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Related Experiment Video

Updated: Jul 17, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction
05:07

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

Dual-Task Single-Leg Hop Performance Exposes Persistent Asymmetry and Movement Deficits After Anterior Cruciate

Simon Valot1, Ayrton Moiroux-Sahraoui2, Adrien Cerrito3

  • 1Centre Sablais de L'Appareil Locomoteur, Les Sables D'Olonne, 85340, Pays de La Loire, France.

Translational Sports Medicine
|July 16, 2026
PubMed
Summary

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Dual-task testing reveals significant limb symmetry deficits in individuals after anterior cruciate ligament reconstruction (ACLR), impacting hop performance and movement quality. These findings highlight the importance of cognitive-motor integration assessment in ACLR rehabilitation.

Area of Science:

  • Neuroscience
  • Orthopedics
  • Rehabilitation Science

Background:

  • Dual-task paradigms assess cognitive-motor interactions, crucial for understanding functional deficits post-anterior cruciate ligament reconstruction (ACLR).
  • Previous research has not sufficiently quantified the impact of dual-task conditions on hop performance, movement quality, and limb symmetry in ACLR populations.

Purpose of the Study:

  • To compare hop performance, movement quality, and limb symmetry under single- and dual-task conditions between individuals after ACLR and healthy controls.
  • To quantify the dual-task cost (DTC) for single-leg hop for distance (SLHD), movement quality (QASL), and limb symmetry index (LSI) in both groups.

Main Methods:

  • A multicentre, randomized, repeated-measures experimental study involving 31 participants (15 ACLR, 16 controls).
Keywords:
anterior cruciate ligament reconstructioncognitive–motor interactiondual-task performancelimb symmetry indexmovement qualityreturn-to-sportsingle-leg hop

Related Experiment Videos

Last Updated: Jul 17, 2026

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction
05:07

Early Weight-Bearing Rehabilitation Protocol After Anterior Cruciate Ligament Reconstruction

Published on: March 1, 2024

  • Participants performed the SLHD under single-task and dual-task conditions (visuo-attentional working-memory task).
  • Movement quality assessed using the Qualitative Assessment of Single-Leg Landing Scale (QASLS); DTC calculated for SLHD, QASLS, and LSI.

    • Main Results:

    • While SLHD and QASLS DTCs were numerically higher in the ACLR group, differences were not statistically significant.
    • Limb symmetry index DTC was significantly higher in the ACLR group compared to controls (p < 0.001 for both sequences A1 and A2).
    • Descriptive findings indicated dual-task related effects on limb symmetry in the ACLR group, with minimal changes in controls.

    Conclusions:

    • Dual-task conditions elicit measurable changes in hop performance, movement quality, and notably, limb symmetry after ACLR.
    • The findings underscore the utility of dual-task testing in revealing subtle functional deficits in ACLR rehabilitation.
    • Clinical trial registration: NCT06768957.