Juliet Corbin and Anselm Strauss
- Trajectory Model is a nursing model particularly applicable in
situations of people with chronical diseases developed by Anselm
L. Straus, medical sociologist and Juliet Corbin, a nurse
- This model is also called “Corbin-Strauss-Model” and is
recognised as a middlerange explanatory nursing theory (Corbin
& Straus, 1991)
- This model was developed following over 30 years of
interdisciplinary research on a variety of chronic illnesses.
- -“a course of illness over time plus the actions taken by
families and health professionals to manage or shape the
- The term “trajectory” refers to the course of a chronical
disease in its different stages and phases.
- Chronical illnesses are serious diseases
which could last the whole life of the concerned person
affecting the person’s mental, emotional and social well-being.
McCorkle & Pasacreta, 2001- explains eight phases of
chronic illness trajectory
- Initial or pretrajectory phase - occurs before any signs and
symptoms are present.
- Trajectory onset phase- occurs with the first onset of signs
and symptoms and includes the diagnostic period.
- The crisis phase -is when a potentially life-threatening
- The acute phase- follows the crisis phase and refers to the
period when the patient's symptoms can be controlled by a
- Stable phase - this phase starts once symptoms are controlled.
- Unstable phase - when the patient's symptoms are uncontrolled
by the previously adopted regimen
- Downward phase - characterized by progressive deterioration in
mental and physical status
- Dying phase - refers to a period of weeks, days, or hours
preceding death .
The Corbin and Strauss Chronic Illness Trajectory
Framework consists of six steps:
- Identifying the trajectory phase.
- Identifying problems and establishing goals.
- Establishing plans to meet goals.
- Identifying factors that facilitate or hinder attainment of
- Implementing interventions.
- Evaluating the effectiveness of interventions.
- Trajectory model can be used as a management instrument for
the professional care.
- It helps the nursing person to get familiar with the
- Trajectory model has been applied in conditions like cancer,
cardiovascular diseases, HIV, Aids, diabetes mellitus and
- Corbin J., and Strauss A. A Nursing Model for Chronic Illness
Management Based upon the Trajectory framework. Scholarly
Inquiry for Nursing Practice, 1991, 5, 155-174.
- Smeltzer SC. Use of the Trajectory Model of nursing in
multiple sclerosi. Sch Inq Nurs Pract. 1991
- McCorkle R, Pasacreta JV. Enhancing caregiver outcomes in
palliative care. Cancer Control. 2001 Jan-Feb;8(1):36-45.
Available at http://www.moffitt.org/CCJRoot/v8n1/pdf/36.pdf
. Accessed on 31/1/2011.
- Kabinga M, Banda SS. A Conceptual Review of the Demands of
chronic care and the Preparedness of Nurses Trained with the
General Nursing Council of Zambia Curriculum. Medical Journal of
This page was last updated on: 05/12/2020