Prevalence of positive modified scapular assistance test in patients with shoulder pain with and without scapular dyskinesis: a cross-sectional study.

Background: Scapular dyskinesis (SD) is defined as an altered position of the scapula or altered motion patterns and their relationship with shoulder pain (SP) is still under debate. The modified scapular assistance test (mSAT) modifies scapular kinematics and is used to determine the impact of scapular dyskinesis in shoulder pain. However, data about the relationship between SD and the result of mSAT is scarce.

Standard measurement error and minimal detectable change of the Back-PAQ ArgSpan questionnaire: Secondary analysis.

Background: Negative attitudes and beliefs about back pain in patients with low back pain (LBP) are associated with high levels of pain and negatively influence clinical outcome. The Back Pain Attitudes Questionnaire (Back-PAQ) was developed to assess back beliefs of patients and healthcare professionals. The minimal detectable change (MDC) is defined as the smallest amount of change that can be detected not due to inherent variation or "noise" in the measure.

Spanish translation, cross-cultural adaptation and validation of the Argentine version of the Back Pain Attitudes Questionnaire.

Background: low back pain (LBP) is the main cause of years lived with disability worldwide. Psychosocial factors have been shown to be good predictors of persistent LBP. Within these, unhelpful beliefs about the back seem to be important in the development and chronicity of the symptoms.