Background: Self-report questionnaires play an important role as outcome measures in shoulder research. Having an estimate of the measurement error of these ...
Background Novel treatment interventions are advancing rapidly in the management of hip and groin disability in the physically active young to middle-aged population. Objective To recommend the most ...
Despite extensive use over 40 years, physical activity questionnaires still show limited reliability and validity. Measurements have value in indicating conditions where an increase in physical ...
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