Changing filtering parameters affects lower extremity pre-landing muscle activation onset times

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...

Gastrocnemius Muscle Flap and Its Application in Lower Extremity Reconstruction

Lower extremity muscle activation during horizontal and uphill running.

To provide more comprehensive information on the extent and pattern of muscle activation during running, we determined lower extremity muscle activation by using exercise-induced contrast shifts in magnetic resonance (MR) images during horizontal and uphill high-intensity (115% of peak oxygen uptake) running to exhaustion (2.0-3.9 min) in 12 young women. The mean percentage of muscle volume act...

Lower-Extremity Muscle Activation During the Star Excursion Balance Tests

Objective: To identify integrated EMG (I-EMG) activity of 6 lower-extremity muscles during the 8 Star Excursion Balance Tests (SEBTs). Design and Setting: Repeated measures, laboratory setting. Subjects: 10 healthy young adults. Interventions: The SEBTs require the subject to balance on the stance leg and maximally reach with the contralateral foot along each of 8 lines extending from a common ...

Hip abductor function and lower extremity landing kinematics: sex differences.

CONTEXT Rapid deceleration during sporting activities, such as landing from a jump, has been identified as a common mechanism of acute knee injury. Research into the role of potential sex differences in hip abductor function with lower extremity kinematics when landing from a jump is limited. OBJECTIVE To evaluate sex differences in hip abductor function in relation to lower extremity landing...