Flywheel vs Traditional Resistance Training for Change of Direction in Elite Soccer Players (UFRT-COD)
The Effects of Unilateral Flywheel Training and Traditional Resistance Training on Change-of-Direction Performance in Elite Soccer Players: A Randomized Controlled Trial
The purpose of this randomized controlled trial is to compare the effects of unilateral flywheel resistance training and unilateral traditional resistance training on change-of-direction performance in elite male soccer players.
A total of 22 elite soccer players will be randomly assigned to either a flywheel resistance training group or a traditional resistance training group. Both groups will perform supervised training twice per week for 8 weeks in addition to their regular soccer training.
Performance outcomes will include linear sprint tests (10 m and 30 m), pre-planned change-of-direction tests (Pro-agility, T-test, Arrowhead test), and agility tests under no-ball and with-ball conditions (AFL agility test).
The primary outcome is change-of-direction performance assessed by the T-test. Secondary outcomes include direction-specific change-of-direction ability and agility performance.
It is hypothesized that unilateral flywheel resistance training will produce greater improvements in change-of-direction performance compared with traditional resistance training, particularly in tasks involving braking and re-acceleration.
調査の概要
状態
詳細な説明
This study is an exploratory randomized controlled trial designed to investigate the effects of unilateral flywheel resistance training (FRT) compared with unilateral traditional resistance training (TRT) on change-of-direction (COD) performance in elite male soccer players.
Participants are highly trained soccer athletes with at least 8 years of training experience and no recent lower-limb injuries. Following baseline testing, participants are randomly allocated in a 1:1 ratio to either the FRT group or the TRT group.
Both groups perform an 8-week training intervention consisting of two supervised sessions per week. The training exercise is the unilateral Bulgarian split squat, performed with either flywheel inertial resistance (FRT) or barbell loading (TRT). Training volume, frequency, and movement pattern are matched between groups. Load prescription is standardized using mean concentric velocity matching.
Outcome measures are assessed before and after the intervention and include:
- Linear sprint performance (10 m and 30 m)
- Pre-planned change-of-direction performance (Pro-agility test, T-test)
- Direction-specific COD performance (Arrowhead test left and right)
- Agility performance under no-ball and ball conditions (AFL agility test) The primary outcome is T-test performance. Secondary outcomes include Pro-agility, Arrowhead, and AFL agility tests. Exploratory outcomes include linear sprint performance and ball-constrained agility.
The study aims to determine whether eccentric overload provided by flywheel training leads to superior improvements in COD performance compared with traditional resistance training under matched movement conditions.
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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Beijing、中国、100084
- Beijing Sport University
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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:
- Male elite or sub-elite soccer players aged 18-25 years
- Minimum of 3 years of structured soccer training experience
- Currently participating in regular team training (≥3 sessions per week)
- Free from musculoskeletal injury within the past 3 months
- No prior experience with flywheel resistance training
- Provided written informed consent to participate
Exclusion Criteria:
- History of lower-limb surgery within the past 6 months
- Current musculoskeletal pain or injury affecting performance
- Neurological or cardiovascular conditions contraindicating high-intensity exercise
- Participation in additional strength or conditioning programs outside the study
- Inability to complete the full intervention protocol
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：独身
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：Flywheel Resistance Training
Participants perform unilateral flywheel resistance training using a Bulgarian split squat exercise twice per week for 8 weeks in addition to regular soccer training.
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Unilateral flywheel resistance training was performed using a Bulgarian split squat exercise on a flywheel device.
Participants completed 2 training sessions per week for 8 weeks.
Each session consisted of 4 sets of 6 repetitions per leg.
The inertial load was individually selected based on mean concentric velocity matching.
Participants were instructed to perform the concentric phase explosively and the eccentric phase with maximal braking effort.
他の名前：
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アクティブコンパレータ：Traditional Resistance Training
Participants perform unilateral traditional resistance training using a barbell Bulgarian split squat exercise twice per week for 8 weeks in addition to regular soccer training.
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Unilateral traditional resistance training was performed using a barbell Bulgarian split squat exercise.
Participants trained twice per week for 8 weeks.
Each session consisted of 4 sets of 6 repetitions per leg at approximately 80% of one-repetition maximum.
Movement tempo was controlled with an explosive concentric phase and a controlled eccentric phase.
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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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T-test performance (change in completion time, seconds)
時間枠：Baseline and Week 8
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Change in T-test completion time (seconds) from baseline to post-intervention after 8 weeks of training.
The T-test assesses multidirectional change-of-direction ability involving forward sprinting, lateral shuffling, and backward running.
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Baseline and Week 8
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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
キーワード
その他の研究ID番号
- BSU2025611H-FRTCOD
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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