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Using avatars in weight management settings: A systematic review.

M Horne1, A Hill2, T Murells3

  • 1Faculty of Medicine and Health, School of Healthcare, University of Leeds, Leeds LS1 9JT, UK.

Internet Interventions
|December 25, 2019
PubMed
Summary
This summary is machine-generated.

Avatar technology may aid adult weight loss by enhancing motivation and improving outcomes in the short to medium term. However, the evidence base is limited, requiring cautious interpretation of these virtual self-representation findings.

Keywords:
AvatarsObesitySecond lifeSystematic reviewVirtual realityWeight loss

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Area of Science:

  • Behavioral science
  • Health psychology
  • Digital health

Background:

  • Obesity interventions often struggle with poor long-term adherence to dietary and physical activity regimens.
  • Avatar technology, or virtual self-representations, shows potential for influencing real-world behavior, including weight management.
  • The efficacy of avatar technology in promoting sustained weight loss remains unclear.

Purpose of the Study:

  • To systematically review and assess the empirical evidence supporting the use of avatar technologies in adult weight loss interventions.
  • To determine if avatar inclusion enhances weight loss compared to standard interventions.
  • To evaluate if avatar personalization (visual self-representation) further improves weight loss outcomes.

Main Methods:

  • A systematic review of empirical studies was conducted.
  • Studies were analyzed to compare weight loss in avatar-based interventions versus routine interventions.
  • The impact of avatar personalization on weight loss achievement was also examined.

Main Results:

  • Six studies reporting weight loss data were identified.
  • Avatar-based interventions demonstrated effectiveness for short-term (4-6 weeks) and medium-term (3-6 months) weight loss.
  • Long-term weight loss maintenance (12 months) was improved, with some indication of added motivational benefits from avatar personalization.

Conclusions:

  • Current evidence suggests avatars can positively influence weight loss achievement and enhance user motivation.
  • The limited number of studies (n=6) necessitates a cautious interpretation of the findings.
  • Further research is needed to solidify the role of avatar technology in obesity interventions.