NCT04348617

Brief Summary

This pilot study will use a crossover design to explore the effects of acute exercise following bariatric surgery on food intake, energy expenditure, appetite, food reward, appetite hormones, and inflammatory response. Participants will take part in a moderate-intensity exercise session and control condition of 50 minutes. The energy balance will be assessed for 3 days following the condition by giving the participants all the food they can consume for 3 days and having them wear an accelerometer. The investigators hypothesize that post-gastric bypass participants with higher weight regain will have a higher compensation in response to exercise, thus an increase in food intake and/or a decrease in total energy expenditure after exercise compared to participants with less weight regain; also post-gastric bypass participants with a higher weight regain will have a lower inflammatory response to exercise compared to the group with less weight regain.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started May 2021

Typical duration for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
unknown

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

March 26, 2020

Completed
21 days until next milestone

First Posted

Study publicly available on registry

April 16, 2020

Completed
1.1 years until next milestone

Study Start

First participant enrolled

May 15, 2021

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2023

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2023

Completed
Last Updated

November 2, 2022

Status Verified

October 1, 2022

Enrollment Period

1.9 years

First QC Date

March 26, 2020

Last Update Submit

October 31, 2022

Conditions

Keywords

Bariatric SurgeryAppetiteFood intakeEnergy expenditureFood rewardAppetite hormonesInflammatory responseacute exercise

Outcome Measures

Primary Outcomes (2)

  • Change of energy intake between rest and exercise conditions (kcal/d)

    The energy intake and macronutrients from the ad libitum will be measured with the validated technique of the food menu. A total of 62 items will be on the menu to ensure that sufficient hot meals, snacks, fruits, vegetables and beverages are available to the participants. Briefly, participants will be invited to choose from this validated menu, their breakfast, the meals they would like to have for lunch and after lunch the meals they would like to eat for the next 3 days (from midnight to midnight). The research assistant will instruct them to consume as much of these products as they want. All selected foods will be prepared and measured according to the guidelines described above. The food and beverages selected for the 3 days will be packed in plastic containers or bottles, which will be placed in a portable cooler for the participants to take with them. They must return all leftovers, packaging and peels in their original containers.

    At least one week after baseline evaluation (visit 2) and 15 days to a maximum of 2 months after visit 2

  • Change of total energy expenditure post-experimentation between rest and exercise conditions (kcal/d)

    Total energy expenditure: Using an accelerometer (Actigraph® GT3X+) worn on the right side at the waist for 3 days following the experimental conditions (except during showering and aquatic physical activities), total EE will be estimate (ActiLife® Software). In parallel, the participant will have to complete a physical activity logbook during the 3 days of wearing the accelerometer.

    At least one week after baseline evaluation (visit 2) and 15 days to a maximum of 2 months after visit 2

Secondary Outcomes (20)

  • Change of appetite sensation score during experimentation and between conditions; visual analog scale (0-100mm)

    At least one week after baseline evaluation (visit 2) and 15 days to a maximum of 2 months after visit 2

  • Change of food rewards score during experimentation and between conditions, The Leeds Food Preference Questionnaire

    At least one week after baseline evaluation (visit 2) and 15 days to a maximum of 2 months after visit 2

  • Change of blood IL-6 concentration during experimentation and between conditions

    At least one week after baseline evaluation (visit 2) and 15 days to a maximum of 2 months after visit 2

  • Baseline resting energy expenditure (kcal/d)

    Baseline

  • Exercise energy expenditure (kcal/d)

    Baseline and during the exercise condition = at least one week after baseline evaluation (visit 2) OR 15 days to a maximum of 2 months after visit 2

  • +15 more secondary outcomes

Study Arms (2)

Exercise-Rest

EXPERIMENTAL

This group will perform the exercise condition at least 1 week after the preliminary visit and will perform the resting condition a minimum of 15 days and a maximum of 2 months after the exercise condition.

Other: Moderate exerciseOther: Rest

Rest-Exercise

EXPERIMENTAL

This group will perform the resting condition at least 1 week after the preliminary visit and will perform the exercise condition a minimum of 15 days and a maximum of 2 months after the resting condition.

Other: Moderate exerciseOther: Rest

Interventions

50 minutes of moderate exercise on treadmill

Also known as: Walking
Exercise-RestRest-Exercise
RestOTHER

50 minutes of rest or sedentary activity

Exercise-RestRest-Exercise

Eligibility Criteria

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

You may qualify if:

  • declare to be an adult (≥ 18 years old)
  • self-declared physically inactive (practicing less than 150 min/week of moderate to high intensity physical activity)
  • received a gastric bypass Roux-en-Y more than 24 months ago at the Ottawa Hospital
  • have regained weight ≤5%/year of total weight loss at nadir or ≥15%/year (n=15 regain)

You may not qualify if:

  • be pregnant, breastfeeding or menopausal
  • have depressive symptoms (score ≥16 at the Center Epidemiologic Depression-Scale)
  • take medication that may influence appetite or weight loss
  • declare they cannot walk for 50 minutes
  • be classified as high risk according to the stratification model of the ACSM (people with heart disease, Peripheral vascular or cerebrovascular disease, chronic obstructive pulmonary disease, asthma, interstitial lung disease or cystic fibrosis, type 1 and 2 diabetes, thyroid disorders, kidney or liver disease) and not having medical authorization.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Aurelie Baillot

Gatineau, Quebec, j9a2y7, Canada

RECRUITING

MeSH Terms

Conditions

Obesity

Interventions

WalkingRE1-silencing transcription factor

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

LocomotionMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaExerciseMotor Activity

Central Study Contacts

aurelie Baillot

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
SUPPORTIVE CARE
Intervention Model
CROSSOVER
Model Details: Participants will take part in a randomized exercise and control (rest) condition.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 26, 2020

First Posted

April 16, 2020

Study Start

May 15, 2021

Primary Completion

March 31, 2023

Study Completion

September 30, 2023

Last Updated

November 2, 2022

Record last verified: 2022-10

Locations