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The growing emphasis on health promotion by society and the increasing utilization of Orem's general theory of nursing to guide practice, education and research create a need to clarify health promotion activity within the model. The concept of health promotion self-care is developed after an analysis of statements by Pender and Orem for their logical congruence. Further in-depth analysis of Orem's model facilitates the placement of the new concept within its current structure. The potential strength of the model for guiding health promotion practice is discussed, as well as areas for needed development.

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This article traces the interactive process between theory and research as it has been used to clarify the concept of self-care agency, a key concept in Orem's model of nursing. Theoretical constructions of self-care agency that have emerged in the work of Orem and the Nursing Development Conference Group are reviewed. Operational measures of self-care agency are described, particularly with regard to their underlying theoretical formulations. Factorial structures for some self-care agency instruments are related to the components of self-care agency in Orem's most recent conceptualization. Dimensions of self-care agency that are consistently supported by research studies of this phenomenon are identified.