eMOTION: Examining Implicit Attitudes in Physical Activity Engagement

University of Southern California

Status: Enrolling

Conditions: Overweight or Obesity; Physical Activity; Cancer

Treatments: Behavioral: SAVOR enhancement; Behavioral: TYPE/CONTEXT enhancement; Behavioral: Physical Activity Goals mHealth Intervention

Study type: Observational

Funder types: Other; NIH

Identifiers

NCT07044570

R03CA292977 (U.S. NIH Grant/Contract)

UP-24-00381

Details and patient eligibility

About

This early-phase trial will test intervention strategies to influence implicit attitudes towards physical activity and determine whether changes in those mechanisms result in change in physical activity behavior among inactive adults who are overweight or obese.

Full description

This ORBIT model phase 1 trial will examine whether implicit attitudes (1) can be experimentally manipulated in real-world settings; and (2) mediate the relationship between interventions and physical activity behavior. A novel physical activity intervention will be optimized by efficiently disentangling the effects of its core component and two enhancement components on affective mechanisms associated with physical activity engagement.

Enrollment: 120 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Aged ≥ 18 years
2. Reside in the United States
3. Self-reported BMI ≥ 25
4. Current structured physical activity engagement < 60 minutes per week
5. Own a personal smartphone device
6. Reside in an area with Internet or Wi-Fi connectivity during the study period
7. Able to speak and read in English
8. Interested and willing to start a physical activity program
9. Willing to wear a Fitbit Versa smartwatch provided by the study team everyday continuously (including at work and during physical activity), in place of any Fitbits or smartwatches previously worn, for the duration of the study period
10. Able to read the small font on a smartwatch screen without glasses, or willing to carry reading glasses during physical activity for the purpose of reading the smartwatch screen
11. Enrolled in the parent eMOTION intervention study

Exclusion criteria

1. Inability to provide informed consent due to cognitive disability
2. Inability to engage in one or more key treatment components, including those with medical conditions that preclude physical activity engagement or who cannot wear an accelerometer on the wrist or answer brief surveys on the smartwatch for any reason
3. Current pregnancy
4. Referred to the study by another participant or from Reddit.

Trial design

120 participants in 8 patient groups

Affect (no enhancements) > Intensity

Description:

Participants receive affect-based goals for the first 8-weeks, then cross-over to receive intensity-based goals for the second 8-weeks. No enhancements are added to the standard mHealth intervention.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Intensity > Affect (no enhancements)

Description:

Participants receive intensity-based goals for the first 8-weeks, then cross-over to receive affect-based goals for the second 8-weeks. No enhancements are added to the standard mHealth intervention.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Affect (+ SAVOR + TYPE/CONTEXT) > Intensity

Description:

Participants receive affect-based goals for the first 8-weeks. In addition to the standard mHealth intervention, participants engage in both SAVOR and TYPE/CONTEXT enhancements to augment the treatment effects of the affect-based goals condition. Participants then cross-over to receive intensity-based goals for the second 8-weeks.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: TYPE/CONTEXT enhancement

Behavioral: SAVOR enhancement

Intensity > Affect (+ SAVOR + TYPE/CONTEXT)

Description:

Participants receive intensity-based goals for the first 8-weeks, then cross-over to receive affect-based goals for the second 8-weeks. In addition to the standard mHealth intervention, participants engage in both SAVOR and TYPE/CONTEXT enhancements to augment the treatment effects of the affect-based goals condition.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: TYPE/CONTEXT enhancement

Behavioral: SAVOR enhancement

Affect (+SAVOR) > Intensity

Description:

Participants receive affect-based goals for the first 8-weeks. In addition to the standard mHealth intervention, participants engage in the SAVOR enhancement to augment the treatment effects of the affect-based goals condition. Participants then cross-over to receive intensity-based goals for the second 8-weeks.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: SAVOR enhancement

Intensity > Affect (+SAVOR)

Description:

Participants receive intensity-based goals for the first 8-weeks, then cross-over to receive affect-based goals for the second 8-weeks. In addition to the standard mHealth intervention, participants engage in the SAVOR enhancement to augment the treatment effects of the affect-based goals condition.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: SAVOR enhancement

Affect (+TYPE/CONTEXT) > Intensity

Description:

Participants receive affect-based goals for the first 8-weeks. In addition to the standard mHealth intervention, participants engage in the TYPE/CONTEXT enhancement to augment the treatment effects of the affect-based goals condition. Participants then cross-over to receive intensity-based goals for the second 8-weeks.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: TYPE/CONTEXT enhancement

Intensity > Affect (+TYPE/CONTEXT)

Description:

Participants receive intensity-based goals for the first 8-weeks, then cross-over to receive affect-based goals for the second 8-weeks. In addition to the standard mHealth intervention, participants engage in the TYPE/CONTEXT enhancement to augment the treatment effects of the affect-based goals condition.

Treatment:

Behavioral: Physical Activity Goals mHealth Intervention

Behavioral: TYPE/CONTEXT enhancement