Effects of Unilateral Compound Training on Lower-Limb Strength Asymmetry and Athletic Performance in Female Handball Players (UCT-HB)
Effects of a Six-Week Unilateral Compound Training Program on Lower-Limb Strength Asymmetry and Athletic Performance in Competitive Female Handball Players: A Randomized Controlled Trial
調査の概要
詳細な説明
emale handball requires repeated sprinting, jumping, rapid changes of direction, and unilateral movements that may contribute to the development of lower-limb strength asymmetries. Such asymmetries have been associated with impaired athletic performance and an increased risk of injury. Although unilateral resistance and plyometric exercises have shown beneficial effects individually, evidence regarding the effectiveness of unilateral compound training in female handball players remains limited.
This randomized controlled trial aimed to evaluate the effects of a six-week unilateral compound training program on lower-limb strength asymmetry, isokinetic knee extensor and flexor strength, hamstring-to-quadriceps ratios, body composition, sprint performance, change-of-direction ability, countermovement jump performance, and single-leg jump performance in competitive female handball players.
Thirty competitive female handball players were randomly assigned to an experimental group or a control group. The experimental group completed unilateral resistance and plyometric exercises three times per week for six weeks in addition to regular handball training, whereas the control group continued regular handball training only. Outcome measures were assessed before and after the intervention using standardized laboratory procedures. The findings of this study are expected to provide evidence regarding the effectiveness of unilateral compound training for reducing lower-limb asymmetry and improving sport-specific performance in female handball athletes.
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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Gaziantep、トルコ（Türkiye）、27310
- Gaziantep University, Faculty of Sport Sciences
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参加基準
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
説明
Inclusion Criteria:
- Female handball players aged 18-25 years.
- Competing in the Turkish Women's 2nd Handball League.
- Regular participation in team training (4 sessions/week) and official matches.
- Voluntary participation with written informed consent.
Exclusion Criteria:
- Current musculoskeletal injury or pain preventing participation in training.
- History of lower-limb surgery within the previous 12 months.
- Neurological, cardiovascular, or other medical conditions affecting exercise participation.
- Failure to complete the intervention or assessment procedures.
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：他の
- 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：Experimental
Participants received a six-week unilateral compound training program three times per week in addition to their regular handball training.
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Participants in the experimental group completed a supervised unilateral compound training program three times per week for six weeks in addition to their regular handball training.
The intervention consisted of progressive unilateral resistance and plyometric exercises designed to improve lower-limb strength asymmetry, isokinetic muscle strength, neuromuscular performance, sprint performance, change-of-direction ability, and jump performance.
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介入なし：Control
Participants continued their regular handball training without additional unilateral compound training.
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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 |
|---|---|---|
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Lower-Limb Strength Asymmetry
時間枠：Baseline and immediately after the 6-week intervention
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Lower-limb strength asymmetry was assessed using isokinetic dynamometry before and after the intervention.
Changes in asymmetry between the dominant and non-dominant lower limbs were compared between the experimental and control groups.
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Baseline and immediately after the 6-week intervention
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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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Isokinetic Knee Extensor Strength
時間枠：Baseline and immediately after the 6-week intervention
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Peak torque of the knee extensor muscles measured using an isokinetic dynamometer before and after the intervention.
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Baseline and immediately after the 6-week intervention
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Isokinetic Knee Flexor Strength
時間枠：Baseline and immediately after the 6-week intervention
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Peak torque of the knee flexor muscles measured using an isokinetic dynamometer.
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Baseline and immediately after the 6-week intervention
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Hamstring-to-Quadriceps Ratio
時間枠：Baseline and immediately after the 6-week intervention
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Hamstring-to-quadriceps strength ratio calculated from isokinetic knee muscle strength measurements.
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Baseline and immediately after the 6-week intervention
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20-m Sprint Performance
時間枠：Baseline and immediately after the 6-week intervention
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Sprint time measured over 20 meters.
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Baseline and immediately after the 6-week intervention
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Change-of-Direction Performance
時間枠：Baseline and immediately after the 6-week intervention
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Change-of-direction performance assessed using the agility test employed in the study protocol.
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Baseline and immediately after the 6-week intervention
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Countermovement Jump Height
時間枠：Baseline and immediately after the 6-week intervention
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Vertical jump height assessed using the countermovement jump test.
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Baseline and immediately after the 6-week intervention
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協力者と研究者
スポンサー
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
その他の研究ID番号
- 2025-080 (Turkish Medicines and Medical Devices Agency (TITCK))
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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