PMID- 19726623
OWN - NLM
STAT- MEDLINE
DCOM- 20100201
LR  - 20220409
IS  - 1552-3365 (Electronic)
IS  - 0363-5465 (Linking)
VI  - 37
IP  - 10
DP  - 2009 Oct
TI  - The Landing Error Scoring System (LESS) Is a valid and reliable clinical 
      assessment tool of jump-landing biomechanics: The JUMP-ACL study.
PG  - 1996-2002
LID - 10.1177/0363546509343200 [doi]
AB  - BACKGROUND: Anterior cruciate ligament injuries are common in athletes and have 
      serious sequelae. A valid clinical tool that reliably identifies individuals at 
      an increased risk for ACL injury would be highly useful for screening sports 
      teams, because individuals identified as "high-risk" could then be provided with 
      intensive prevention programs. HYPOTHESIS: A clinical screening tool (the Landing 
      Error Scoring System, or LESS) will reliably identify subjects with potentially 
      high-risk biomechanics. STUDY DESIGN: Cohort study (Diagnosis); Level of 
      evidence, 2. METHODS: A jump-landing-rebound task was used. Off-the-shelf 
      camcorders recorded frontal and sagittal plane views of the subject performing 
      the task. The LESS was scored from replay of this video. Three-dimensional lower 
      extremity kinematics and kinetics were also collected and used as the gold 
      standard against which the validity of the LESS was assessed. Three trials of the 
      jump-landing task were collected for 2691 subjects. Kinematic and kinetic 
      measures were compared across LESS score quartiles using 1-way analysis of 
      variance; LESS quartiles were compared across genders using the chi-square test. 
      The LESS scores from a subset of 50 subjects were rescored to determine 
      intrarater and interrater reliability. RESULTS: Subjects with high LESS scores 
      (poor jump-landing technique) displayed significantly different lower extremity 
      kinematics and kinetics compared with subjects with low LESS scores (excellent 
      jump-landing technique). Women had higher (worse) LESS scores than men. 
      Intrarater and interrater reliability of the LESS ranged from good to excellent. 
      CONCLUSION: The LESS is a valid and reliable tool for identifying potentially 
      high-risk movement patterns during a jump-landing task.
FAU - Padua, Darin A
AU  - Padua DA
AD  - Sports Medicine Research Laboratory, Chapel Hill, North Carolina, USA. 
      dpadua@email.unc.edu
FAU - Marshall, Stephen W
AU  - Marshall SW
FAU - Boling, Michelle C
AU  - Boling MC
FAU - Thigpen, Charles A
AU  - Thigpen CA
FAU - Garrett, William E Jr
AU  - Garrett WE Jr
FAU - Beutler, Anthony I
AU  - Beutler AI
LA  - eng
GR  - R01 AR050461/AR/NIAMS NIH HHS/United States
GR  - R01 AR050461-05/AR/NIAMS NIH HHS/United States
GR  - R01-AR054061001/AR/NIAMS NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Validation Study
DEP - 20090902
PL  - United States
TA  - Am J Sports Med
JT  - The American journal of sports medicine
JID - 7609541
SB  - IM
MH  - *Anterior Cruciate Ligament Injuries
MH  - Biomechanical Phenomena
MH  - Female
MH  - Humans
MH  - Knee Injuries/*epidemiology
MH  - Knee Joint/*physiology
MH  - Male
MH  - *Mass Screening
MH  - Prospective Studies
MH  - Reproducibility of Results
MH  - Risk Assessment
MH  - Sex Characteristics
MH  - United States/epidemiology
EDAT- 2009/09/04 06:00
MHDA- 2010/02/02 06:00
CRDT- 2009/09/04 06:00
PHST- 2009/09/04 06:00 [entrez]
PHST- 2009/09/04 06:00 [pubmed]
PHST- 2010/02/02 06:00 [medline]
AID - 0363546509343200 [pii]
AID - 10.1177/0363546509343200 [doi]
PST - ppublish
SO  - Am J Sports Med. 2009 Oct;37(10):1996-2002. doi: 10.1177/0363546509343200. Epub 
      2009 Sep 2.