Please select the eligibility criteria that correspond to the clinical trial below.
Title: N/A
Brief Summary: Rheumatologists are discussing, whether rehabilitation of patients with low back pain (LBP) can be improved. At present patients with LBP start treatment as soon as possible, this also applies for patients with chronic low back pain (CLBP) - pain lasting over 12 weeks. At Glostrup University Hospital department of Physical Medicine/rheumatology we use a method (method A) where an interdisciplinary team gives the patients a treatment composed of various topics. This includes among other things education, physical team training, exercises in swimming pool, stretching exercises, and occupational therapy. A different method (method B) originates from the Rehabilitation centre in Karlslunde led by Teddy Oefeldt. Here they focus strictly on dynamic training of muscles in the back and the buttocks. A therapist, who in the beginning partly carries the patient through the exercises, assists this training.

In both methods, individually considerations are taken, but to a greater extend in method B. The treatment will extend over a three months period.

A few earlier investigations have compared these two methods, but they have not been systematized to such a degree, that they gave any final conclusions. Therefore, we initialized an investigation including a larger number of patients, where the two methods are compared from the results the patients achieve after 3, 6, 12 and 24 months.

286 consecutive patients were included and randomized to one of the two methods. Those, who did not wish to participate in the investigation, were treated according to the department's normal procedure (Method A)


Options:
A: 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;
B: Inclusion Criteria:

* low back pain over 3 month
* the pain must originate locally from the lowe back and be nociceptive

Exclusion Criteria:

-
C: Inclusion Criteria:

1. Low Back Pain lasting more than 12 weeks with or with out pain radiating into the leg(s)
2. Age 18 - 60 years

Exclusion Criteria:

1. Serious spinal pathology

   1. Malignancy
   2. Osteoporosis,
   3. Fresh vertebral fracture
   4. Newly operation on the back
   5. Stenosis of the lumbar spine
   6. Unstable spondylolistesis
   7. Infections in the back
2. Neurological dysfunction of the thoracic or abdominal muscles
3. Pregnancy/breastfeeding
4. Mental illness
5. Health conditions which prohibit intensive training.
6. Languish problems/ dyslexia
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: C