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Research on the Needs, Feasibility, and Intervention Effects of AI Health Coach-based Just-in-Time Adaptive Intervention (JITAI) in Weight Management for Overweight/Obese Adults

Research on the Needs, Feasibility, and Intervention Effects of AI Health Coach-based Just-in-Time Adaptive Intervention (JITAI) in Weight Management for Overweight/Obese Adults

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600118808
Enrollment
Unknown
Registered
2026-02-11
Start date
2026-02-15
Completion date
Unknown
Last updated
2026-02-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overweight and obesity

Interventions

Phase 1: Requirements Investigation Team:None
Phase 2: Intervention group:Based on the COM-B model and the JITAI framework, a 31-day intervention was conducted using smart bracelets and WeChat mini-programs. It includes: 1. Passive monitoring (st
2. Active assessment (EMA questionnaire)
3. AI intelligent decision-making push (pushing personalized health advice and psychological support at critical moments such as prolonged sitting and stress).

Sponsors

The Fourth Affiliated Hospital of Zhejiang University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Aged >=18 years and =24.0 kg/m^2 (meeting the Chinese standard for overweight); 3. Own and be proficient in using a smartphone, and pass the digital literacy screening (able to use WeChat independently, complete WeChat mini-program binding independently, and respond to notifications independently); 4. Voluntarily participate in this study and sign a written informed consent form.

Exclusion criteria

Exclusion criteria: 1. Secondary obesity caused by endocrine and other diseases or hormone therapy; 2. Vulnerable groups, including people with mental illnesses, cognitive impairments, critically ill patients, minors, pregnant women (currently pregnant, planning to become pregnant, or breastfeeding), illiterate individuals, etc.; 3. Currently participating in other weight loss programs or clinical trials; 4. History of severe skin allergies or intolerance to long-term use of wearable devices.

Design outcomes

Primary

MeasureTime frame
weight;Body Mass Index(BMI);body fat percentage;

Secondary

MeasureTime frame
Intervention compliance;System usage rate;Physical activity;Nutritious diet;Sleep quality;self-efficacy;Health-related quality of life;Application Quality and Satisfaction;

Countries

China

Contacts

Public ContactYu Jie

The Fourth Affiliated Hospital of Zhejiang University School of Medicine

8021088@zju.edu.cn+86 184 1337 2541

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 19, 2026