Evaluation of two different web-based interventions for chronic cancer-related fatigue: online mindfulness-based cognitive therapy and ambulant activity feedback

About a quarter of cancer survivors suffer from chronic cancer-related fatigue (CCRF). CCRF has a considerable impact on a patient's life because it hinders in daily life activities and causes distress. To improve the quality and accessibility of interventions for CCRF, this dissertation comprises the evaluation of two different Web-based interventions for reducing CCRF: a physiotherapist guided ambulant activity feedback (AAF) therapy encompassing the use of an accelerometer, and a psychologist guided online mindfulness-based cognitive therapy (eMBCT). The following topics will be addressed: 1. The effectiveness of these interventions compared to an unguided active control condition receiving psycho-educational e-mails; 2. Specific and generic predictors and working mechanisms of these interventions; 3. Patient experiences with following these interventions. This project is called 'Fitter na kanker', and concerns applied research initiated by two research departments in clinical psycho-oncology practice centers in the Netherlands: the Helen Downing Instituut (www.hdi.nl) and Roessingh Research and Development (www.rrd.nl)