{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T15:57:15Z","timestamp":1776873435251,"version":"3.51.2"},"reference-count":66,"publisher":"Human Kinetics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,5,1]]},"abstract":"<jats:p>\n                    <jats:italic>\n                      <jats:bold>Context<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    The double-leg Landing Error Scoring System (LESS) identifies noncontact ACL injury risk. However, its intersession reliability has been examined in only one study. As such injuries often occur during single-leg landings, research on the single-leg LESS (SLESS) in field settings remains lacking. Therefore, our study investigated the intersession, intrarater, and interrater reliability of single- and double-leg jump-landing tasks using SLESS and LESS.\n                    <jats:italic>\n                      <jats:bold>Methods<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Thirty-five team-sports players (age: 26.4 [6.7]\u00a0years, n\u2009=\u200928 males and 7 females) performed 3 jump-landing variations (single-leg dominant and nondominant and double leg) across 3 sessions. We conducted sessions 1 and 2 on the same day, with session 3 one week later. Three assessors rated video footage to determine SLESS and LESS total scores. Reliability was assessed using the intraclass correlation coefficient (ICC), standard error of measurement, and coefficient of variation (CV) with 95% CIs.\n                    <jats:italic>\n                      <jats:bold>Results<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Intersession reliability for the SLESS and LESS scores showed good to excellent ICCs (dominant leg: .89, nondominant leg: .91, double leg: .79) with moderate CVs (dominant leg: 6.5%, nondominant leg: 6.6%, double leg: 7.9%). Intrarater reliability for the SLESS and LESS scores also demonstrated good to excellent ICCs (dominant leg: .94, nondominant leg: 0.92, double leg: .88) with moderate CVs (dominant leg: 5.0%, nondominant leg: 6.0%, double leg: 5.6%). Interrater reliability for the SLESS and LESS scores exhibited good ICCs (dominant leg: .82, nondominant leg: .83, double leg: .79) but poor CVs (dominant leg: 10.5%, nondominant leg: 11.5%, double leg: 11.5%). Single-leg LESS and LESS scores exhibited small standard error of measurement values between 1.05 and 1.11 for all reliability measures.\n                    <jats:italic>\n                      <jats:bold>Conclusions<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    The SLESS and LESS are reliable field-based tools for assessing jump-landing tasks among team-sports players, facilitating confidence in sports and exercise science research.\n                  <\/jats:p>","DOI":"10.1123\/jsr.2024-0378","type":"journal-article","created":{"date-parts":[[2025,12,25]],"date-time":"2025-12-25T03:29:08Z","timestamp":1766633348000},"page":"366-372","source":"Crossref","is-referenced-by-count":0,"title":["Intersession, Intrarater, and Interrater Reliability of the Single- and Double-Leg Landing Error Scoring Systems in Healthy Sporting Populations"],"prefix":"10.1123","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9443-2431","authenticated-orcid":true,"given":"Priyankara Manoj","family":"Rajakaruna","sequence":"first","affiliation":[{"name":"School of Allied Health (Exercise Science), Murdoch University, Murdoch, WA, Australia"},{"name":"Personalised Medicine Centre, Health Futures Institute, Murdoch University, Murdoch, WA, Australia"},{"name":"Discipline of Exercise and Sports Science, School of Allied Health Sciences, Faculty of Health, Charles Darwin University, Brinkin, NT, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4857-8480","authenticated-orcid":true,"given":"Yvonne C.","family":"Learmonth","sequence":"additional","affiliation":[{"name":"School of Allied Health (Exercise Science), Murdoch University, Murdoch, WA, Australia"},{"name":"Personalised Medicine Centre, Health Futures Institute, Murdoch University, Murdoch, WA, Australia"},{"name":"Perron Institute for Neurological and Translational Science, Perth, WA, Australia"},{"name":"Center for Healthy Ageing, Health Futures Institute, Murdoch University, Murdoch, WA, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8219-6120","authenticated-orcid":true,"given":"Alasdair R.","family":"Dempsey","sequence":"additional","affiliation":[{"name":"School of Allied Health (Exercise Science), Murdoch University, Murdoch, WA, Australia"},{"name":"Personalised Medicine Centre, Health Futures Institute, Murdoch University, Murdoch, WA, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"100","reference":[{"issue":"7","key":"r1","series-title":"J Sci Med Sport","doi-asserted-by":"publisher","first-page":"365","DOI":"10.1016\/j.jsams.2023.06.003","article-title":"Insurance cost and injury characteristics of anterior cruciate ligament injuries in sub-elite football: a population analysis involving 3\u00a0years of Australian insurance data","volume":"26","author":"Ross AG","year":"2023","unstructured":"Ross AG, McKay MJ, Pappas E, et\u00a0al. Insurance cost and injury characteristics of anterior cruciate ligament injuries in sub-elite football: a population analysis involving 3\u00a0years of Australian insurance data. J Sci Med Sport. 2023;26(7):365\u2013371. doi:10.1016\/j.jsams.2023.06.003"},{"issue":"1","key":"r2","series-title":"Arthrosc Sports Med Rehabil","doi-asserted-by":"publisher","first-page":"e175","DOI":"10.1016\/j.asmr.2021.10.027","article-title":"Anterior cruciate ligament rehabilitation and return to sport: how fast is too fast?","volume":"4","author":"Waldron K","year":"2022","unstructured":"Waldron K, Brown M, Calderon A, et\u00a0al. Anterior cruciate ligament rehabilitation and return to sport: how fast is too fast? 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