Volume 32, Issue 3 pp. 612-621
ORIGINAL ARTICLE

Movement strategy correspondence across jumping and cutting tasks after anterior cruciate ligament reconstruction

Holly S. R. Jones

Corresponding Author

Holly S. R. Jones

Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK

Correspondence

Holly S. R. Jones, Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK.

Email: [email protected]

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Isabel S. Moore

Isabel S. Moore

Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK

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Enda King

Enda King

Sports Surgery Clinic, Dublin, Ireland

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Victoria H. Stiles

Victoria H. Stiles

Sport and Health Sciences, University of Exeter, Exeter, UK

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Luca Laudani

Luca Laudani

Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK

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Molly McCarthy-Ryan

Molly McCarthy-Ryan

Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK

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Ciarán McFadden

Ciarán McFadden

Sports Surgery Clinic, Dublin, Ireland

Sport and Exercise Science Research Centre, University of Roehampton, London, UK

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Katherine A. J. Daniels

Katherine A. J. Daniels

Sports Surgery Clinic, Dublin, Ireland

Department of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, UK

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First published: 19 November 2021
Citations: 2

Funding information

This study was supported by the Sports Surgery Clinic, Ireland, and Knowledge Economy Skills Scholarships 2 (KESS2) which is an All Wales higher level skills initiative led by Bangor University on behalf of the HE sectors in Wales. KESS2 is part funded by the Welsh Government's European Social Fund (ESF) competitiveness program for East Wales.

Abstract

There are currently a multitude of tests used to assess readiness to return to sport (RTS) following anterior cruciate ligament reconstruction (ACLR). The aim of this study was to establish the extent to which movement strategies transfer between three common assessment tasks to help improve design of athlete testing batteries following ACLR. A cohort of 127 male patients 8–10 months post-ACLR and 45 non-injured controls took part in the study. Three movement tasks were completed (unilateral and bilateral drop jump, and 90° pre-planned cut), while ground reaction forces and three-dimensional kinematics (250 Hz) were recorded. Compared to the bilateral drop jump and cut, the unilateral drop jump had a higher proportion of work done at the ankle (d = 0.29, p < 0.001 and d = −1.87, p < 0.001, respectively), and a lower proportion of work done at the knee during the braking phase of the task (d = 0.447, p < 0.001 and d = 1.56, p < 0.001, respectively). The ACLR group had higher peak hip moments than the non-injured controls, although the proportion of work done at the ankle, knee and hip joints were similar. Movement strategies were moderately and positively related at the ankle (rs = 0.728, p < 0.001), knee (rs = 0.638, p < 0.001) and hip (rs = 0.593, p < 0.001) between the unilateral and bilateral drop jump, but there was no relationship at the ankle (rs = 0.10, p = 0.104), knee (rs = 0.106, p = 0.166) and hip (rs = −0.019, p = 0.808) between the unilateral drop jump and the cut. Clinicians could therefore consider omitting one of the drop jumps from assessment batteries but should include both jumping and cutting tasks.

CONFLICT OF INTEREST

The authors have no conflict of interest to declare.

DATA AVAILABILITY STATEMENT

Research data are not shared.

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