ICT健康介入に対応したTranstheoretical Model尺度の開発とその評価

抄録

With the global increase of lifestyle-related diseases, health intervention using information and communication technology (ICT) has attracted attention as an effective approach to getting people to change their health behavior and to engage in physical activity. The transtheoretical model (TTM) is mainly applied to the development of the health intervention system as a behavior change theory in the United States and Europe. However, the existing transtheoretical model scales to measure people’s behavior change in Japan are designed for a face-to-face intervention and are not applicable to the intervention using ICT. We have developed new TTM scales for ICT intervention through the Internet survey of 4,400 randomly selected people. As a result of stepwise exploratory factor analysis, one factor self-efficacy scale with 5 items, two factors decisional balance scale with 10 items and one factor process of change scale with 10 items were developed. Statistical procedure showed that these scales had reliability and validity. Practical effectiveness was verified through an actual 3 month health intervention using “Happy Walking”, a walking support system. The results supported the validity of these ICT scales.