High-intensity Interval Training on Cardiorespiratory Fitness in Overweight Women
Effect of Low-volume High-intensity Interval Training on Cardiorespiratory Fitness and Total Body Fat in Overweight Women
High-intensity interval training (HIIT) is currently considered one of the most effective strategies to improved cardiorespiratory fitness, which is recognized as a protective factor for cardiovascular diseases and metabolic diseases such as overweight and obesity. However, current evidence is still limited and requires clarity (frequency, time per session and intensity) regarding to greater increases attributed to HIIT.
The aim of this study is to compare the effect of a low-volume high-intensity interval training versus a moderate-intensity continuous exercise on maximal oxygen consumption in overweight women 18 to 44 years old.
調査の概要
状態
条件
詳細な説明
Thirty-six women will be randomly assigned to one of two aerobic exercise on a real-life setting supervised for a physical activity instructor. The interventions will performed three times a week for ten-weeks (on alternate days).
The first two weeks will correspond to the conditioning period (30 minutes between 55-65% of maximum heart rate (HRmax). From week three, 18 participants will perform 30 minutes of continuous exercise at an intensity between 65-75 % of HRmax, and the remaining 18 will complete 21.5 minutes of interval exercise at an intensity between 90-95% of HRmax, with recoveries between 50-55% of HRmax.
All Participants will be evaluated to measure their maximal oxygen consumption, total body fat, waist circumference, body mass index, systolic blood pressure, diastolic blood pressure, prior to start the interventions and at the end of the program (week 11).
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
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-
Antioquia
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Medellín、Antioquia、コロンビア
- Universidad de Antioquia
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-
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:
- Overweight (≥ 25 kg/m-2) women 18 to 44 years.
- Healthy volunteers.
- Perform ≤ 600 Met/min/week.
Exclusion Criteria:
- Perform high-intensity interval exercise in the last six month.
- Smoker.
- History of asthma.
- History of diabetes.
- History of hypertension.
- History of cardiovascular disease.
- History of coronary heart disease.
- Arrhythmias.
- Personal history of surgical procedures in the last three months
- Uncontrolled non-communicable diseases
- Under medical treatment with anticoagulants, beta-blockers, calcium antagonists, bronchodilators, and/or steroids.
- Psychological, neuromotor and/or osteo-muscular conditions that may affect participation in an exercise program.
- Psychoactive drug abuse.
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：処理
- 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 |
|---|---|
|
実験的：高強度インターバルトレーニング
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21.5 minutes of high-intensity interval exercise at an intensity between 90-95 of HRmax (15x30 s), with recoveries at 50-60% of HRmax (14x60 s).
24 sessions, 3x weekly of walking and running outdoors on a sports field in a supervised manner.
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|
アクティブコンパレータ：Moderate-intensity continuous exercise
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30 minutes of continuous exercise at an intensity between 65-75% of HRmax.
24 sessions, 3x weekly of walking and jogging outdoors on a sports field in a supervised manner
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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 |
|---|---|---|
|
Change in maximal oxygen consumption
時間枠：Baseline and after 10 weeks
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Maximal oxygen consumption will be obtained using a graded exercise test on a treadmill (Trackmaster® model TMX 425C) using a portable K4b2 gas analyzer (Cosmed Inc., IL, USA)
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Baseline and after 10 weeks
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change in total body fat
時間枠：Baseline and after 10 weeks
|
Total body fat will be obtained using an Omron® HBF-510 (Omron Healthcare, Inc. Bannockburn, IL, USA) bioelectrical impedance machine.
|
Baseline and after 10 weeks
|
協力者と研究者
スポンサー
出版物と役立つリンク
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
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。