Resistance Training With Milk Supplementation in Adolescents
Effects of Resistance Training With Milk Supplementation on Body Composition in Middle School Children
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Anticipé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
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Kansas
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Kansas City, Kansas, États-Unis, 66160
- University of Kansas Medical Center
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Middle school student (Grades 7-9)
- BMI > 50th percentile - < 98th percentile
- No resistance training in the past 6 months.
- Endurance training (running, cycling, swimming, walking for exercise etc) not more than 3 hr per week, as assessed by screening questionnaire.
- Weight stable (+/- 4.5kg) for 3 months prior to intake.
- Willing to be randomized to one of the 3 study groups.
Exclusion criteria:
- Individuals with contraindications based on review of health history by the investigators, including blood pressure, lipid profile, glucose, and insulin, and abnormal values obtained in a 24 item blood panel, such as electrolytes, liver function, etc. These individuals will be referred to their primary care physician for further evaluation and to obtain permission to participate. The following cut-points will be used for cardiovascular and metabolic parameters: dyslipidemia- lipids (cholesterol > 240 mg/L; triglycerides >500 mg/L), hypertension- systolic blood pressure > 140 mmHG or diastolic blood pressure > 90 mmHG, diabetes - fasting glucose from venous plasma fasting glucose > 126 mg/dL.
- Medications that could affect metabolism such as cardiac drugs, thyroid, steroids, insulin, beta blockers, SSRI's, birth control pills, etc.
- Current use of smoking/tobacco products or initiation of smoking/tobacco during the study.
- Eating disorders as determined by screening questionnaire
- Adherence to specialized diet regimes, vegetarian, macrobiotic, etc.
- Food allergies, particularly lactose intolerance.
- Treatment for psychiatric illness of chemical dependency within the previous 6 months.
- Pregnancy or lactation.
- Dietary intake of ≤800 mg calcium and ≤1 servings of milk per day as assessed from 3 -24 hr diet recalls (2 week-days, 1 week-end day) conducted at baseline.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Comparateur placebo: Eau
|
On resistance training days, the RT+ milk group will receive milk (280kcals) immediately following exercise and milk at another time during the day. The RT+ juice group will receive fruit juice immediately following resistance exercise and juice again another time during the day. The RT+ water group will receive water following resistance exercise and water at another time during the day. On non training days, students in the RT+ milk group will receive milk. Students in the RT+ juice group will receive juice. The RT+ water group will receive water during the school day. On non-RT days, the total volume of milk, juice, or water will be split into two administration times during the school day. |
|
Expérimental: Lait
|
On resistance training days, the RT+ milk group will receive milk (280kcals) immediately following exercise and milk at another time during the day. The RT+ juice group will receive fruit juice immediately following resistance exercise and juice again another time during the day. The RT+ water group will receive water following resistance exercise and water at another time during the day. On non training days, students in the RT+ milk group will receive milk. Students in the RT+ juice group will receive juice. The RT+ water group will receive water during the school day. On non-RT days, the total volume of milk, juice, or water will be split into two administration times during the school day. |
|
Expérimental: Juice
|
On resistance training days, the RT+ milk group will receive milk (280kcals) immediately following exercise and milk at another time during the day. The RT+ juice group will receive fruit juice immediately following resistance exercise and juice again another time during the day. The RT+ water group will receive water following resistance exercise and water at another time during the day. On non training days, students in the RT+ milk group will receive milk. Students in the RT+ juice group will receive juice. The RT+ water group will receive water during the school day. On non-RT days, the total volume of milk, juice, or water will be split into two administration times during the school day. |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Body Composition
Délai: 6 months
|
Changes in body composition will be evaluated by measuring the change in percent body fat, total fat mass, and total lean mass by DEXA
|
6 months
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Blood lipids, glucose, and insulin
Délai: 6 months
|
Blood samples will be collected for the purpose of measuring triglycerides, total cholesterol, HDL-cholesterol, glucose and insulin.
|
6 months
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Les enquêteurs
- Chercheur principal: Joseph Donnelly, Ed.D, University of Kansas
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Autres numéros d'identification d'étude
- 11935 (Identificateur de registre: DAIDS ES Registry Number)
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