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Neurocognitive Enrichment During Functional Performance Testing in Chronic Ankle Instability

2026年7月5日 更新者：Büşra Tamgüç、Bahçeşehir University

Acute Effects of Neurocognitively Enriched Functional Performance Testing Conditions on Balance and Functional Performance in Athletes With Chronic Ankle Instability: A Randomized Crossover Study

Chronic ankle instability (CAI) is associated with recurrent ankle sprains, impaired postural control, and reduced functional performance. Traditional functional performance tests are commonly used to assess athletes with CAI; however, these assessments are typically conducted under isolated motor conditions and may not adequately reflect the neurocognitive demands encountered during sports participation.

The aim of this randomized crossover study is to investigate the acute effects of neurocognitively enriched testing conditions on balance and functional performance in athletes with CAI. Participants will perform functional performance tests under four different conditions: standard testing, internal focus of attention, external focus of attention, and cognitive dual-task conditions. Dynamic balance, vertical jump performance, single-leg hop performance, figure-of-8 hop performance, and dual-task cost will be assessed and compared across conditions.

The findings of this study may contribute to the development of more ecologically valid assessment approaches for athletes with CAI and provide insights into the influence of attentional focus and cognitive load on functional performance.

調査の概要

状態

募集

条件

介入・治療

詳細な説明

Chronic ankle instability (CAI) is a common consequence of lateral ankle sprains and is characterized by recurrent episodes of giving way, repeated sprains, impaired sensorimotor control, and persistent functional limitations. Although functional performance tests are widely used to assess readiness for sports participation and return-to-sport status, these assessments are typically performed under isolated motor conditions and may not adequately represent the complex neurocognitive demands encountered during athletic activities.

Recent evidence from motor learning and sports medicine literature suggests that attentional focus strategies and cognitive loading can substantially influence movement performance, postural control, and motor execution. Internal focus of attention directs individuals toward body movements and joint positions, whereas external focus of attention emphasizes movement outcomes and environmental effects. In addition, dual-task paradigms introduce cognitive demands that may alter motor performance by increasing attentional load and competing for cognitive resources. Understanding how these neurocognitive factors influence functional performance may provide valuable information for the assessment and management of athletes with CAI.

The present study aims to examine the acute effects of neurocognitively enriched testing conditions on balance and functional performance in athletes with CAI. By comparing performance under standard testing, internal focus, external focus, and cognitive dual-task conditions, the study seeks to determine whether commonly used functional performance tests are sensitive to variations in attentional focus and cognitive load.

This investigation is expected to contribute to a better understanding of the interaction between cognitive processes and motor performance in athletes with CAI. The findings may support the development of more ecologically valid assessment strategies and provide clinically relevant information for rehabilitation planning, functional evaluation, and return-to-sport decision-making in athletic populations with chronic ankle instability.

研究の種類

介入

入学 (推定)

40

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 子
  • 大人

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Aged between 16 and 25 years.
  • Actively participating as a licensed football, basketball, or volleyball athlete.
  • History of at least one lateral ankle sprain occurring ≥12 months before study participation, associated with pain and/or swelling and resulting in at least one day of restricted physical activity.
  • History of recurrent ankle instability, defined as at least two episodes of giving way during the previous 6 months and/or recurrent ankle sprains.
  • Cumberland Ankle Instability Tool (CAIT) score ≤25.
  • Participating in regular sports training at least 3 times per week.
  • No ankle surgery within the previous 6 months.
  • Able to safely perform all functional performance tests.
  • Willing to undergo assessment of the more symptomatic ankle; in participants with bilateral chronic ankle instability, the ankle with the lower CAIT score will be evaluated.

Exclusion Criteria:

  • Acute ankle sprain within the previous 6 weeks accompanied by significant pain, swelling, or functional limitation.
  • History of major lower-extremity surgery (e.g., knee, hip, or ankle surgery).
  • History of neurological, vestibular, or systemic disorders that may affect balance or motor performance.
  • Visual or cognitive impairments that could interfere with test performance.
  • Lower-extremity injuries other than ankle instability within the previous 6 months that may negatively affect functional performance.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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：ふるい分け
  • 割り当て：ランダム化
  • 介入モデル：クロスオーバー割り当て
  • 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：Standard Testing Condition
Participants perform all functional performance tests under standard testing conditions without attentional focus instructions or additional cognitive tasks. This condition serves as the reference condition for comparison with neurocognitively enriched testing conditions.
行動：Standard Testing Condition
Participants perform functional performance tests under standard testing conditions without attentional focus instructions or additional cognitive tasks. This condition serves as the reference condition for comparison with neurocognitively enriched testing conditions
実験的：Internal Focus of Attention Condition
Participants perform all functional performance tests while receiving internal focus of attention instructions directing attention toward body movements, joint positions, and movement control.
行動：Internal Focus of Attention
Participants perform functional performance tests while receiving internal focus of attention instructions directing attention toward body movements, joint positions, and movement control during task execution.
実験的：External Focus of Attention Condition
Participants perform all functional performance tests while receiving external focus of attention instructions directing attention toward movement outcomes and environmental targets.
行動：External Focus of Attention
Participants perform functional performance tests while receiving external focus of attention instructions directing attention toward movement outcomes and environmental targets during task execution.
実験的：Cognitive Dual-Task Condition
Participants perform all functional performance tests while simultaneously completing a cognitive task involving backward repetition of number sequences to increase cognitive load
行動：Cognitive Dual-Task Condition
Participants perform functional performance tests while simultaneously completing a cognitive task involving backward repetition of number sequences, increasing cognitive load during motor performance.

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
Dynamic Balance Performance
時間枠：Day 1 (during the study assessment session)
Dynamic balance performance assessed using the Y Balance Test under standard, internal focus of attention, external focus of attention, and cognitive dual-task conditions.
Day 1 (during the study assessment session)

二次結果の測定

結果測定
メジャーの説明
時間枠
Vertical Jump Performance
時間枠：Day 1 (during the study assessment session)
Vertical jump height assessed using the My Jump 2 application under different neurocognitive testing conditions.
Day 1 (during the study assessment session)
Figure-of-8 Hop Performance
時間枠：Day 1 (during the study assessment session)
Figure-of-8 hop completion time assessed under different neurocognitive testing conditions.
Day 1 (during the study assessment session)
Dual-Task Cost
時間枠：Day 1 (during the study assessment session)
Dual-task cost calculated as the percentage change in motor performance between single-task and dual-task conditions.
Day 1 (during the study assessment session)

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Bahçeşehir University

協力者

The Scientific and Technological Research Council of Turkey

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年6月8日

一次修了 (推定)

2026年10月8日

研究の完了 (推定)

2026年11月8日

試験登録日

最初に提出

2026年6月13日

QC基準を満たした最初の提出物

2026年7月5日

最初の投稿 (実際)

2026年7月8日

学習記録の更新

投稿された最後の更新 (実際)

2026年7月8日

QC基準を満たした最後の更新が送信されました

2026年7月5日

最終確認日

2026年7月1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

  • E-92045188-115.02-218837

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?

いいえ

IPD プランの説明

Individual participant data (IPD) will not be made publicly available in order to maintain participant confidentiality and comply with institutional ethical requirements.

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

いいえ

米国FDA規制機器製品の研究

いいえ

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