy
D: Inclusion Criteria:

* Ages 18 - 35 years old (or emancipated minor)
* Participating in 91 W (combat medic) MOS training
* English speaking and reading

Exclusion Criteria:

* Currently seeking medical care for LBP
* Previous medical history that includes any surgery for LBP (examples include but are not limited to lumbar fusion, lumbar decompression, and lumbar discectomy)
* History of degenerative joint disease, arthritis, spine trauma or vertebral fractures, spondylolisthesis, and congenital spine disorders
* Currently unable to participate in AIT due to injury in foot, ankle, knee, hip, neck, shoulder, elbow, wrist, or hand injury.
* History of fracture (stress or traumatic) in proximal femur and/or pelvis
* Pregnancy (Note: Pregnancy will not result in termination from the study, even though it is an exclusion criteria at enrollment.)

Answer: A