Efficacia dell'educazione rispetto all'istruzione più assunzione di liquidi prescritta sullo stato di idratazione negli atleti delle scuole superiori
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.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
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.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
Florida
-
Bradenton, Florida, Stati Uniti, 34210
- Gatorade Sports Science Institute (GSSI) at IMG Sports Academy
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
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
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Scienza basilare
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Nessun intervento: 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) . |
|
|
Sperimentale: 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 |
|
Sperimentale: 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 |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
urine specific gravity (USG).
Lasso di tempo: 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
|
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Body weight
Lasso di tempo: 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)
Lasso di tempo: 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
Lasso di tempo: 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
|
Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Kris Osterberg, PhD, RD, PepsiCo R&D Life Sciences, Sports Science
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Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- PEP-2406
Piano per i dati dei singoli partecipanti (IPD)
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