The effectiveness of manual therapy and neuromuscular bandage in the treatment of mechanical low back pain

INTERVENTION: The treatments will be carry out during 2 sessions a week/ 3 weeks and there will be 1 check‐up 1 month after the last session (total duration of the study: 7 weeks). To develop this study 2 professional will be needed (both professionals are physiotherapists): ‐ The first professional (P1) will do the selection the sample and the evaluation. ‐ The second professional (P2) will do the randomisation into 2 groups and the treatment. The treatments will be: Each patient will be randomly assigned one of two treatments. Both groups will receive the same Manual Therapy Program by the second professional (physiotherapist with more than 5 years experience). The Manual Therapy Program has duration of 30 minutes. ‐ Passive mobilizations: 2 sets of 10 flexion mobilizations, 10 extensions, 10 abductions, 10 adductions, 10 internal rotations and 10 external rotations. ‐ Massage with movement: massage at muscles of low back pain from craneal to caudal while the patient makes an active anterior flexion (3 times). ‐ Passive stretching: physiotherapist takes both patient´s legs and she does a flexion in order to approximate the knees of the patient to his breast (3 times of 1 minute). ‐ Pressure release: at myofascial trigger points of quadratus lumborum (3 cycles each point with a maximum of three). Active exercises: patient lies in a pad with knees´s flexion. 10minutes. ‐ Patients make little steps from right to left (lateroflexion). 1 set of 10 times. ‐ Patients drop his legs to both sides (rotation). 1 set of 10 times. Active exercises: patient in cuadrupedia.5 minutes. ‐ Cat‐horse: take the whole column to flexion and extension respectively. 1 set of 10 times. All exercises have a comfortable intensity without pain, just muscular tension. The difference between groups will be that one of them will additionally receive a neuromuscular bandage at the end of the session (after the treatment and the exercises). . Neuromuscular bandage will be placed by a physiotherapist at paraspinal low back muscles: 2 vertical strips without tension and one transversal strip with 50% of tension. Patients have to make an active anterior flexion to place it and thy have to keep it during 4 days. CONDITION: Low back pain PRIMARY OUTCOME: Pain will be assessed with a numeric pain scale. Range of motion will be assessed with a goniometer. SECONDARY OUTCOME: Function will be assessed with an Oswestry questionnaire. INCLUSION CRITERIA: 1. Age from 18 to 67 years old. 2. Having low back pain at the beginning of the study with a minimum duration of 7 days.