高校生アスリートの水分補給状態に対する教育と教育プラス処方水分摂取の有効性
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.
調査の概要
詳細な説明
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.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
-
-
Florida
-
Bradenton、Florida、アメリカ、34210
- Gatorade Sports Science Institute (GSSI) at IMG Sports Academy
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：基礎科学
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
介入なし：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) . |
|
|
実験的：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 |
|
実験的：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 |
この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
urine specific gravity (USG).
時間枠：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
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Body weight
時間枠：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)
時間枠：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
時間枠：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
|
協力者と研究者
スポンサー
捜査官
- 主任研究者：Kris Osterberg, PhD, RD、PepsiCo R&D Life Sciences, Sports Science
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- PEP-2406
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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