Methods: Randomized clinical trial with a sample of 122 subjects of the community of both sex, with ages between 30 to 55, with low back pain complain. These subjects will accomplish during 12 weeks protocol of exercises from "Exercises to low back pain" Physiatry and Rehabilitation service from HCPA, randomized in two groups: group 1 will complete all the protocol of exercises with orientation and attendance directly from a professional of physical education, in the Service of Physiatry and Rehabilitation in HCPA. Group 2 will complete one session of the protocol of exercises with orientation and attendance directly from a professional of Physical Education, in the service of Physiatry and Rehabilitation of HCPA, to clarify any doubts about the protocol. The further sessions will be completed at home, along weekly monitoring of the researchers through phone calls, the patients of this group will receive a manual with the sequence of the exercises.