Full-Body and Lower-Limb Stretching on Explosive Power and Agility (static stretch)
Do Stretching Variations Affect Performance? A Comparison of Full-Body and Lower-Limb Stretching on Explosive Power and Agility Reaction Time
調査の概要
状態
状態
条件
条件
詳細な説明
Stretching exercise is one of the most commonly used strategies for pre-exercise warm-up and post-exercise recovery, and its physiological effects involve muscle flexibility, neuromuscular control, and joint range of motion. However, empirical evidence regarding the acute effects of different stretching scopes on jumping ability and agility remains relatively limited, as most previous studies have focused on individual muscles or localized muscle groups. Therefore, the present study aims to investigate the effects of static stretching involving different body regions, specifically whole-body and lower-limb stretching, on explosive performance and agility.
A pretest-intervention-posttest design will be adopted. A total of 60 healthy university students (30 males and 30 females) are expected to be recruited and randomly assigned to a whole-body stretching group (10 males and 10 females), a lower-limb stretching group (10 males and 10 females), or a control group (10 males and 10 females). The duration of the static stretching intervention will be standardized to 14 minutes. The whole-body stretching group will perform stretching exercises targeting the major muscle groups of the upper limbs, trunk, and lower limbs, whereas the lower-limb stretching group will focus on key lower-limb muscle groups, including the quadriceps, hamstrings, and gastrocnemius. The control group will remain seated quietly for 14 minutes without performing any stretching exercise.
Participants will undergo a series of physical performance assessments before and after the intervention. Jump performance will be evaluated using the standing long jump, squat jump, countermovement jump, and drop jump. All jump-related data will be recorded using a Vmaxpro wireless inertial measurement sensor (BM Sports Technology GmbH, Germany), providing key parameters such as jump height, peak velocity, and peak power. Agility will be assessed using the T-Test and Hexagon Agility Test.
It is hypothesized that excessive static stretching may cause an acute reduction in muscular strength and explosive performance. The whole-body stretching group may demonstrate only a slight decrease in jump performance while maintaining relatively stable agility performance, whereas the lower-limb stretching group may exhibit changes in both jump and agility performance. The findings of this study are expected to clarify the relationship between the scope of static stretching and subsequent physical performance and may provide evidence to support the design of pre-exercise warm-up strategies and physical therapy interventions.
研究の種類
研究の種類
入学 (推定)
入学
連絡先と場所
研究連絡先
研究連絡先
- 名前:Yueh-Ling Hsieh, PhD
- 電話番号:886-0929122977
- メール:sherrie@mail.cmu.edu.tw
研究連絡先のバックアップ
- 名前:Ling-Ling Tang, BS
- 電話番号:886-0979087177
- メール:l0979087177@gmail.com
研究場所
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Beitun
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Taichung、Beitun、台湾、406040
- 募集
- Department of Physical Therapy, China Medical University
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コンタクト:
- Yueh-Ling Hsieh, PhD
- 電話番号:0929122977
- メール:sherrie@mail.cmu.edu.tw
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コンタクト:
- Ling-Ling Tang, BS
- 電話番号:0979087177
- メール:l0979087177@gmail.com
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主任研究者:
- Yueh-Ling Hsieh, PhD
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参加基準
適格基準
適格基準
就学可能な年齢
- 大人
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
Healthy university students aged 20-30 years Regularly engaged in physical activity Not specialized in weightlifting or jumping disciplines Able to understand the study procedures and provide written informed consent
Exclusion Criteria:
Acute lower-limb or low-back injury within the previous three months Fracture, sprain, or muscle strain within the previous three months Related surgery or medical treatment within the previous three months Pain, swelling, inflammation, or restricted movement on the day of testing Any condition that may compromise exercise safety Physician-advised restriction from moderate- to high-intensity exercise Cardiovascular disease or other exercise contraindications Neurological, musculoskeletal, or balance impairments that may affect test performance
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
グループ/コホートの数
コホートと介入
グループ/コホートグループ/コホート |
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Whole-Body Stretching
Healthy university students who performed the whole-body static stretching protocol.
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Lower-Limb Stretching Group
Healthy university students who performed the lower-limb static stretching protocol.
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Non-Stretching Control Group
Healthy university students who remained seated quietly without performing stretching exercises.
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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
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
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Hexagon Agility Test Completion Time
時間枠:From baseline to immediately after the 15-min intervention
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Agility performance will be assessed using the Hexagon Agility Test.
Participants will complete two valid trials, and the mean completion time will be used for analysis.
Completion time will be recorded in seconds, with a shorter time indicating better agility performance.
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From baseline to immediately after the 15-min intervention
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T-Test Agility Test Completion Time
時間枠:From baseline to immediately after the 15-min intervention
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Agility performance will be assessed using the T-Test Agility Test.
Participants will complete two trials, and completion time will be recorded in seconds using a photocell timing gate system.
The mean completion time of the two trials will be used for analysis, with lower values indicating better agility performance.
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From baseline to immediately after the 15-min intervention
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Squat jump height
時間枠:From baseline to immediately after the 15-min intervention
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Squat jump performance will be assessed using a wireless inertial measurement sensor.
Participants will perform two valid squat jump trials, and the mean jump height will be used for analysis.
Jump height will be recorded in centimeters, with higher values indicating better jump performance.
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From baseline to immediately after the 15-min intervention
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Countermovement Jump Height
時間枠:From baseline to immediately after the 15-min intervention
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Countermovement jump performance will be assessed using a wireless inertial measurement sensor.
Participants will perform two valid countermovement jump trials, and the mean jump height will be used for analysis.
Jump height will be recorded in centimeters, with higher values indicating better jump performance.
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From baseline to immediately after the 15-min intervention
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Drop Jump Reactive Strength Index
時間枠:From baseline to immediately after the 15-min intervention
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Reactive strength during the drop jump will be assessed using a wireless inertial measurement sensor.
The reactive strength index will be calculated as jump height divided by ground contact time.
Participants will perform two valid trials, and the mean reactive strength index will be used for analysis.
Values will be expressed in meters per second, with higher values indicating better reactive strength performance.
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From baseline to immediately after the 15-min intervention
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Standing Long Jump Distance
時間枠:From baseline to immediately after the 15-min intervention
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Horizontal lower-limb explosive performance will be assessed using the standing long jump.
Participants will perform two valid trials, and the mean jump distance will be used for analysis.
Jump distance will be recorded in centimeters, with higher values indicating better performance.
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From baseline to immediately after the 15-min intervention
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協力者と研究者
出版物と役立つリンク
一般刊行物
- Behm DG, Blazevich AJ, Kay AD, McHugh M. Acute effects of muscle stretching on physical performance, range of motion, and injury incidence in healthy active individuals: a systematic review. Appl Physiol Nutr Metab. 2016 Jan;41(1):1-11. doi: 10.1139/apnm-2015-0235. Epub 2015 Dec 8.
- Behm DG, Alizadeh S, Anvar SH, Drury B, Granacher U, Moran J. Non-local Acute Passive Stretching Effects on Range of Motion in Healthy Adults: A Systematic Review with Meta-analysis. Sports Med. 2021 May;51(5):945-959. doi: 10.1007/s40279-020-01422-5. Epub 2021 Jan 18.
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
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
最終確認日
詳しくは
本研究に関する用語
キーワード
その他の研究ID番号
その他の研究ID番号
- CMUH115-REC3-011
- NSTC115-2813-C-039-101-B (その他の助成金/資金番号:National Science and Technology Council)
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?
IPD プランの説明
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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