Increasing physical activity in older adults using STARFISH, an interactive smartphone application (app); a pilot study.BACKGROUND
 We have developed STARFISH, a smartphone application, to increase physical activity.  This paper describes the features of STARFISH, presents the views of older users on the acceptability and usability of the app and reports the results of a six week pilot study of the STARFISH app in older adults.


 The operationalisation of the behaviour change techniques (BCTs) within the STARFISH app was mapped against the BCT Taxonomy of Michie et al.  Participants were very positive about using the STARFISH app, in particular the embedded BCTs of self-monitoring, feedback and social support (in the form of group rewards).  The STARFISH app was acceptable and straightforward to use for older adults.  STARFISH has potential to increase physical activity in older adults; however, a fully powered randomised controlled trial is required.
STARFISH
The operationalisation of the behaviour change techniques (BCTs) within the STARFISH app was mapped against the BCT Taxonomy of Michie et al. 
the BCT Taxonomy of Michie et al.