Systematic adaptation of an evidence-based, computer-tailored physical activity intervention for cancer patients using Intervention Mapping

Abstract

Background: Despite positive effects of physical activity (PA) for colorectal and prostate cancer patients, most do not meet PA-guidelines and report a need for information and counseling. An evidence-based computer-tailored PA intervention for older adults is systematically adapted to fit the patients' needs. Methods: Adaptations were made using Intervention Mapping, a protocol for developing and adapting evidence-based programs. Interviews with patients (N=29) and cancer professionals (N=15), a pretest of new materials (29 patients, 10 professionals) and a small-scale pilot (N=18) were conducted. Findings: Interviews provided input for change objectives, intervention methods, program components and delivery channel. New materials were valued 5.6 to 7.7 (scale 1-10). Professionals reviewed the advice safe and feasible. Materials were further adapted according to patients’ and professionals’ suggestions. Pilot participants increased their PA days from 4.1 to 5.6 (p=.018) and appreciated OncoActive+ with an 8.6 (SD=.924). Discussion: The systematic adaptation of an evidence-based intervention, with involvement of patients and professionals, resulted in a suitable intervention for the new population. Currently, a randomized-controlled effectiveness trial is conducted.