Biomechanical assessment of single-leg drop vertical jump landings : a comparative analysis of first and second landings

dc.contributor.advisorGriffin, Lisa
dc.creatorLi, Chenyang, M.S. in Kinesiology
dc.date.accessioned2024-04-15T22:54:50Z
dc.date.available2024-04-15T22:54:50Z
dc.date.issued2023-08
dc.date.submittedAugust 2023
dc.date.updated2024-04-15T22:54:50Z
dc.description.abstractThe drop vertical jump is commonly used to assess the biomechanical performance of athletes, both for screening for injury risk and for assessing return-to-play readiness. These assessments rely only on the performance of the first landing and the implications of the second landing have been largely ignored. The second landing, however, better simulates the mechanics of rebounding tasks which are most often associated with greater ACL injury risk. The purpose of this study is to analyze the differences in kinetic and kinematic metrics at the knee joint during the first and second landings of the single-leg drop vertical jump. The results of this study have implications for the future assessment of ACL injury risk and return-to-sport readiness. Greater peak vGRF and knee adduction and smaller knee flexion angle indicate that the second landing of the single-leg drop vertical jump may exhibit greater perturbation and better represents the mechanics associated with ACL injury risk. Moreover, the second landing is a more rigorous task and presents a more challenging evaluation scenario and serves as a more reliable evaluation of risk factors in the sagittal and frontal plane, than the first landing.
dc.description.departmentKinesiology and Health Education
dc.format.mimetypeapplication/pdf
dc.identifier.uri
dc.identifier.urihttps://hdl.handle.net/2152/124823
dc.identifier.urihttps://doi.org/10.26153/tsw/51425
dc.language.isoen
dc.subjectKinetics
dc.subjectSingle-leg landing
dc.subjectKinematics
dc.titleBiomechanical assessment of single-leg drop vertical jump landings : a comparative analysis of first and second landings
dc.typeThesis
dc.type.materialtext
thesis.degree.departmentKinesiology and Health Education
thesis.degree.grantorThe University of Texas at Austin
thesis.degree.nameMaster of Science in Kinesiology
thesis.degree.programMovement and Cognitive Rehabilitation Science

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