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Frontal plane movement of the pelvis and thorax during dynamic activities in individuals with and without anterior cruciate ligament injury

Davies, Jennifer L. ORCID:, Button, Kate ORCID:, Sparkes, Valerie ORCID: and van Deursen, Robert W. ORCID: 2018. Frontal plane movement of the pelvis and thorax during dynamic activities in individuals with and without anterior cruciate ligament injury. The Knee 25 (6) , pp. 997-1008. 10.1016/j.knee.2018.06.002

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Background For elite athletes with anterior cruciate ligament (ACL) reconstruction, reducing pelvis and trunk obliquities is a common goal of rehabilitation. It is not known if this is also a suitable goal for the general population. This study aimed to quantify pelvis and thorax obliquities during dynamic activities in individuals from the general population with and without history of ACL injury. Methods Retrospective analysis of cross-sectional data from 30 participants with ACL reconstruction, 28 participants with ACL deficiency (ACLD), and 32 controls who performed overground walking and jogging, single-leg squat, and single-leg hop for distance. Pelvis and thorax obliquities were quantified in each activity and compared across groups using one-way ANOVA. Coordination was quantified using cross covariance. Results In the stance phase of walking and jogging, pelvis and thorax obliquities were within ±10° of neutral and there was a negative correlation between the two segments at close to zero phase lag. In single-leg squat and hop, range of obliquities varied across individuals and there was no consistent pattern of coordination. Eight ACLD participants felt unable to perform the single-leg hop. In the remaining participants, range of pelvis (p = 0.04) and thorax (p = 0.02) obliquities was smaller in ACLD than controls. Conclusions In challenging single-leg activities, minimal frontal plane motion was not the typical movement pattern observed in the general population. Coordination between the pelvis and thorax was inconsistent within and across individuals. Care should be taken when considering minimising pelvis and thorax obliquities in patients with ACL injury.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Healthcare Sciences
Additional Information: This is an open access article under the CC BY license
Publisher: Elsevier
ISSN: 0968-0160
Funders: Arthritis Research UK
Date of First Compliant Deposit: 5 December 2018
Date of Acceptance: 4 June 2018
Last Modified: 05 May 2023 09:53

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