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The purpose of this investigation was to evaluate differences in quadriceps corticospinal excitability, spinal-reflexive excitability, strength, and voluntary activation before, 2 weeks post and 6 months post-anterior cruciate ligament reconstruction (ACLr). This longitudinal, case-control investigation examined 20 patients scheduled for ACLr (11 females, 9(More)
CONTEXT Arthrogenic muscle inhibition is an important underlying factor in persistent quadriceps muscle weakness after knee injury or surgery. OBJECTIVE To determine the magnitude and prevalence of volitional quadriceps activation deficits after knee injury. DATA SOURCES Web of Science database. STUDY SELECTION Eligible studies involved human(More)
The neuromuscular consequences of anterior cruciate ligament (ACL) injury are important considerations because these deficits play a crucial role in a patient's recovery following ACL injury or reconstruction. The purpose of this article is to review and synthesize the known neuromuscular consequences of ACL injury and reconstruction. Specifically, changes(More)
INTRODUCTION Recent rehabilitation paradigms have suggested that improving voluntary muscle activation may optimize strength outcomes related to resistance training. The aim of this study was to determine if changes in voluntary quadriceps activation could predict changes in quadriceps strength following a 4 week therapeutic exercise regimen. METHOD(More)
CONTEXT Skinfold calipers (SC) typically are used to determine subcutaneous fat thicknesses. Identifying the exact separation of muscle and fat can complicate measurements. Ultrasound imaging (USI) might provide a better technique for analyzing subcutaneous fat thicknesses. OBJECTIVE To compare measurements from SC and USI in assessing subcutaneous thigh(More)
CONTEXT Neuromuscular deficits are common in people with chronic ankle instability (CAI). Corticomotor pathways are very influential in the production of voluntary muscle function, yet these pathways have not been evaluated in people with CAI. OBJECTIVE To determine if corticomotor excitability of the fibularis longus (FL) differs between individuals with(More)
OBJECTIVE To determine the prophylactic capability of anterior cruciate ligament (ACL) reconstruction in decreasing the risk of knee osteoarthritis (OA) when compared with ACL-deficient patients, as well as the effect of a concomitant meniscectomy. We also sought to examine the influence of study design, publication date, and graft type as well as the(More)
PURPOSE To determine whether transcutaneous electrical nerve stimulation (TENS) and focal knee joint cooling will affect the quadriceps central activation ratio (CAR) in patients with tibiofemoral osteoarthritis. METHODS Thirty-three participants with diagnosed tibiofemoral osteoarthritis were randomly allocated to the 45-min TENS treatment (six males and(More)
PURPOSE/BACKGROUND Physical inactivity is common in patients with knee osteoarthritis (OA) and has been linked to serious comorbidities such as cardiovascular disease, obesity, and diabetes. The purpose of this study was to examine the association between quadriceps strength and self-reported physical activity in patients with radiographically confirmed(More)
CONTEXT Spinal-reflexive and corticomotor excitability may have a critical role in altering muscle function needed to stabilize the ankle in people with chronic ankle instability (CAI). OBJECTIVE To determine the association between self-reported disability and both spinal-reflexive and corticomotor excitability in people with CAI. DESIGN Descriptive(More)