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Assessing side-to-side injury risk and reliability of the modified landing error scoring system (LESS-M) in youth
Yu Gao1, Komsak Sinsurin1, Roongtiwa Vachalathiti2
1Biomechanics and Sports Research Unit, Faculty of Physical Therapy, Mahidol University, Nakhon Pathom, Thailand.
Objective:
To explore the risk of non-contact anterior cruciate ligament (ACL) injury in basketball players, with a specific focus on comparing dominant (DL) and non-dominant limbs (NDL) assessed with the LESS-M and tested the LESS-M reliability.
Design:
Observational study.
Setting:
Field-based testing.
Participants:
Thirty-six youth basketball players (31 males, 5 females; average BMI 21.35 ± 1.98 kg/m2).
Main Outcome Measures:
LESS-M total scores of DL and NDL, and intraclass correlation coefficient ICC(2,1) and ICC(2,k) reliability.
Results:
The LESS-M total scores were no statistically significant side-to-side difference (p = 0.327) between DL (4.11 ± 1.16) and NDL (4.28 ± 1.36). The LESS-M demonstrated good intra- and inter-rater reliability, with ICC(2,1) = 0.789 and ICC(2,k) = 0.803, respectively.
Conclusion:
The risk of non-contact ACL injury assessed using the LESS-M was similar between the DL and NDL in basketball players. The LESS-M demonstrated good reliability and may be a practical screening tool for movement assessment in basketball athletes. Future prospective studies are needed to establish cut-off values and explore its application in injured populations.
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