A tailored digital program increased activity in Latina teens
Adding personalized web content, texts and social media to a fitness tracker produced greater activity gains than a tracker alone.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The group receiving tailored digital support increased its measured weekly activity more than the group given only a fitness tracker. Self-reported activity and step counts also favored the added program. These results support an effect on physical activity during the trial in underactive Latina teens, without showing whether the changes lasted beyond follow-up.
This abstract-based summary cannot establish how lasting the gains were. Because the program combined several components, the reported results do not isolate the contribution of websites, texts or social media.
What researchers found
Weekly moderate-to-vigorous activity
ActiGraph medians at 6 months: multimedia plus tracker versus tracker alone. IQRs (middle half of values): 19–72 versus 7–76 minutes/week; reported change comparison P=.04.
Support beyond a tracker
Every participant received a tracker. The trial therefore tested whether personalized digital support added value beyond that device, with messages tailored using participants' tracker data and other support delivered online.
Activity measured several ways
The primary outcome was activity measured with an ActiGraph device and a recall interview. The report also examined steps from the tracker, offering several ways to assess changes in movement.
The original publication
A Multiple Technology-Based Physical Activity Intervention for Latina Adolescents: Results From the Chicas Fuertes Randomized Controlled Trial.
Carson JR, Greenstadt E, Olivera B et al.
JMIR Mhealth Uhealth · 2025
- PubMed ID
- 41380028
- Record checked
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