Factors Influencing Patients' Intention to Perform Physical Activity During Hematopoietic Cell Transplantation.

OBJECTIVES: To examine theoretical and medical variables influencing a patient's intention to perform physical activity during hospitalization for hematopoietic cell transplantation (HCT). SAMPLE & SETTING: 54 patients undergoing HCT at the Seidman Cancer Center in Cleveland, Ohio. METHODS & VARIABLES: A longitudinal, prospective cohort design was used. Instruments included the Self-Report Habit Index, tailored to assess exercise habit, the Memorial Symptom Assessment Scale-Short Form, and an investigator-constructed survey of intention, attitude, control, and subjective norm toward physical activity. Descriptive statistics, univariate logistic regression, and linear regression were used. RESULTS: Intention for physical activity remained high at all time points. Previous exercise habits were not related to intention. Inverse relationships between symptom distress and the theoretical constructs that influence intention occurred at the critical time points of nadir and discharge during transplantation. IMPLICATIONS FOR NURSING: Nurses should reinforce physical activity regardless of exercise habits. Symptom distress may influence physical activity differently during the transplantation trajectory.