Greater Cognitive-Motor Interference Among Patients After Anterior Cruciate Ligament Reconstruction Compared With Controls.

Background: Chaotic sporting environments require the performance of concurrent cognitive and motor tasks. A reduced capacity for either or both of the tasks when performed concurrently is known as cognitive-motor interference (CMi) and is believed to increase the injury risk. A greater susceptibili...

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Publicado en:American Journal of Sports Medicine Vol. 53; no. 5; pp. 1041 - 1050
Autores principales: Strong, Andrew, Boraxbekk, Carl-Johan, Markström, Jonas L.
Formato: research tables/charts Journal Article
Publicado: Sage Publications Inc. Apr2025
Acceso en línea:Ver este registro en EBSCOhost
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      jtl: American Journal of Sports Medicine
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      dt: Apr2025
      vid: 53
      iid: 5
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      pub: Sage Publications Inc.
      place: Thousand Oaks, California
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        atl: Greater Cognitive-Motor Interference Among Patients After Anterior Cruciate Ligament Reconstruction Compared With Controls.
      aug:
        au:
          Strong, Andrew
          Boraxbekk, Carl-Johan
          Markström, Jonas L.
        affil: Unit of Physiotherapy, Department of Community Medicine and Rehabilitation, Umeå University, Umeå, Sweden
      sug:
        subj:
          Anterior Cruciate Ligament Injuries Surgery
          Anterior Cruciate Ligament Reconstruction
          Psychomotor Performance Evaluation
          Cognition Evaluation
          Jumping Physiology
          Task Performance and Analysis
          Sex Factors
          Human
          Male
          Female
          Adult
          Adolescence
          Cross Sectional Studies
          Comparative Studies
          Memory, Short Term
          Attention
          Decision Making
          Ground Reaction Force
          Athletic Injuries Surgery
          Adult: 19-44 years
          Adolescent: 13-18 years
          Male
          Female
      ab: Background: Chaotic sporting environments require the performance of concurrent cognitive and motor tasks. A reduced capacity for either or both of the tasks when performed concurrently is known as cognitive-motor interference (CMi) and is believed to increase the injury risk. A greater susceptibility to CMi after a rupture of the anterior cruciate ligament (ACL) has been suggested to be caused by central nervous system adaptations, thus possibly contributing to high secondary ACL injury rates. Purpose: To investigate whether patients after ACL reconstruction (ACLR) demonstrate greater CMi than noninjured controls when adding secondary cognitive tasks to the drop vertical jump (DVJ) and explore the potential influence of sex on CMi. Study Design: Controlled laboratory study. Methods: A total of 40 (50% male) sports-active patients who had undergone ACLR (mean, 24.9 ± 16.1 months after surgery) and 40 (50% male) sports-active noninjured controls performed DVJs with and without secondary cognitive tasks targeting short-term memory, attention, fast decision-making, and inhibitory control. Outcomes included a letter position recall task and 3 motor variables: (1) correct action (landing or landing with a subsequent vertical jump), (2) relative jump height (relative between DVJs), and (3) relative peak vertical ground-reaction force (relative between DVJs). Participants also completed isolated cognitive tests (CANTAB) included as covariates in multivariate analysis. Results: Multivariate analysis of variance revealed that the ACLR group had greater CMi than the control group (P <.001), as manifested by more incorrect answers for the cognitive letter recall task (mean difference [MD], –13.3% [95% CI, –20.8% to –5.9%]; P <.001), more incorrect motor actions (MD, –7.5% [95% CI, −12.4% to –2.6%]; P =.003), and a reduced relative jump height (MD, –4.5% [95% CI, –7.9% to –1.2%]; P =.010). No difference in relative peak vertical ground-reaction force was found (MD, 2.8% [95% CI, –7.7% to 13.3%]; P =.59). Isolated cognitive outcomes did not affect these results, and there were no significant differences between male and female participants. Conclusion: Patients after ACLR showed greater CMi than noninjured controls, which was unrelated to isolated cognitive outcomes, thus indicating aberrant neurocognitive function. Clinical Relevance: Clinicians should consider cognitive and dual-task training and screening during ACL rehabilitation to better prepare patients for chaotic and uncontrolled sporting environments in which dual tasking is prevalent. Such interventions may help to reduce the risk of secondary ACL injuries.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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