The Effect of Physical Activity Intervention Flexibility on the Time Course of Changes in Body Composition and Metabolism
The investigators goal is to optimise physical activity interventions to help previously inactive women improve their body shape and composition. Many people seeking to lose weight or improve body composition initiate an exercise programme. The most common recommendation of an exercise intervention for someone attempting to manage their weight, has been to 'prescribe' the recommended 150 minutes of exercise per week (World Health Organisation), often using one mode of exercise. An alternative approach might be to offer a portfolio of activities, from which the exerciser can pick and choose, to facilitate greater amounts of physical activity. The problem with this is how do you account for the different intensities of walking, washing the car, playing badminton, cycling, jogging, etc? In this study, the investigators will try to overcome this barrier by allocating a number of "physical activity points" to each activity. Using this physical activity points system, participants will be provided with a points target that they can meet using any combination of activities.
The investigators research aim is therefore to compare this points-based system against the traditional 5x30minute prescription (and sedentary control) for their ability to help previously inactive women to drop a dress size, increase fat burning, positively change their body composition and tone their tummy.
調査の概要
研究の種類
入学 (予想される)
段階
- 適用できない
連絡先と場所
研究場所
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Birmingham、イギリス、B15 2TT
- University of Birmingham, School of Sport, Exercise and Rehabilitation Sciences
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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:
- Female
- Aged 25-50 years old
- Inactive (less than 150 minutes of moderate-intensity aerobic physical activity per week)
- BMI 25-35 kg/m2
- Good general health, as assessed by the School of Sport, Exercise and Rehabilitation Sciences' General Health Questionnaire
- Willing to strictly comply with all study procedures and restrictions
- Willing to participate, as demonstrated by voluntary written informed consent
Exclusion Criteria:
- Positive result from the urine sample pregnancy test
- Currently breast feeding
- Currently participating in another clinical trial deemed to potentially interfere with this study
- Current or recent (within the last 30 days) smoker
- Currently taking prescription or non-prescription medication that may interfere with metabolism (including beta-blockers, insulin, bronchodilators, anti-inflammatory agents, thyroxine and medication/supplements that in the opinion of the investigators may affect metabolism).
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 |
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実験的：Prescribed exercise
Participants will be asked to choose one activity and stick to it for the duration of the intervention.
Participants will be able to choose between brisk walking/slow jogging or cycling.
The intervention will require the completion of 30 minutes of chosen activity on 5 days of the week, which will be recorded in a physical activity diary.
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実験的：Points-based physical activity
Participants will be asked to achieve a pre-set, individualised points target for physical activity each week.
Points are acquired through the completion of a minimum 10 minutes of activity, choosing from the extensive list of activities provided; for example, 10 minutes of jogging achieves 4.5 points, whereas 10 minutes of washing a car achieves 1.5 points.
The target will be 35-40 points per week, which equates to approximately 6 points per day.
Any combination of activity, duration and frequency can be selected.
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介入なし：Waiting list control
Participants will be asked to maintain their normal activities and diet.
They will be added to a waiting list to receive either exercise intervention after completing the 24-week trial period, so that they do not miss out on the opportunity to receive the exercise intervention.
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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 |
時間枠 |
|---|---|
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Change in body composition (fat and fat-free mass in kg)
時間枠：4 weeks, 12 weeks and 24 weeks
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4 weeks, 12 weeks and 24 weeks
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
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Perceived body shape
時間枠：4 weeks, 12 weeks and 24 weeks
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4 weeks, 12 weeks and 24 weeks
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Maximal aerobic capacity
時間枠：4 weeks, 12 weeks, 24 weeks
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4 weeks, 12 weeks, 24 weeks
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Fat oxidation rates
時間枠：4 weeks, 12 weeks and 24 weeks
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4 weeks, 12 weeks and 24 weeks
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Body tone
時間枠：4 weeks, 12 weeks, 24 weeks
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4 weeks, 12 weeks, 24 weeks
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その他の成果指標
結果測定 |
時間枠 |
|---|---|
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Blood-borne markers of metabolic health
時間枠：4 weeks, 12 weeks, 24 weeks
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4 weeks, 12 weeks, 24 weeks
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Psychological measures relating to perceived body image
時間枠：4 weeks, 12 weeks, 24 weeks
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4 weeks, 12 weeks, 24 weeks
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Psychological measures of attitudes towards exercise and physical activity
時間枠：4 weeks, 12 weeks, 24 weeks
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4 weeks, 12 weeks, 24 weeks
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協力者と研究者
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
一次修了 (予想される)
研究の完了 (予想される)
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 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
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。