Eficácia da liberação do músculo iliopsoas sobre os parâmetros respiratórios em pacientes com dor lombar crônica: um protocolo de ensaio clínico controlado randomizado único cego, dois grupos, pré-teste/pós-teste

BACKGROUND AND PURPOSE: Iliopsoas and diaphragm muscle shares common attachment at L2 vertebrae, iliopsoas tightness may lead to reduce diaphragm excursion leading to breathing difficulty. Therefore, the present controlled trial will provide evidence on effect of the iliopsoas muscle release in upgrading respiratory efficiency in patients with chronic low back pain. METHOD/DESIGN: -   A total of thirty-four participants with mechanical chronic low back pain due to hip flexor tightness and having breathing difficulty will be recruited on the basis of selection criteria and will be randomly allocated into two groups, Group A (conservative treatment + iliopsoas myofascial release), Group B (conservative treatment + sham treatment).  Both the group will receive the intervention  thrice a week for 3 weeks. The outcome measures will be Roland Morris Disability Questionnaire, Numeric Pain Rating Scale, Diffusing Capacity of Lung for Carbon monoxide will be used as outcome measures. DISCUSSION: This trial will help to identify the effectiveness of iliopsoas release in low back pain and its effect on respiratory parameters. TRIAL REGISTRATION: This trial has been prospectively registered at cliniclatrials.gov (CTRI/2020/04/024661) on 16 April 2020.