Inclusion criteria:
Inclusion criteria: Nonspecific LBP for a period of at least 3 months; women aged over 18 and less than 55 years old; no history of musculoskeletal disorders in hip and lower extremities; no history of radicular pain, spinal stenosis, any neurologic sign, systemic infection, cardiovascular and balance disorders, severe deformity of musculoskeletal injury to the leg or medication one week before the test session; not pregnant; no history of diabetes, respiratory disorders, spinal surgery, nerve root pain, severe spinal deformity or disease; no history of metabolic, systemic, inflammatory diseases, arthritis and malignancies.
Exclusion criteria:
Patients who were absent more than three consecutive sessions of treatment; patients who doing exercises aggravated their pain; receiving or doing other therapies during the study.