diagnosis or under diagnostic investigation of low back pain from secondary causes (spondyloarthopathy, infection, neoplasm, complete sciatica),

fibromyalgia,

previous spinal surgery,

litigation (patients on leave from work or in work leave processes due to low back pain);

having changed physical activity in previous three months;

body mass index (BMI) higher than 30;

acupuncture treatment or physiotherapy in the previous three months

Abdominal Belt Use to Treat Low Back Pain