AzTrials
AzTrials

Motor ActivityNCT02867696

Effect of a Technology-Based Intervention on Weight Change Post-Bariatric Surgery

A study testing Technology-based Intervention (TECH) in people with Motor Activity and Weight Loss, run by University of Pittsburgh at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

The primary aim of this study is to examine the effect of applying a minimal contact technology-based intervention (TECH) at 1-year post-bariatric surgery on weight change compared to Standard Care. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Motor Activity, Weight Loss
What is being tested?
Technology-based Intervention (TECH)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
Jan 2015to 29 Apr 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Between the ages of 18-60 years.
  • 1-year post-bariatric surgery.
  • Able to walk at 3 miles per hour during a cardiorespiratory fitness test.

Who cannot join

  • Reports not having access to a computer, access to the Internet, email, or the availability to download software onto a computer.
  • Reports not having a smart phone device that is compatible with the Jawbone UP3 System that will be examined in this study.
  • Has a physical limitation that would prevent engaging in physical activity.
  • Reports being treated for a current medical condition that could affect body weigh (diabetes mellitus, cancer, chronic renal insufficiency, hyperthyroidism, hypothyroidism, chronic liver disease).
  • Reports current congestive failure, angina, uncontrolled arrhythmia, symptoms indicative of increased risk of an acute cardiovascular event, coronary artery bypass grafting or angioplasty, prior myocardial infarction, and conditions requiring anticoagulation therapy (deep vein thrombosis).
  • Has a resting systolic blood pressure ≥ 150 mmHg or resting diastolic blood pressure of ≥100 mmHg or taking medication to control blood pressure that affects heart rate.
Show all 12Show fewer
  • Reports being treated for a psychological issue (i.e., depression, bipolar disorder, etc).
  • Taking prescription or over-the-counter medications that affect body weight and metabolism.
  • Currently participating in an exercise or weight control study or a current participant in a commercial weight reduction program.
  • Currently being treated for an eating disorder.
  • Currently pregnant, pregnant in the last 6 months, breast feeding in the last 3 months, lactating, to planning on becoming pregnant in the next 6 months.
  • Planning on relocating outside of the greater Pittsburgh area within the next 6 months.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Physical Activity and Weight Management Research Center / University of Pittsburgh

    Pittsburgh, Pennsylvania, 15261

Other trials in United States

About this study

The primary aim of this study is to examine the effect of applying a minimal contact technology-based intervention (TECH) at 1-year post-bariatric surgery on weight change compared to Standard Care. Forty participants at 1-year post bariatric surgery will be randomized to TECH or Standard Care for a period of 6 months (12 to 18 months post-surgery). Analyses will be conducted to compare these interventions for differences in body weight, body composition, fitness, physical activity, engagement, psychosocial measures, and intervention cost and cost-effectiveness of each approach. TECH will consist of a wearable monitor that provides feedback on energy expenditure and physical activity, electronic tracking of dietary intake, and integration of an electronic scale to provide comprehensive feedback to the participant on all components of weight management. TECH participants will receive a monthly telephone call from the intervention staff to provide guidance on their weight management efforts.

Read the detailed description

This randomized controlled trial will examine the effect of a minimal contact technology-based system in comparison to standard care on body weight in adults 1 year post-bariatric surgery. This 6 month intervention will be conducted at the University of Pittsburgh, Physical Activity and Weight Management Research Center. Eligible participants who obtain physician's consent will undergo baseline assessments. Assessments will be described in further detail below.

Eligible participants who complete all baseline assessment procedures will be randomized to one of two intervention groups: The minimal contact technology-based intervention using the Jawbone UP3 System combined with a monthly intervention telephone call (TECH), or Standard Care.

Standard Care serves as the no treatment control in this project. Participants in this group will receive the typical care from their surgeon following bariatric surgery. No additional interventions will be given to participants randomized to this group.

TECH Intervention: TECH is the experimental group in this project. A minimal-contact technology-based intervention for weight management will be given to this group in addition to the standard or typical care received from their surgeon following bariatric surgery. The following information outlines the protocol for this intervention group.

Dietary Component: Dietary recommendations will be based on the subjects' baseline body weight, with calorie and fat intake goals ranging from 1200-2100 kcal/day and 20-30% of daily calories respectively. The calorie goals are based on intake recommendations that have been shown to result in successful short-term weight loss with fat intake goals consistent with the USDA Dietary Guidelines. To facilitate adoption and maintenance of these dietary intake goals, participants will be provided with meal plans and sample recipes. In addition, participants will be taught how to read food labels and will be provided with The Calorie King Calorie, Fat, and Carbohydrate Counter to facilitate self-monitoring of calorie and fat intake. Intervention lessons will be sent to the participants via email and will also include information related to behavior strategies for achieving the desired calorie and fat intake goals.

Physical Activity Component: The physical activity component will include an unsupervised home-based exercise program. Participants will be asked to perform aerobic physical activity recommended at a moderate intensity defined as 3-6 metabolic equivalents (METS). This intensity is similar to brisk walking, however can be achieved through aerobic-based activities of the participants' choice. Equipment will not be provided to the participants. To facilitate adoption of this intensity of physical activity, participants will be provided both a target heart rate (60-70% of age-predicted maximal heart rate) and rating of perceived exertion (11-13 on the 15-category Borg Scale). Baseline physical activity participation will be evaluated and intervention recommendations will be prescribed to progress to 250 minutes per week by 13th week of the intervention, which is consistent with the recommendations of the American College of Sports Medicine (ACSM). Participants will be encouraged to complete the prescribed doses of physical activity each week, with daily goals achieved by performing the activity in one continuous bout or accumulated across several shorts bouts that are each at least 10 minutes in duration. Intervention lessons will be sent to the participants via email and will also include information related to behavior strategies for achieving the desired activity goals for this study.

Participants in this group will be provided with the Jawbone UP3 System. The Jawbone UP3 System includes a wearable device to monitor physical activity and energy expenditure that will transmit real-time feedback on calories expended and physical activity directly to a smart phone containing the web-interface/application. In addition, the smart phone supports self-monitoring of dietary behaviors and body weight to provide real-time feedback of goal achievement. A digital smart scale will also be provided to TECH participants. The smart scale (Withings®, Inc.) transmits objective measures of body weight directly to a smart phone application which also interfaces with the Jawbone UP3 System. All technology tools (UP3 system in combination with the smart scale) will allow for self-monitoring of energy expenditure, energy balance, physical activity, dietary intake, and body weight to occur in real-time and within an integrated system. Participants will attend one introductory session in which a tutorial of the components of the Jawbone UP3 System and smart scale will be provided. Individuals will be given confidential login codes which will provide access to the websites and smart phone applications. Login procedures as well as uploading data and Bluetooth® syncing of the technology components will be demonstrated. Detailed written instructions will also be given illustrating these procedures. Additionally, a follow-up call within 1 week of the initial meeting will occur to make sure that all technology components are working properly.

TECH will also initially receive a one-hour lesson on basic guidelines of the weight management intervention. At this time, caloric goals and weekly physical activity recommendations will be explained. To support weight loss behaviors, participants will be encouraged to use the Jawbone UP3 System and smart scale to self-monitor dietary intake, physical activity, and body weight.

Participants in TECH will also receive a scheduled intervention telephone call from a study coach on the following schedule:

-Month 1: One call per week for the first 4 weeks of the study. This will support the participants with making changes to their lifestyle behaviors as a part of the intervention. Additionally, this call will be used to ensure that the technology is functioning properly and that it is being used as intended by the study.

Months 2-6: One call per month. This call will be used to provide continued intervention support in addition.

These telephone calls will take approximately 10-15 minutes and will be completed by a member of the intervention staff that is experienced using the Jawbone UP3 System and smart scale and is trained in delivering behavioral telephone interventions. Strategies to overcome weight-loss barriers will be primarily discussed, and a standardized script will serve as a guide to address technical difficulties using the UP3 System and smart scale, frequency of technology usage, participant goals, barriers to diet and physical activity, and monitoring of body weight. Interventionists will have access to the information uploaded to the web-interfaces from the UP3 System and smart scale, and this will allow the interventionist to review this information prior to facilitating interactions with participants during the telephone calls. The length of each telephone intervention will be recorded.

Being tested
Standard Care, Technology-based Intervention (TECH)
Keywords
Bariatric Surgery, Physical Activity, Weight Management, Weight Loss
Medical subject headings
Motor Activity, Weight Loss

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Standard CareOther

    Subjects in this arm will receive the standard care that is provided by their bariatric surgical team following bariatric surgery.

  • Technology-based Intervention (TECH)Behavioural

    Dietary recommendations: based on the subjects' baseline body weight, with calorie goals ranging from 1200-2100 kcal/day.

    The physical activity component: unsupervised home-based exercise program. Intensity/Mode: aerobic physical activity recommended at a moderate intensity. Prescription: progress to 250 min/wk by 13th week of the intervention.

    Self-monitoring: Jawbone UP3 System includes a wearable device to monitor physical activity and energy expenditure that will transmit real-time feedback on calories expended and physical activity directly to a smart phone. An integrated digital smart scale will also be provided.

    Contact: scheduled intervention telephone call: Month 1: One call per week for the first 4 weeks of the study; Months 2-6: One call per month.

Study groups in NCT02867696
Study groupRoleWhat they receive
Standard CareActive comparatorStandard Care serves as the no treatment control in this project. Participants in this group will receive the typical care from their surgeon following bariatric surgery. No additional interventions will be given to participants randomized to this group.
Receives: Other: Standard Care
Technology-based Intervention (TECH)ExperimentalTECH is the experimental group in this project. A minimal-contact technology-based intervention for weight management will be given to this group in addition to the standard or typical care received from their surgeon following bariatric surgery.
Receives: Behavioral: Technology-based Intervention (TECH)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To examine the effect of applying a minimal contact technology-based intervention (TECH) at 1-year post-bariatric surgery on weight change compared to Standard Care over the subsequent 6 months.

    Body Weight (5 minutes; 0, 3, 6 months): Body weight will be measured to the nearest 0.1 kg on a Tanita WB-110A digital scale (Tanita Corporation; Arlington Heights, IL). Measures will be taken in a light-weight hospital gown with shoes and accessories removed.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

Secondary outcomes (17)
  1. To examine the effect of TECH and Standard Care on change in body composition.

    Regional Adiposity by Anthropometry (5 minutes; 0, 6 months): Taken in a lightweight hospital gown and measured to the nearest 0.1 cm using a Gulick tape measure. Waist circumference will be taken from the front at the level of the iliac crest. Hip circumferences will be taken from the side while making a horizontal circumference at the maximal protrusion of the gluteal muscles.

    Body Composition (30 minutes total; 0, 6 months): Body composition will be assesses using 2 methods (1) bioelectrical impedance analysis (BIA), and (2) dual xray absorptiometry (DXA).

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  2. To examine the effect of TECH and Standard Care on change in cardiorespiratory fitness.

    Cardiorespiratory Fitness: (40 minutes; 0, 6 months): Subjects will complete a graded exercise test on a treadmill using indirect calorimetry to measure peak oxygen consumption. With peak oxygen used to define cardiorespiratory fitness.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  3. To examine the effect of TECH and Standard Care on change in physical activity (Paffenbarger)

    Physical activity (0, 3, 6 months) will be assessed using self-report questionnaire: Paffenbarger Physical Activity Questionnaire (Paffenbarger 1986)

    This questionnaire will provide minute/week data on moderate-to-vigorous physical activity performed with walking, stair climbing, and other recreational/fitness activities.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  4. To examine the effect of TECH and Standard Care on change in physical activity (GPAQ)

    Physical activity (0, 3, 6 months) will be assessed using self-report questionnaire: Global Physical Activity Questionnaire (GPAQ)

    This questionnaire will provide minute/week data on occupational, household, leisure and recreational, and transportation physical activities.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  5. To examine the effect of TECH and Standard Care on change in physical activity (objective monitor)

    Physical activity (0, 3, 6 months) will be assessed using an objective physical activity monitor: Sensewear Pro Armband

    This monitor (worn for 7 consecutive days) will provide minute/week data on sedentary, light, and moderate-to-vigorous physical activity.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  6. To examine the effect of TECH and Standard Care on change in sedentary behavior.

    Sedentary Behavior (0, 3, 6 months) will be assessed using self-report questionnaire: Sedentary Behavior Questionnaire

    This questionnaire will provide data on total time spent in sedentary activities on week and weekend days.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  7. To examine the effect of TECH and Standard Care on change in dietary intake.

    The Block Food Frequency Questionnaire will be used to assess the usual frequency of specific foods and typical portion sizes.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  8. To examine the effect of TECH and Standard Care on change in eating behavior.

    The Eating Behavior Inventory will be used to assess eating behaviors and behaviors that may be related to successful weight loss such as self-monitoring of intake, refusing food, shopping practices, and emotional eating.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  9. To examine the effect of TECH and Standard Care on change in exercise barriers.

    The Exercise Outcome, Expectations and Barriers questionnaire will be used to assess physical activity and exercise engagement and barriers.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  10. To examine the effect of TECH and Standard Care on change in physical activity self-efficacy.

    The Physical Activity Self-Efficacy questionnaire will be used to assess the subjects' confidence and self-efficacy for being physically active.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  11. To examine the effect of TECH and Standard Care on change in health perception.

    The SF-36 questionnaire will be used to assess perceptions of their health.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  12. To examine the effect of TECH and Standard Care on change in weight loss and diet expectations and barriers

    The Weight Loss Expectations and Barriers questionnaire will be used to assess perceptions around benefits and difficulties of weight loss and weight management.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  13. To examine the effect of TECH and Standard Care on change in cognitive restraint and disinhibition with eating behaviors

    The 3-Factor Eating/Eating Inventory questionnaire will be used to assess cognitive restraint, disinhibition, and perceived hunger related to eating behaviors.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  14. To examine the effect of TECH and Standard Care on change in body image

    The Multidimensional Body-Self Relations/Body Image Scale questionnaire will be used to assess body image.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  15. To examine the effect of TECH and Standard Care on change in depression symptoms

    The CES-D (short form) will be uses to assess depressive symptoms.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

  16. To examine satisfaction related to technology usage for weight management

    A survey will be administered to determine subject satisfaction related to technology usage during the study and interest in potential continued usage. This will be administered at 6 months to the TECH group only.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period) - collected at 6 months

  17. To conduct analyses to examine the cost and cost effectiveness of TECH and Standard Care interventions.

    Analyses of cost will be broken down by payer, participant, and societal perspectives.

    Payer costs referring to labor (time, wage) plus non-labor (materials, fixed costs, intervention-specific materials) costs.

    Participant costs including Time in minutes (in-person, phone calls), Attendance (transit minutes, inperson attendance), Wage based on BLS average, and Transport (transportation costs).

    Total Social costs will be the sum of Payer and Participant costs.

    Measured: 1 year after bariatric surgery - months 12-18 (6 month intervention period)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Aug 2016 (estimated)
  2. Study startJan 2015
  3. Primary completion29 Apr 2021
  4. Study completion29 Apr 2021

Why it stopped: Unable to recruit

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02867696
Sponsor's protocol ID
PRO14060446
Status last verified
Mar 2020
First submitted
5 May 2016
Last updated
10 Aug 2021
Results posted
No
Data monitoring committee
No
Individual data sharing
Undecided: It is not known at this time if data will be shared at the conclusion of the project.

Questions about this trial

What is this clinical trial studying?

A study testing Technology-based Intervention (TECH) in people with Motor Activity and Weight Loss, run by University of Pittsburgh at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 10 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Unable to recruit). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To examine the effect of applying a minimal contact technology-based intervention (TECH) at 1-year post-bariatric surgery on weight change compared to Standard Care over the subsequent 6 months. (time frame: 1 year after bariatric surgery - months 12-18 (6 month intervention period)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Aug 2021; AzTrials last refreshed its copy on 29 Oct 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in