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Aiko Sakurai, Kengo Harato, Yutaro Morishige, Shu Kobayashi, Yasuo Niki and Takeo Nagura

Generally, 70% of anterior cruciate ligament (ACL) injury at the knee joint occur during noncontact episode, such as deceleration, lateral pivoting, or landing tasks. 1 – 3 According to previous studies, knee abduction angle and moment during landing tasks are reported as essential biomechanical

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Pawel R. Golyski, Elizabeth M. Bell, Elizabeth M. Husson, Erik J. Wolf and Brad D. Hendershot

Abnormal joint mechanics are often associated with an elevated risk for joint pathology. During ambulation, increases in peak knee joint loads have been related to the severity or progression of existing joint degeneration 1 and, to some extent, its initiation. 2 Regarding the latter, noting that

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Antoine Falisse, Sam Van Rossom, Johannes Gijsbers, Frans Steenbrink, Ben J.H. van Basten, Ilse Jonkers, Antonie J. van den Bogert and Friedl De Groote

mediolateral axis. Second, the hip joint centers had different locations (Table  2 ). In particular, the hip joint center was on average 2.4 cm more anterior in Human Body Model compared with the OpenSim model. Third, the tibia origins, defining the position of the knee joint centers, had different locations

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Oladipo O. Eddo, Bryndan W. Lindsey, Shane V. Caswell, Matt Prebble and Nelson Cortes

stance knee joint center, potentially decreasing the associated moment arm thereby reducing KAM. 14 Medial knee thrust modification involves gait patterns that drive the targeted knee medially, causing the GRF vector to pass laterally to the knee center. 15 Increasing medial knee thrust reduces the

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Xingda Qu, Jianxin Jiang and Xinyao Hu

3 mm in thickness (KOTL-G-B001; Jinlong Machinery & Electronic Co, Ltd, Zhejiang, China). These vibrators were bilaterally attached onto the anterior and posterior sides of the knee joints and the lateral and medial epicondyles of the femur, respectively. The vibration frequency was ~50 Hz, and

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Jill Alexander and David Rhodes

noted subsequently following knee joint cooling than the anterior thigh in males for both speeds (PT/AvT: 60°/s /150°/s), but not in females. Accordingly, at all other time points (10, 20, and 30 min), data recorded greater reductions for anterior thigh cooling compared with knee for both gender groups

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Shiho Goto, Naoko Aminaka and Phillip A. Gribble

explain inability to maintain hip and knee joints in a neutral position, which could result in increased medial excursion at the hip and knee joint (hip adduction and internal rotation and knee valgus). This relationship is unclear as there is a limited number of studies examining muscle activity and hip

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Kosuke Fujita, Masatoshi Nakamura, Hiroki Umegaki, Takuya Kobayashi, Satoru Nishishita, Hiroki Tanaka, Satoko Ibuki and Noriaki Ichihashi

the Biodex System 4 (Biodex Medical Systems, Inc, Shirley, NY). Subjects were seated with a wedge placed under their thigh and another wedge-shaped cushion behind their back, so that the hip and knee joints were flexed to about 120°. The dominant foot was securely attached to the arm of the

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Samuel Ryan, Thomas Kempton, Emidio Pacecca and Aaron J. Coutts

analysis (825 of a possible 1035 tests were analyzed throughout the season). Players were required to lie beneath the GroinBar Hip Strength Testing System (Vald Performance, Albion, Australia) in a supine position with their knee joints at an angle of 60°. Bar height was customized for each player to

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Erica M. Willadsen, Andrea B. Zahn and Chris J. Durall

another reporting an undesirable decrease in knee joint flexion angle at landing. 4 Clinical Bottom Line The risk of noncontact ACL injury is thought to be elevated during landing, cutting, or jumping with increased knee valgus and/or increased knee extension angulation. 1 , 3 Based on this review