Muscle Strength and Flexibility Differences Between High and Low Landing Error Scores in Youth Female Athletes


Yangmi Kang

Document Type


Degree Name

Master of Science (MS)


Human Performance Track

Date of Award

Summer 2017


Background: As the number of female athletes participating in sports increases, so does the injury rate for female athletes, especially ACL injuries. Several risk factors for ACL injuries have been proposed, including anatomical, neuromuscular, and muscle strength elements. Weak gluteus muscle strength, decreased trunk proprioception and trunk control, and small range of motion (ROM) are especially indicated as ACL injury risk factors. The Landing Error Scoring System (LESS) is a clinical assessment tool used to identify subjects who have a higher risk of sustaining a future ACL injury. The purpose of this study was to examine the difference in lower extremity muscle strength and ROM between those female athletes with a higher LESS score and those with a lower LESS score.


Vipa Bernhardt

Subject Categories

Medicine and Health Sciences | Social and Behavioral Sciences | Sports Sciences | Sports Studies