Validation, Reliability, and Responsiveness Outcomes Of Kinematic Assessment With An RGBD Camera To Analyze Movement In Subacute And Chronic Low Back Pain Background: The RGBD camera is an alternative to asses kinematics in order to obtain objective measurements of functional limitations. The aim of this study is to analyze the validity, reliability, and responsiveness of the motion capture depth camera in subacute and chronic low back pain patients. Methods: Thirty subjects (18xe2x80x9365 years) with nonspecific lumbar pain were screened 6 weeks following an episode. RGBD camera measurements were compared with an inertial measurement unit. Functional tests included climbing stairs, bending, reaching sock, lietosit, sittostand, and timed upandgo. Subjects performed the maximum number of repetitions during 30 s. Validity was analyzed using Spearmanxe2x80x99s correlation, reliability of repetitions was calculated by the intraclass correlation coefficient and the standard error of measurement, and receiver operating characteristic curves were calculated to assess the responsiveness. Results: The kinematic analysis obtained variable results according to the test. The time variable had good values in the validity and reliability of all tests (r  0.93xe2x80x931.00, (intraclass correlation coefficient (ICC)  0.62xe2x80x930.93). Regarding kinematics, the best results were obtained in bending test, sock test, and sittostand test (r  0.53xe2x80x930.80, ICC  0.64xe2x80x930.83, area under the curve (AUC)  0.55xe2x80x9384). Conclusion: Functional tasks, such as bending, sittostand, reaching, and putting on sock, assessed with the RGBD camera, revealed acceptable validity, reliability, and responsiveness in the assessment of patients with low back pain (LBP). Trial registration: ClinicalTrials.gov NCT03293095 xe2x80x9cFunctional Task Kinematic in Musculoskeletal Pathologyxe2x80x9d September 26, 2017

Functional Evaluation Using Inertial Measurement of Back School Therapy in Lower Back Pain Lower back pain is an extremely common health problem and globally causes more disability than any other condition. Among other rehabilitation approaches, back schools are interventions comprising both an educational component and exercises. Normally, the main outcome evaluated is pain reduction. The aim of this study was to evaluate not only the efficacy of back school therapy in reducing pain, but also the functional improvement. Patients with lower back pain were clinically and functionally evaluated; in particular, the timed xe2x80x9cup and goxe2x80x9d test with inertial movement sensor was studied before and after back school therapy. Fortyfour patients completed the program, and the results showed not only a reduction of pain, but also an improvement in several parameters of the timed up and go test, especially in temporal parameters (namely duration and velocity). The application of the inertial sensor measurement in evaluating functional aspects seems to be useful and promising in assessing the aspects that are not strictly correlated to the specific pathology, as well as in rehabilitation management.