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Sufficient physical activity can prolong the ability of older adults to live independently. Community-based exercise programs can be enhanced by regularly performing exercises at home. To support such a home-based exercise program, a blended intervention was developed that combined the use of a tablet application with a personal coach. The purpose of the current study was to explore to which extent tablet engagement predicted exercise adherence and physical activity. The results show that older adults (n = 133; M = 71 years of age) that participated 6 months in a randomized controlled trial, performed at average 12 home-based exercised per week and exercised on average 3 days per week, thereby meeting WHO guidelines. They used the tablet app on average 7 times per week. Multiple linear regressions revealed that the use of the app predicted the number of exercises that were performed and the number of exercise days. We conclude that engagement with a tablet can contribute to sustained exercise behavior.

Persuasive Technologies can cause behavior change for improving child health care. However, for persuasive technology to be effective, users have to accept it. We propose a model of determinants of users’ acceptance of persuasive technologies that contains five constructs from the Unified Theory of Acceptance and Use of Technology (UTAUT), which were used as latent variables determining users’ acceptance to use a persuasive intervention for child healthcare. A structured questionnaire was validated and completed by 133 participants to assess their perceptions. Results indicate that Perceived Usefulness, Content of Intervention and Perceived Credibility can have a significant influence on Intention to Use the Intervention. The result support our proposed model of determinants of acceptance of persuasive technology. The most important conclusion of this model is that when users perceive an intervention as being credible and useful, they are most motivated to accept and adopt it.