Towards a physically more active lifestyle based on one's own values: the results of a randomized controlled trial among physically inactive adults.

Background: The high prevalence of physical inactivity has led to a search for novel and feasible interventions that will enhance physical activity, especially among the least physically active individuals. This randomized controlled trial aimed to determine the effectiveness of a value-based intervention to promote a physically more active lifestyle among physically inactive adults. The framework of the study was based on Acceptance and Commitment Therapy (ACT).

Towards a physically more active lifestyle based on one's own values: study design of a randomized controlled trial for physically inactive adults.

Background: This randomised controlled trial demonstrates the effectiveness of a value-based intervention program to encourage a physically more active lifestyle among physically inactive adults aged 30 to 50 years. The conceptual framework of the program is based on an innovative behavioural therapy called Acceptance and Commitment Therapy (ACT) that aims to increase an individual's psychological flexibility and support behaviour change towards a higher quality and more meaningful life.

Methods: Participants will be randomly allocated to a feedback group (FB) or an Acceptance and Commitment based (ACT+FB) group.