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Activity Number: 243 - Statistics in Sports and Beyond
Type: Contributed
Date/Time: Wednesday, August 11, 2021 : 10:00 AM to 11:50 AM
Sponsor: Section on Statistics in Sports
Abstract #318777
Title: Repeated Measures Investigation of the Change in Between-Limb Gait Asymmetries for Post-ACLR Subjects in an Asymmetric Walking Rehabilitation Protocol
Author(s): Carolyn B Morgan* and Yannis K Halkiadakis and Kristin D Morgan
Companies: MECK Limited LLC and University of Connecticut and University of Connecticut
Keywords: Repeated Measures; Return to Sport; Gait differences; Asymmetric walking; Limb loading rate; anterior cruciate ligament

Over 250,000 anterior cruciate ligament (ACL) injuries occur annually. Despite ACL reconstruction (ACLR) and rehabilitation, between-limb gait differences can persist in post-ACLR individuals. Gait differences lead to altered limb loading rates which contributes to detrimental knee loading and the initiation of post traumatic knee osteoarthritis. Rehabilitation efforts and return-to-sport criteria are often directed at restoring between-limb symmetry. While this is challenging, stroke research offers a promising approach that utilizes asymmetric walking. Asymmetric walking functions to correct adverse between-limb gait differences and occurs when an individual is made to intentionally walk with each limb moving at a different speed. Repeated measures analysis was used to assess the effect of asymmetric walking in restoring between-limb loading rate symmetry using the loading rate gait changes in the injured and non-injured limbs. The hypothesis that post-ACLR individuals adopted symmetric between-limb loading rates in response to the asymmetric walking protocol was supported. An initial higher average loading rate was predicted for the injured limb with a decrease over time.

Authors who are presenting talks have a * after their name.

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