Proposing 6 dimensions within the construct of movement in the movement continuum theory

Abstract

Background and Purpose: The Movement Continuum Theory (MCT) provides a potential basis for movement assessment and intervention, but "movement" lacks specificity. The purposes of this study were to propose and evaluate a subdivision of movement into multiple dimensions. Subjects: A convenience sample of 318 adults completed a 24-item self-report measure of movement ability. Methods: A multimethod approach was used to identify, operationalize, and test a multidimensional model of movement. Data analysis included a comparison of the fit of unidimensional and multidimensional models using item response theory methods and inspection of response patterns. Results: A model specifying 6 dimensions - flexibility, strength, accuracy, speed, adaptability, and endurance - fit respondent data significantly better than the unidimensional model, even with high pair-wise correlations between dimensions. Response patterns showed large differences rather than uniform scores across dimensions for over half of the respondents. Discussion and Conclusion: Subdividing movement into the proposed dimensions fits the data and potentially strengthens the usefulness of the MCT as a theoretical foundation for managing movement effectively. © 2007 American Physical Therapy Association.