An experimental parallel group study was designed. It was a single-blind (assessor) randomized controlled clinical trial. Patients from FREMAP - Mutual Insurance Company for Occupational Accidents and Diseases - participated in the study from January 2010 to December 2010. A total of 71 patients were asked to participate in the initial screening, but 8 did not meet inclusion criteria, 2 declined to participate in the study for personal reasons, and 2 could not participate for other reasons. 59 patients with NP were randomly distributed into two groups according to two therapeutic intervention programs. Group I (n=29; 18 females/11 males; mean age: 38.24 ± 11.35 years-old) was treated with MT and Group II (n=30; 15 females/15 males; mean age: 38.20 ± 10.70 years-old) was treated with MRT.