Is the Landing Error Scoring System-Real Time a Reliable Tool for Assessing Jump-Landing Biomechanics?
Year: 2021
Type: article
Abstract: An injury of the anterior cruciate ligament (ACL) is among the most difficult injuries for an athlete to sustain and recover from. Adolescent females are particularly vulnerable to non-contact ACL injuries. The Landing Error Scoring System- Real Time (LESS-RT) was developed as a fast and inexpensive method to assess an athlete’s risk of a non-contact ACL injury. However, the reliability of the LESS-RT has yet to be determined among adolescent females. Hence the purpose of this study was to determine the reliability of the LESS-RT among adolescent females. Twenty-two adolescent females completed two sessions of jump-landings tasks with their mechanics scored by the LESS-RT protocol. The LESS-RT scores were compared between sessions with: Δ Mean between session scores, interclass reliability coefficients (r), intraclass reliability coefficients (ICCs), standard error of measurement (SEm), smallest detectable difference, scatter and Bland-Altman plots. The results of the two LESS-RT sessions (mean±SD) were 3.8±2.4 and 3.4±2.4 respectively. The interclass reliability coefficients with 90% confidence limits was: r=0.96 (UL: 0.98, LL: 0.92). The ICC with 90% confidence limits was: ICC=0.96 (UL: 0.98, LL: 0.93). The SEm with 90% confidence limits was: SEm=0.47 (UL: 0.64, LL: 0.38). The Bland-Altman plots indicated agreement between LESS-RT session scores. Within the parameters of this study it appears that the LESS-RT is a reliable instrument for scoring landing mechanics which are associated with the risk of non-contact ACL injury.
Authors: Jon Schneider, Mark DeBeliso
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W3167916006