Intraexaminer and interexaminer reliability of pressure biofeedback unit for assessing lumbopelvic stability during 6 lower limb movement tests.

Objective: The purpose of this study was to assess examiners' intrarater and interrater reliability to use a pressure biofeedback unit (PBU) during 6 lower limb movement tests based on Movement System Impairment classification model for low back pain (LBP) in people with nonspecific LBP.

Methods: Thirty subjects (13 men and 17 women) with chronic nonspecific LPB were assessed during 6 lower limb movement tests based on Movement System Impairment classification using a PBU. Each test was performed twice by 2 assessors with a 48-hour interval between test sessions.

The Brazilian-Portuguese versions of the McGill Pain Questionnaire were reproducible, valid, and responsive in patients with musculoskeletal pain.

Objective: To cross-culturally adapt the Short Form of the McGill Pain Questionnaire (SF-MPQ) into Brazilian-Portuguese and test the clinimetric properties of the newly developed SF-MPQ and the previously cross-culturally adapted Brazilian-Portuguese Long Form of the McGill Pain Questionnaire (LF-MPQ).

Study Design And Setting: The SF-MPQ was translated and adapted into Brazilian-Portuguese following recommendations from current guidelines. Both SF-MPQ and LF-MPQ were administered in a prospective longitudinal design to 203 patients with a range of musculoskeletal conditions to evaluate their clinimetric properties.