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The Landing Error Scoring System (LESS) Is a Valid and Reliable Clinical Assessment Tool of Jump-Landing Biomechanics
Background Anterior cruciate ligament injuries are common in athletes and have serious sequelae. A valid clinical tool that reliably identifies individuals at an increased risk for ACL injury wouldExpand
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Epidemiology of Concussion in Collegiate and High School Football Players
Despite evolutionary changes in protective equipment, head injury remains common in football. We investigated concussion in football and associated epidemiologic issues such as 1) incidence ofExpand
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A Prospective Investigation of Biomechanical Risk Factors for Patellofemoral Pain Syndrome
Background Patellofemoral pain syndrome is one of the most common chronic knee injuries; however, little research has been done to determine the risk factors for this injury. Hypothesis Altered lowerExpand
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Systematic Review of the Balance Error Scoring System
Context: The Balance Error Scoring System (BESS) is commonly used by researchers and clinicians to evaluate balance.A growing number of studies are using the BESS as an outcome measure beyond theExpand
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Gender differences in the incidence and prevalence of patellofemoral pain syndrome
The purpose of this investigation was to determine the association between gender and the prevalence and incidence of patellofemoral pain syndrome (PFPS). One thousand five hundred and twenty‐fiveExpand
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Gender differences in active musculoskeletal stiffness. Part II. Quantification of leg stiffness during functional hopping tasks.
Leg stiffness was compared between age-matched males and females during hopping at preferred and controlled frequencies. Stiffness was defined as the linear regression slope between the verticalExpand
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Gender differences in active musculoskeletal stiffness. Part I. Quantification in controlled measurements of knee joint dynamics.
Active females demonstrate increased risk for musculoskeletal injuries relative to equivalently-trained males. Although gender differences in factors such as passive laxity, skeletal geometry andExpand
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Fatigue, vertical leg stiffness, and stiffness control strategies in males and females.
CONTEXT Fatigue appears to influence musculoskeletal injury rates during athletic activities, but whether males and females respond differently to fatigue is unknown. OBJECTIVE To determine theExpand
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Gluteal muscle activation during common therapeutic exercises.
STUDY DESIGN Experimental laboratory study. OBJECTIVES To quantify and compare electromyographic signal amplitude of the gluteus maximus and gluteus medius muscles during exercises of varyingExpand
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The Landing Error Scoring System as a Screening Tool for an Anterior Cruciate Ligament Injury-Prevention Program in Elite-Youth Soccer Athletes.
CONTEXT Identifying neuromuscular screening factors for anterior cruciate ligament (ACL) injury is a critical step toward large-scale deployment of effective ACL injury-prevention programs. TheExpand
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