Using the Onitor® Track for weight loss: A mixed methods study among overweight and obese women

Kelly Buchan, Heather M Morgan* (Corresponding Author)

*Corresponding author for this work

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Non-communicable disease rates associated with being overweight or obese are rising. Technologies warrant consideration as weight loss interventions. Cloudtag’s® Onitor® Track, a dual-position wearable plus smartphone application, monitors energy expenditure and provides tailored exercise programmes. This research aimed to undertake an experimental study of 20 overweight and obese women using the technology; explore its feasibility and acceptability through interviews; and investigate its behaviour change techniques. The primary outcome was decreased body weight (kg) at 4 weeks. Secondary outcomes were body mass index (kg/m2) and waist circumference (cm) changes. 15 overweight and obese women took part. Results indicated weight loss (median 2.7 kg, p < 0.05) and waist circumference decrease (median 4 cm, p < 0.05), but attrition was high (60%). Users reported dietary changes but few activity adjustments. They valued feedback. 27 behaviour change techniques were identified. The Onitor® Track shows potential for weight loss in overweight and obese women, but further work is needed.
Original languageEnglish
Pages (from-to)1841-1865
Number of pages25
JournalHealth Informatics Journal
Issue number3
Early online date17 Dec 2019
Publication statusE-pub ahead of print - 17 Dec 2019


  • behaviour change
  • digital technology
  • mHealth
  • self-monitoring
  • weight loss

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