Conclusion
In ambulatory cardiology patients who are smartphone users,
a novel mHealth intervention coupling smart texts to digital
tracking significantly increased near-term physical activity.
The effect was dependent on the text message component of
the intervention. This pilot trial gives insight into the efficacy
and feasibility of components of the mHealth intervention and
provides an initial step forward in a rapidly growing area in
critical need of high-quality clinical evidence. Ultimately,
therapeutic implications await larger, multicenter, definitive
pivotal trials involving more-diverse groups of patients