Efficacité de l'éducation par rapport à l'éducation plus l'apport hydrique prescrit sur l'état d'hydratation chez les athlètes du secondaire
Sports science testing by investigators at Gatorade Sports Science Institute has revealed that many athletes arrive at practice with a high urine specific gravity indicating they are hypohydrated. Though the data showed that most athletes don't lose more than 2% of their body weight in sweat during a training session, it is not known what the cumulative effects of living and training in a hot environment are over the course of a week. Previous research has indicated that prescribing fluid intake is more effective than education in improving drinking behavior during exercise. No studies to date have compared the impact of fluid intake prescription versus education in adolescent boys and girls playing outdoor and indoor sports.
Comparing sexes and training environment may provide more clarity around potential barriers and challenges to proper hydration for each environment.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
This study will implement a parallel design with 4 sports team groups: 1) Indoor girls, 2) Indoor boys, 3) Outdoor girls, and 4) Outdoor boys. Each group of 36 per groups will be randomized into 1 of 3 conditions: 1) control (no intervention), 2) hydration education intervention, 3) prescribed hydration and education intervention. Athletes will be observed for three practices per week for 2 weeks. Practices are separated by at least 48 hours.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
-
Florida
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Bradenton, Florida, États-Unis, 34210
- Gatorade Sports Science Institute (GSSI) at IMG Sports Academy
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Females and males between the ages of 13-19 years old
- Non-smoker
- Currently enrolled in the IMG sports program
- Able to give verbal and written informed consent for participation as well as obtain parental consent if <18 years of age
- Must be fluent in English reading, writing, and speaking
- Parental permission
Exclusion Criteria:
- Expulsion from school for any reason
- Leaving the IMG sports program
- Pregnant or planning to become pregnant
- Illness or injury that impacts sport participation or fluid balance
- Taking any medication that impacts fluid balance
- Participation in a clinical trial within past 30 days
- Participation in any PepsiCo trial within past 6 months
- Any condition the study investigator believes would interfere with eligibility following the study protocol, effect the study results, or put the subject at undue risk
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Aucune intervention: Control
No hydration education or fluid prescription. Pre-practice urine specific gravity (USG), pre- and post-practice body mass, thirst scale measures. Fluid intake during practice (whatever the team is drinking) . |
|
|
Expérimental: Hydration Education between Week 1 and Week 2
In-depth education session regarding the effects of dehydration, the performance benefits of proper hydration, and how to properly hydrate before, during, and after activity. Pre-practice urine specific gravity (USG), pre- and post-practice body mass, thirst scale measures. Fluid intake during practice (whatever the team is drinking). |
30-60 minutes |
|
Expérimental: Hydration Education between Week 1 and Week 2 plus Prescribed Hydration Week 2
In-depth education session regarding the effects of dehydration, the performance benefits of proper hydration, and how to properly hydrate before, during, and after activity. Pre-practice urine specific gravity (USG), pre- and post-practice body mass, thirst scale measures. Provided a standard amount of bottled water to drink the evening prior (1 liter) and in the two hours before practice (20 oz). Fluid intake will be recorded in an intake log. Subjects will be permitted to eat or drink whatever they like in addition to the prescribed fluid. Fluid intake during practice (whatever the team is drinking). |
30-60 minutes Prescribed amount of bottled water the evening prior and 2 hours prior to team practice |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
urine specific gravity (USG).
Délai: Pre-practice x 3 practices in Week 1 and 3 practices in Week 2
|
Assessed using hand-held refractometer, units recorded to the nearest 0.001 |
Pre-practice x 3 practices in Week 1 and 3 practices in Week 2
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Body weight
Délai: Change from pre-practice to post-practice x 3 practices in Week 1 and 3 practices in Week 2
|
Assessed using Tanita portable scale, units recorded to the nearest 0.01 kg |
Change from pre-practice to post-practice x 3 practices in Week 1 and 3 practices in Week 2
|
|
Fluid intake Week 2 (measured for Prescription Group only)
Délai: Intake from evening before through post-practice x 3 practices in Week 2
|
Assessed using beverage weight scale. Units recorded to the nearest 1 ml |
Intake from evening before through post-practice x 3 practices in Week 2
|
|
Thirst questionnaire
Délai: Change from pre-practice to post-practice x 3 practices in Week 1 and 3 practices in Week 2
|
6 items (thirst, pleasure to drink now, mouth feel, taste, stomach fullness, stomach sickness) each anchored from not at all to very, each on a 100 mm scale. |
Change from pre-practice to post-practice x 3 practices in Week 1 and 3 practices in Week 2
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Kris Osterberg, PhD, RD, PepsiCo R&D Life Sciences, Sports Science
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
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 (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Processus pathologiques
- Maladies métaboliques
- Déséquilibre eau-électrolyte
- Conditions pathologiques, signes et symptômes
- Maladies nutritionnelles et métaboliques
- Déshydratation
- Activité motrice
- Comportement
- Produits chimiques inorganiques
- Anions
- Ions
- Électrolytes
- Hydroxydes
- Alcalies
- Oxydes
- Composés d'oxygène
- Eau
Autres numéros d'identification d'étude
- PEP-2406
Plan pour les données individuelles des participants (IPD)
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Informations sur les médicaments et les dispositifs, documents d'étude
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