Effectiveness of a Wii Fit based exercise program in the management of chronic low back pain: a randomized clinical trial.

INTERVENTION: We'll suggest two different exercise programs to the treatment of low back pain. Wii fit program is based in some Wii Fit games such as warrior pose, ski slalom or single leg lift. To play this games you need to do some movements like flexion, extension and stretching of the low back muscles. 2 individual sessions per week will be made with a duration of 20 minutes, for 4 weeks. Sessions are conducted by a qualified physiotherapist. The program will be done at the hospital, so we can monitor adherence and also we can control that the exercises are done correctly. CONDITION: low back pain PRIMARY OUTCOME: Function, assessed using Roland‐Morris Dissability Questionnarie (RMDQ) We will use the validated to spanish version Pain, assessed by 100mm visual analogue scale (VAS) SECONDARY OUTCOME: Global perceived effect of treatment, assessed using an 11‐ point scale that ranged from ‐5 (vastly worse) through 0 ; (no change) to +5 (completely recovered) ; Kinesophobia, assessed using Tampa Scale of Kinesophobia (TSK‐11 validated to the spanish version) Pain pressure threshold, assessed using a mechanical algometer INCLUSION CRITERIA: ‐ Non‐specific low back pain diagnosis ‐ Low back pain for at least 3 months ‐ Give written informed voluntary consent