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Francesca Genoese, Shelby Baez and Johanna M. Hoch

Clinical Scenario More than 2.5 million athletic injuries present to emergency departments each year, and approximately 700,000 are knee injuries. 1 Common knee injuries that may occur during athletic participation include sprains, strains, contusions, fractures, dislocations, and tendinopathies

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Theresa Walton-Fisette

constraints. Perhaps the metaphor of ‘taking a knee’ can be useful as we consider for ourselves, individually and collectively, how to do this work. As is always the case, there are others who have gone before us, helping to break the trail. In this article, I will reflect on my own work within the United

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Mhairi K. MacLean and Daniel P. Ferris

mechanical work at the ankle, knee, and hip. This assumption does not include work performed by motion of soft tissues or include work done at the toe, vertebral, and other joints. 15 , 16 Recent studies have found that including translational work of segments is able to more accurately capture the total

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David C. Kingston and Stacey M. Acker

There is no current 3D musculoskeletal (MSK) model of the knee that can incorporate the effects of intersegmental contact during high knee flexion postures. Intersegmental contact is a critical parameter when modeling high knee flexion movements (knee flexion exceeding 120° 1 , 2 ) as its omission

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Aaron Nelson, Nathan Koslakiewicz and Thomas Gus Almonroeder

second injury involves the previously uninjured knee. It appears that there is an urgent need to improve rehabilitation following ACL reconstruction. Athletes who have undergone an ACL reconstruction often demonstrate greater interlimb knee joint kinetic (ie, joint moments and power) asymmetry during

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Rena F. Hale, Sandor Dorgo, Roger V. Gonzalez and Jerome Hausselle

plane, lower-extremity parameters while performing a bodyweight back squat (Figure  1 ). Validation was conducted at maximum squat depth through quantification of (1) achieved individual target knee flexion angle (TKFA) and (2) center-of-pressure (COP) location under the foot. The authors hypothesized

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Rachel R. Kleis, Janet E. Simon, Michael Turner, Luzita I. Vela, Abbey C. Thomas and Phillip A. Gribble

Key Points ▸ General health is negatively impacted in patients after knee injury/surgery. ▸ Those with knee injury/surgery have higher body mass index, more general pain, and lower quality of life than those with no knee injury history. ▸ Those with knee surgery history have higher body mass index

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Irfan A. Khan and Kelley D. Henderson

Key Points ▸ Patients with medial knee osteoarthritis experienced significantly decreased levels of pain and improved levels of function when utilizing a valgus knee brace. ▸ A combination of a valgus knee brace and other orthoses may be more effective in reducing symptoms and improving function

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Akihiro Tamura, Kiyokazu Akasaka and Takahiro Otsudo

Hewett et al 5 showed that female athletes with dynamic knee valgus, defined as the position or motion of the distal femur toward and distal tibia away from the midline of the body, had an increased risk of noncontact ACL injuries. Other prospective research showed that noncontact ACL injuries were more

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Sungwan Kim, Daeho Kim and Jihong Park

Knee pathologies are a common musculoskeletal problem. For example, approximately 25% of the athletic or general population experience anterior knee pain (AKP), 1 the incidence of anterior cruciate ligament (ACL) tears is 68.6 per 100,000 person-years, 2 and meniscal tears affect an estimated 35