The Comparison of a Technology-Based System and an In-Person Behavioral Weight Loss Intervention
4 augusti 2015 uppdaterad av: John M. Jakicic, PhD
The primary aim of this study is to compare the changes in body weight between a technology-based system, an in-person behavioral weight loss intervention, and a combination of both during a 12 month behavioral weight loss intervention in adults.
Sedentary, healthy overweight and obese adults will be recruited to participate.
Assessments will be conducted at 0, 6, and 12 months.
This is a randomized trial in which participants will be randomized to one of three groups: standard behavioral weight loss (SBWL), standard behavioral weight loss plus technology (SBWL+TECH), and technology alone alone (TECH).
Studieöversikt
Status
Avslutad
Betingelser
Studietyp
Interventionell
Inskrivning (Faktisk)
51
Fas
- Fas 2
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
-
-
Pennsylvania
-
Pittsburgh, Pennsylvania, Förenta staterna, 15260
- University of Pittsburgh
-
-
Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
18 år till 55 år (Vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
Inclusion Criteria:
- ages of 21-55 years
- Body mass index (BMI) between 25-39.9 kg/m2
Exclusion Criteria:
- Currently pregnant, pregnant in the last 6 months, or plan on becoming pregnant in the next 6 months.
- Currently participating in regular exercise for over 60 minutes/week.
- Taking any medications that affect body weight or metabolism (e.g. synthroid).
- Have any physical limitations that would prevent exercise.
- Currently being treated for coronary heart disease, diabetes mellitus, hypertension, or cancer.
- Have a history of myocardial infarction or other heart-related surgeries.
- Have a resting systolic blood pressure > 150 mmHg or diastolic blood pressure of > 100 mmHg or currently taking any medications that affect blood pressure or heart rate (e.g. beta blockers).
- Currently enrolled in a commercial weight loss program, participating in another weight loss study, or in a weight loss study in the last 12 months.
- Have lost > 5% of current body weight in the past 6 months.
- Currently being treated for any psychological problems or taking any psychotropic medication.
- Currently do not have access to a computer and the Internet that can be used for this study. This requires a PC computer, the ability to load software for the technology system, an existing internet connection provided by the participant, and a dedicated USB port to allow the armband from the technology system to be connected to the computer for the download of information.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Experimentell: Standard weight loss intervention
|
In-person weight loss sessions, dietary intake prescription of 1200-1500 kcal per day, exercise progressing to 300 minutes per week.
|
|
Experimentell: Standard weight loss intervention plus technology
|
In-person weight loss sessions, dietary intake prescription of 1200-1500 kcal per day, exercise progressing to 300 minutes per week, plus technology to provide real-time feedback on energy expenditure, plus a website to log dietary intake.
|
|
Experimentell: Technology only
|
One intervention telephone call per month, dietary intake prescription of 1200-1500 kcal per day, exercise progressing to 300 minutes per week, plus technology to provide real-time feedback on energy expenditure, plus a website to log dietary intake.
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
weight
Tidsram: change from 0 to 6 months
|
Body weight will be assessed on a digital scale to assess change in body weight over the intervention period.
|
change from 0 to 6 months
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
cardiorespiratory fitness
Tidsram: 0, 6, 12, months
|
A graded exercise test on a treadmill along with indirect calorimetry will be used to measure cardiorespiratory fitness.
This will provide a measure of oxygen consumption and metabolic equivalents of work at the time of test termination.
|
0, 6, 12, months
|
|
body composition
Tidsram: 0, 6, 12 months
|
Body composition will be assessed using dual energy X-ray absorptiometry (DXA).
This will provide a measure of lean body mass, fat mass, bone mineral content, and percent body fat.
|
0, 6, 12 months
|
|
physical activity
Tidsram: 0, 6, 12 months
|
A questionnaire and a portable device worn on the upper arm will be used to measure and quantify energy expenditure from physical activity.
|
0, 6, 12 months
|
|
dietary intake
Tidsram: 0, 6, 12 months
|
A questionnaire will be used to assess self-reported food intake.
This will be used to estimate calories, dietary fat, protein, and carbohydrates consumed.
|
0, 6, 12 months
|
|
psychosocial and behavioral measures
Tidsram: 0, 6, 12 months
|
Questionnaires will be used to assess self-efficacy for weight loss and physical activity, barriers to physical activity and weight loss, expected outcomes resulting from physical activity and weight loss, perceived body image, depressive symptomotology, weight history, dietary disinhibition and restraint, and behaviors typically related to weight loss (e.g., self-weighing, meal planning, etc.).
|
0, 6, 12 months
|
|
Weight change
Tidsram: weight at 0, 6, and 12 months
|
Body weight measured on a digital scale
|
weight at 0, 6, and 12 months
|
Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Sponsor
Utredare
- Studierektor: Steve Verba, MS, University of Pittsburgh
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 augusti 2009
Primärt slutförande (Faktisk)
1 september 2010
Avslutad studie (Faktisk)
1 september 2010
Studieregistreringsdatum
Först inskickad
25 maj 2010
Först inskickad som uppfyllde QC-kriterierna
28 maj 2010
Första postat (Uppskatta)
2 juni 2010
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
5 augusti 2015
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
4 augusti 2015
Senast verifierad
1 augusti 2015
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- PRO09040121
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .