NCT03598647

Brief Summary

This study seeks to investigate why some individuals exercise more than others by focusing on feelings related to exercise. This two part study first examines whether regular exercisers (n=30) and non-exercisers (n=30) differ in how a 30-minute moderate-intensity exercise bout makes them feel. All participants will walk on a treadmill for 30 minutes on two separate occasions and will be asked to report on how they feel before, during, and after exercise, how they anticipate that exercise will make them feel, and how they remembered feeling during exercise. In addition, after exercise session #2, non-exercisers will be randomized to: 1) a brief intervention focused on providing general information about the physical activity guidelines, or 2) a brief intervention which provides general information about physical activity guidelines, but also focuses on affective responses to physical activity. Non-exercisers will complete an identical, third exercise session approximately 1-week following this intervention. Further, all participants will receive a 12-week, Internet-delivered weight loss program following all exercise visits and physical activity will be assessed before and after the weight loss program.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2018

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

July 16, 2018

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 26, 2018

Completed
5 days until next milestone

Study Start

First participant enrolled

July 31, 2018

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 12, 2019

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 22, 2019

Completed
1.9 years until next milestone

Results Posted

Study results publicly available

September 28, 2021

Completed
Last Updated

September 28, 2021

Status Verified

November 1, 2019

Enrollment Period

12 months

First QC Date

July 16, 2018

Results QC Date

August 4, 2021

Last Update Submit

August 31, 2021

Conditions

Keywords

exercisephysical activityobesityweight loss

Outcome Measures

Primary Outcomes (6)

  • Pre-exercise Affect (Session 1)

    Measured using Feeling Scale (FS) prior to exercise bout. Scores range from -5 to +5 with higher values indicating more positive affect

    Prior to exercise

  • Mean During Exercise Affect (Session 1)

    Average during exercise Feeling Scale (FS) score which was assessed every 5 minutes during exercise. Feeling Scale scores range from -5 to +5 with higher values indicating more positive affect.

    average score assessed every 5 minutes during exercise, up to 30 minutes

  • Post-exercise Affect (Session 1)

    Feeling Scale (FS) score 15 minutes post-exercise. Feeling Scale scores range from -5 to +5 with higher values indicating more positive affect.

    15 minutes post-exercise

  • Memory of During Exercise Affect (Session 1) - Calculated as the Difference Between Recalled During Exercise Affect and Actual During Exercise Affect

    Calculated as follows: recalled during exercise affect (assessed 7 days post-exercise) minus actual during exercise affect (average of Feeling Scale scores every 5 minutes during exercise). Possible scores for both recalled affect and actual affect range from -5 to +5, where higher numbers indicate more positive affect. A negative change value indicates that participants remembered feeling less positive during exercise than they actually felt.

    average score assessed every 5 minutes during exercise, up to 30 minutes, and 7 days post-exercise

  • Memory of Post-exercise Affect (Session 1) - Calculated as the Difference Between Recalled Post-exercise Affect and Actual Post-exercise Affect

    Calculated as follows: recalled post-exercise affect (assessed 7 days following exercise session) minus actual post-exercise affect (Feeling Scale score assessed 15 minutes post-exercise). Possible scores for both recalled affect and actual affect range from -5 to +5, where higher numbers indicate more positive affect. A negative change value indicates that participants remembered feeling less positive post-exercise than they actually felt.

    15 minutes and 7 days post-exercise

  • Anticipated During Exercise Affect (Session 2)

    How one anticipates that they will feel during exercise session 2 (an exercise session that is identical to exercise session 1).This was assessed prior to exercise session 2 via a 100 mm visual analogue scale (range 1-100) where a higher number indicates more positive affect.

    prior to exercise session

Secondary Outcomes (3)

  • Pre-exercise Affect (Session 3)

    Prior to exercise

  • Mean During Exercise Affect (Session 3)

    average score assessed every 5 minutes during exercise, up to 30 minutes

  • Post-exercise Affect (Session 3)

    15 minutes post-exercise

Study Arms (4)

Physical activity information - for non-exercisers only

ACTIVE COMPARATOR

Non-exercisers randomized to this condition will receive basic information about physical activity. This includes the national physical activity guidelines,clarification of 'moderate-intensity', exercise safety, and the progression of physical activity within the weight loss program.

Behavioral: Physical activity information

Affect and physical activity - for non-exercisers only

EXPERIMENTAL

Non-exercisers randomized to this condition will receive the same basic information about physical activity as described above, but they will also receive a brief intervention focused on affective responses to exercise.

Behavioral: Affect and physical activity

Exercisers

NO INTERVENTION

Engaging in \>=150 min/week of moderate-intensity exercise over the past 6 months and a most recent typical week

Non-exercisers

NO INTERVENTION

Engaging in \<30 min/week of moderate-intensity exercise over the past 6 months and a most recent typical week

Interventions

The focus of this intervention is to help the participant to become more aware of their positive feelings and experiences related to exercise. They will learn about typical affective responses to exercise, view their own affective responses to exercise, and they will be taught cognitive strategies for altering affective responses to exercise. Participants will also receive general information about exercise safety, physical activity guidelines, and exercise intensity.

Affect and physical activity - for non-exercisers only

Participants will receive general information about exercise safety, physical activity guidelines, and exercise intensity.

Physical activity information - for non-exercisers only

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Age 18-60 years
  • BMI between 25.0 and \<40.0 kg/m2
  • Either a 'Non-exerciser', defined as reporting exercising at a moderate-intensity for \<30 min/week over the past 6 months and a most recent typical week or an 'exerciser', defined as exercising for ≥150 min/week over the past 6 months and a most recent typical week.

You may not qualify if:

  • Presence of any condition that would limit one's ability to exercise (e.g., orthopedic limitations)
  • History of coronary artery disease (i.e., myocardial infarction or symptoms of angina), stroke, diabetes, or pulmonary disease (e.g., COPD or emphysema).
  • Currently taking any medication that would alter heart rate (e.g., beta blocker)
  • Women who are pregnant or nursing
  • Uncontrolled hypertension (resting blood pressure ≥140/90 mmHg)
  • Exercising \>30 min/week but \<150 min/week (i.e., neither 'non-exerciser' nor 'exerciser')
  • Use of medications for weight loss, or current participation in another weight loss program
  • Bariatric surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Miriam Hospital's Weight Control and Diabetes Research Center

Providence, Rhode Island, 02903, United States

Location

MeSH Terms

Conditions

Motor ActivityObesityWeight Loss

Interventions

Exercise

Condition Hierarchy (Ancestors)

BehaviorOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight Changes

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Results Point of Contact

Title
Jessica Unick, PD (Principal Investigator)
Organization
The Miriam Hospital

Study Officials

  • Jessica Unick, PhD

    The Miriam Hospital

    PRINCIPAL INVESTIGATOR
  • Kathryn Demos, PhD

    The Miriam Hospital

    PRINCIPAL INVESTIGATOR
  • David Williams, PhD

    Brown University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 16, 2018

First Posted

July 26, 2018

Study Start

July 31, 2018

Primary Completion

July 12, 2019

Study Completion

October 22, 2019

Last Updated

September 28, 2021

Results First Posted

September 28, 2021

Record last verified: 2019-11

Data Sharing

IPD Sharing
Will not share

Locations