NCT04868032

Brief Summary

This randomized controlled trial examines the feasibility, acceptability, and preliminary impact of an adapted positive psychology-motivational interviewing (PP-MI) intervention for physical activity among patients who have recently undergone bariatric surgery compared to an enhanced usual care control.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 28, 2021

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 30, 2021

Completed
1.2 years until next milestone

Study Start

First participant enrolled

July 1, 2022

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 3, 2025

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 3, 2025

Completed
10 months until next milestone

Results Posted

Study results publicly available

March 27, 2026

Completed
Last Updated

March 27, 2026

Status Verified

March 1, 2026

Enrollment Period

2.6 years

First QC Date

April 28, 2021

Results QC Date

February 3, 2026

Last Update Submit

March 6, 2026

Conditions

Keywords

Positive PsychologyMotivational InterviewingPhysical Activity

Outcome Measures

Primary Outcomes (2)

  • Number of Intervention Sessions Completed

    Feasibility will be measured by examining the number of completed intervention sessions for individuals randomized to the PP-MI intervention. The intervention will be considered feasible if at least 7/10 sessions are completed, on average.

    10 weeks

  • Intervention Acceptability

    After each of the 10 weekly intervention sessions, participants will rate that week's PP and goal-setting topics on how easy they were to complete and how helpful they were. Ratings will be measured on a 10-point Likert scale (1=very difficult/not at all helpful, 10=very easy/very helpful). Ratings for each category (e.g., ease of PP exercises) will be averaged across the 10 sessions to calculate a single value for that participant. The intervention will be considered acceptable if average ease and utility ratings are at least 7/10.

    10 weeks

Secondary Outcomes (24)

  • Change in Moderate to Vigorous Physical Activity (MVPA)

    Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  • Change in Steps

    Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  • Change in Light Physical Activity

    Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  • Change in Positive Affect

    Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  • Change in Optimism

    Baseline, 10-Week Follow-Up, 24-Week Follow-Up

  • +19 more secondary outcomes

Study Arms (2)

Positive Psychology-Motivational Interviewing Intervention

EXPERIMENTAL

Participants will receive a written treatment manual with detailed information about each topic. The intervention consists of 10 weekly phone sessions (30 minutes each). Each session includes a new psychological skill designed to increase positive emotions experienced during physical activity, a motivational skill designed to boost physical activity, and setting a physical activity goal for the next week using information from the Fitbit. A motivational interviewing approach will be used for all topics.

Behavioral: Positive Psychology-Motivational Interviewing

Physical Activity Education Control

ACTIVE COMPARATOR

Participants randomized to this condition will be provided with a Fitbit, and will be mailed educational materials about physical activity at 4 time points throughout the intervention period. They will not receive a manual or phone calls with an interventionist.

Behavioral: Physical Activity Education Control

Interventions

Participants will receive a written treatment manual with detailed information about each topic. The intervention consists of 10 weekly phone sessions (30 minutes each). Each session includes a new psychological skill designed to increase positive emotions experienced during physical activity, a motivational skill designed to boost physical activity, and setting a physical activity goal for the next week using information from the Fitbit. A motivational interviewing approach will be used for all topics.

Positive Psychology-Motivational Interviewing Intervention

Participants randomized to this condition will be provided with a Fitbit, and will be mailed educational materials about physical activity at 4 time points throughout the intervention period. They will not receive a manual or phone calls with an interventionist.

Physical Activity Education Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult (age 18+)
  • History of bariatric surgery (gastric bypass or sleeve gastrectomy) at one of two academic medical centers within the past 6-12 months
  • Interest in increasing physical activity
  • Low physical activity, defined as \<200 minutes/week self-reported moderate- to-vigorous physical activity
  • Access to telephone for study sessions
  • Able to read and speak English

You may not qualify if:

  • Cognitive deficits precluding participation or informed consent
  • Illness likely to lead to death in the next 6 months
  • Inability to be physically active (e.g., severe arthritis)
  • Participation in another program targeting physical activity besides their standard offerings at the surgery center.
  • Severe psychiatric condition limiting ability to participate (e.g., psychosis, active substance use disorder)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

Related Publications (1)

  • Feig EH, Harnedy LE, Thorndike AN, Psaros C, Healy BC, Huffman JC. A Positive Emotion-Focused Intervention to Increase Physical Activity After Bariatric Surgery: Protocol for a Pilot Randomized Controlled Trial. JMIR Res Protoc. 2022 Oct 6;11(10):e39856. doi: 10.2196/39856.

MeSH Terms

Conditions

Motor Activity

Condition Hierarchy (Ancestors)

Behavior

Results Point of Contact

Title
Dr. Emily Feig
Organization
Massachusetts General Hospital

Study Officials

  • Emily H Feig, PhD

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
A research assistant blinded to study condition will conduct follow-up assessment visits.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Instructor in Psychology

Study Record Dates

First Submitted

April 28, 2021

First Posted

April 30, 2021

Study Start

July 1, 2022

Primary Completion

February 3, 2025

Study Completion

June 3, 2025

Last Updated

March 27, 2026

Results First Posted

March 27, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations