- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT00693511
Circuit Training and Motivational Interviewing to Reduce Type 2 Diabetes in Youth
The overall goal of this project is to examine the physiological and metabolic effects of a 16-week circuit-training (strength training + aerobic activities) program, with and without a behavioral component utilizing motivational interviewing, in 45 overweight Latina adolescent girls (14-18 years of age). This 16-week randomized control study will examine the incremental effects of the following 3 intervention groups on insulin sensitivity, insulin secretion, adiposity, and habitual and ad libitum physical activity:
- Control group (delayed circuit training intervention; n=15)
- Circuit training group (strength + aerobic training; 2 times per week; n=15)
- Circuit training (same as above) + weekly motivational interviewing sessions (n=15)
Specific Aim 1: To examine the effects of a 16-week circuit training program on adiposity, insulin dynamics, other associated hormones and adipocytokines, cardiorespiratory fitness, and muscular strength in overweight Latina adolescent girls. Hypothesis 1: Participation in the circuit-training program will result in significant improvements in both physiological and metabolic outcomes, including: a) body composition as measured by DEXA, b) fat distribution as measured by MRI, c) adipose tissue hormones (e.g. leptin, adiponectin, TNF-α) as measured by fasting blood samples, d) insulin sensitivity and secretion as measured by frequently sampled intravenous tolerance test, e) aerobic fitness as measured by the single stage submaximal treadmill test, and f) increase muscular strength as measured by repetition maximums.
Specific Aim 2: To examine the incremental effects of adding the motivational interviewing sessions to the circuit training on self-selected ad libitum physical activity during a 5-hour observational period, habitual physical activity levels using 7 day accelerometry, and the meanings and motivation to exercise using questionnaires before and after the intervention. Hypothesis 2: The addition of motivational interviewing will encourage and empower participants to be more active outside of the intervention and foster healthy physical activity behaviors in daily life. Improvements in physical activity behaviors will lead to greater improvements in all other health outcomes listed in specific aim 1 compared to circuit training alone and control group.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
-
-
California
-
Los Angeles, California, Verenigde Staten, 90033
- Veronica Atkins Lifestyle Intervention Laboratory
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- At Risk of Overweight and Overweight (age- & sex-specific body mass index ≥ 85th percentile based on CDC BMI growth charts [US Department of Health and Human Services, 2000]. There will not be an upper BMI limit. In our experience, we have had numerous children above the 99th percentile for BMI complete the outcome measures, and this group could benefit greatly from participation.
- Gender & Age: Females from grades 9th to 12th (approximately 14-18 years of age). We chose to study adolescents because pubertal youth will likely possess the requisite hormonal milieu needed to elicit physiologically and metabolic changes in response to resistance and aerobic training. In addition physical activity declines are more pronounced in minority females. By limiting the study to just females, we will retain a more homogenous group. This will eliminate sensitive gender issues related to exercise such as body image concerns, goal setting, and motivations for behavioral changes. To reduce effects of the menstrual cycle, all females will be tested during the follicular phase, while those with irregular/unpredictable menses will be studied at random times.
- Latino origin all four grandparents must be of Hispanic heritage (reported on screening forms). This approach is consistent with all of our previous and ongoing work.
Exclusion Criteria:
- Presently taking medication(s) or diagnosed with any syndrome or disease that could influence physical activity, body composition and fat distribution, or insulin action.
- Previously diagnosed with any major illness since birth (e.g. chronic birth asphyxia, cancer, etc.).
- Children with type 1 and/or type 2 diabetes will be excluded and referred to a physician. Children with impaired glucose tolerance (fasting glucose >100 mg/dL during a fasting blood draw) and/or conditions associated with insulin resistance (e.g. acanthosis nigricans, hypertension, dyslipidemia) will be eligible, as long as they are not receiving treatment and meet other eligibility criteria.
- Children who have any physical, cognitive, or psychological disabilities that would prevent them from participating in an exercise program.
- Currently, or in the past 6 months, involved with any dietary, physical activity or weight loss program.
- Children who live farther than 20 miles away from the GCRC.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
---|---|
Geen tussenkomst: Controle
Geen tussenkomst
|
|
Experimenteel: Circuit Training
Participants received CT exercise training two times per week for approximately 60-90 min per session for 16 wk
|
Circuit Training (aerobic + strength training 2 times per week for 16 weeks)
Andere namen:
|
Experimenteel: Circuit training + motivational interviewing
Participants in the CT + MI group received the same CT classes but also received four individual MI and four group MI sessions throughout the 16-wk program by two trained research staff
|
Circuit training (aerobic + strength training 2 times per week for 16 weeks) + motivational interviewing (4 individual + 4 group sessions)
Andere namen:
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
---|---|
Insulin sensitivity
Tijdsspanne: post intervention (week 16)
|
post intervention (week 16)
|
Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
---|---|
Change in waist circumference
Tijdsspanne: post-intervention (week 16)
|
post-intervention (week 16)
|
Change in subcutaneous abdominal adipose tissue
Tijdsspanne: post-intervention (week 16)
|
post-intervention (week 16)
|
Change in visceral abdominal adipose tissue
Tijdsspanne: post-intervention (week 16)
|
post-intervention (week 16)
|
Medewerkers en onderzoekers
Onderzoekers
- Hoofdonderzoeker: Jaimie N Davis, PhD, RD, University of Southern California
Publicaties en nuttige links
Algemene publicaties
- Davis JN, Gyllenhammer LE, Vanni AA, Meija M, Tung A, Schroeder ET, Spruijt-Metz D, Goran MI. Startup circuit training program reduces metabolic risk in Latino adolescents. Med Sci Sports Exerc. 2011 Nov;43(11):2195-203. doi: 10.1249/MSS.0b013e31821f5d4e.
- Davis JN, Le KA, Walker RW, Vikman S, Spruijt-Metz D, Weigensberg MJ, Allayee H, Goran MI. Increased hepatic fat in overweight Hispanic youth influenced by interaction between genetic variation in PNPLA3 and high dietary carbohydrate and sugar consumption. Am J Clin Nutr. 2010 Dec;92(6):1522-7. doi: 10.3945/ajcn.2010.30185. Epub 2010 Oct 20.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- K01DK078858 (Subsidie/contract van de Amerikaanse NIH)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
Klinische onderzoeken op Obesitas en diabetes type 2
-
University of Trás-os-Montes and Alto DouroVoltooidDiabetes mellitus type 2 | Diabetesgerelateerde complicatiesPortugal
-
Asahi Kasei Pharma CorporationWervingDiabetes mellitus type 2China
-
University of Campania "Luigi Vanvitelli"VoltooidDiabetes mellitus type 2Italië
-
University of LiverpoolAstraZeneca; Clinical Practice Research DatalinkActief, niet wervendDiabetes mellitus type 2Verenigd Koninkrijk
-
Regor Pharmaceuticals Inc.BeëindigdDiabetes mellitus type 2Verenigde Staten
-
Charles Drew University of Medicine and ScienceNational Center for Research Resources (NCRR)Beëindigd
-
Population Health Research InstituteNovo Nordisk A/SVoltooidDiabetes mellitus type 2Canada
-
Northwell HealthPatient-Centered Outcomes Research InstituteVoltooidDiabetes mellitus type 2 | Type 2 diabetesVerenigde Staten
-
Endocrine Research SocietyVoltooidDiabetes mellitus type 2Canada
-
Eli Lilly and CompanyVoltooidDiabetes mellitus type 2China
Klinische onderzoeken op Circuit Training
-
Riphah International UniversityWerving
-
Cardenal Herrera UniversityVoltooid
-
Celal Bayar UniversityVoltooid
-
Celal Bayar UniversityVoltooid
-
Aalborg UniversityWerving
-
Fondazione Don Carlo Gnocchi OnlusWervingMultiple scleroseItalië
-
University of Central LancashireUniversity of HullVoltooidHoge intensiteit interval trainingVerenigd Koninkrijk
-
University of CopenhagenUniversity Hospital, Gentofte, CopenhagenVoltooidLichaamssamenstelling | EchocardiografieDenemarken
-
Riphah International UniversityWervingBasketbal spelersPakistan
-
Riphah International UniversityVoltooidSedentair gedrag | Oude leeftijd; ZwaktePakistan