Evidence map›Paper›PMID 31961778›Full record

SynthesisSports health

Is the Landing Error Scoring System Reliable and Valid? A Systematic Review.

Ivana Hanzlíková, Kim Hébert-Losier

Abstract readSystematic Review
In one paragraph

Synthesis in Sports health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Does the static Q angle reflect dynamic landing mechanics?BMC sports science, medicine & rehabilitation · 2026
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  5. The psychometric properties of the Dubousset Functional Test in patients with thoracic hyperkyphosis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Ivana HanzlíkováDivision of Health, Engineering, Computing and Science, School of Health, Sport and Human Performance, University of Waikato, Tauranga, New Zealand.
Kim Hébert-LosierDivision of Health, Engineering, Computing and Science, School of Health, Sport and Human Performance, University of Waikato, Tauranga, New Zealand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextThe Landing Error Scoring System (LESS) is a clinical tool often used in research and practice to identify athletes presenting high injury-risk biomechanical patterns during a jump-landing task.

objectiveTo systematically review the literature addressing the psychometric properties of the LESS. DATA SOURCES: Three electronic databases (PubMed, Web of Science, and Scopus) were searched on March 28, 2018, using the term "Landing Error Scoring System." STUDY SELECTION: All studies using the LESS as main outcome measure and addressing its reliability, validity against motion capture system, and predictive validity were included. Original English-language studies published in peer-reviewed journals were reviewed. Studies using modified versions of the LESS were excluded. STUDY

designSystematic literature review. LEVEL OF EVIDENCE: Level 4. DATA EXTRACTION: Study design, population, LESS testing procedures, LESS scores, statistical analysis, and main results were extracted from studies using a standardized template.

resultsTen studies met inclusion criteria and were appraised using Newcastle-Ottawa Quality Assessment Scale adapted for cross-sectional studies. The overall LESS score demonstrated good-to-excellent intrarater (intraclass correlation coefficient [ICC], 0.82-0.99), interrater (ICC, 0.83-0.92), and intersession reliability (ICC, 0.81). The validity of the overall LESS score against 3-dimensional jump-landing biomechanics was good when individuals were divided into 4 quartiles based on LESS scores. The validity of individual LESS items versus 3-dimensional motion capture data was moderate-to-excellent for most of the items addressing key risk factors for anterior cruciate ligament (ACL) injury. The predictive value of the LESS for ACL and other noncontact lower-extremity injuries remains uncertain based on the current scientific evidence.

conclusionThe LESS is a reliable screening tool. However, further work is needed to improve the LESS validity against motion capture system and confirm its predictive validity for ACL and other noncontact lower-extremity injuries.

Indexed as

Plyometric ExerciseBiomechanical PhenomenaExercise TestHumansIncidenceLower ExtremityReproducibility of ResultsRisk AssessmentRisk Factorsinjury preventioninjury riskjump-landingmovement screensport injury

Identifiers

PMID31961778
PMCPMC7040940

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.