Effect of Ultrasound and Laser in Chronic Low Back Pain: Randomized Double-blinded Controled Trial

Effect of Laser and Ultrasound in Pain and Disability in Women With Chronic Non-specific Low Back Pain: Randomized Double-blinded Controled Trial

The low level laser therapy has a better effect in decrease the pain than ultrasound therapeutic.

The laser will be applied with the dosimetry 3 J/cm², 2 minutes in 6 points around the back spine, during 4 weeks. Before the women will be evaluate again.

Inclusion Criteria:

• chronic low back pain
• 3,0 - 7,0 in the visual analogic scale

Exclusion Criteria:

• no use of medications
• no other treatment
• without fractures, pregnancy, psychiatric or neurologic disorders, diabetes, amputations
• with diagnostic of low back pain