Lower Extremity Energy Absorption and Biomechanics During Landing, Part II: Frontal-Plane Energy Analyses and Interplanar Relationships

The Effect of a Cognitive Task on Lower Extremity Biomechanics and Performance during Landing

Lower Extremity Asymmetries during Jump-landing Tasks

Higher side-to-side asymmetry among female athletes compared to their male counterparts during bilateral athletic tasks such as landing from a jump has been proposed as a potential source of non-contact knee injuries. However, the kinematic symmetry and potential sex differences during bilateral landings have not been examined. The purpose of this study was to evaluate lower extremity kinematic...

The Effect of a Secondary Cognitive Task on Lower Extremity Biomechanics During Landing

Background: The purpose of this study was to examine the effect of a cognitive task on jump-landing biomechanics and performance. Methods: 26 recreational athletes participated in the study. Participants jumped forward off of a 30cm box a distance equal to one half of their body height, then immediately performed a countermovement jump. This movement was performed in a control condition, while ...

Lower Extremity Biomechanics of an Ankle ‘giving Way’ Case during the Drop Landing

The purpose of our study was to present an accidental ankle ‘giving way’ case of a participant with chronic ankle instability (CAI) during drop landing test and compare lower extremity biomechanics with that of the participant’s normal landing trials. A 7-camera Vicon system was used to capture motions of the participant drop landing from a 30-cm high box. Ground reaction forces were collected ...

The Relationship of Anatomical Alignment and Strength of Some Lower Extremity Muscles with Jump-landing Biomechanics: A Landing Error Scoring System Study

Background: The purpose of the present study was to investigate correlative and predictive relationship of lower extremity anatomical alignment, isometric hip abduction and external rotation strength with jump-landing biomechanics using Landing Error Scoring System (LESS). Methods: Anatomical alignment and isometric lower extremity muscle strength of 30 active...