Variability of femoral muscle attachments

Duda, Georg N.; Brand, Doris; Freitag, Sabine; Lierse, W.; Schneider, Erich

doi:10.1016/0021-9290(96)00025-5

Cited by 133 publications

(100 citation statements)

References 16 publications

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“…A 'lumped' muscle model in the form of a linear actuator represented all the muscles responsible for a particular joint's flexion and a similar muscle model was used for extension ( Figure 1b) (Mills et al, 2008). This allowed the linear actuator to act with a moment arm scaled to the subject from the middle of the ranges found in Duda et al (1996) and Jacobs et al (1996).…”

Section: Methodsmentioning

confidence: 99%

Reducing ground reaction forces in gymnastics’ landings may increase internal loading

Mills

Pain

Yeadon

2009

Journal of Biomechanics

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Section: Methodsmentioning

confidence: 99%

Reducing ground reaction forces in gymnastics’ landings may increase internal loading

Mills

Pain

Yeadon

2009

Journal of Biomechanics

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“…Muscles with large attachment areas were modeled by multiple paths. [29][30][31] Segment circumferences were collected at multiple locations to determine the inertial parameters of the segments, based on relative segment masses and approximating the segments' mass distributions using simple geometric relationships. 30,32 Segment masses were computed using reference tissue density parameters.…”

Section: Subject-specific Anatomymentioning

confidence: 99%

Patellofemoral joint contact forces during activities with high knee flexion

Trepczynski

Kutzner

Kornaropoulos

et al. 2011

Journal Orthopaedic Research

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The patellofemoral (PF) joint plays an essential role in knee function, but little is known about the in vivo loading conditions at the joint. We hypothesized that the forces at the PF joint exceed the tibiofemoral (TF) forces during activities with high knee flexion. Motion analysis was performed in two patients with telemetric knee implants during walking, stair climbing, sit-to-stand, and squat. TF and PF forces were calculated using a musculoskeletal model, which was validated against the simultaneously measured in vivo TF forces, with mean errors of 10% and 21% for the two subjects. The in vivo peak TF forces of 2.9-3.4 bodyweight (BW) varied little across activities, while the peak PF forces showed significant variability, ranging from less than 1 BW during walking to more than 3 BW during high flexion activities, exceeding the TF forces. Together with previous in vivo measurements at the hip and knee, the PF forces determined here provide evidence that peak forces across these joints reach values of around 3 BW during high flexion activities, also suggesting that the in vivo loading conditions at the knee can only be fully understood if the forces at the TF and the PF joints are considered together. ß

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“…Then the belly turns slantwise forward at the medial epicondyle of femur which together with quadriceps -its medial head -serves as a "trochlea" for the sartorius muscle. At the distal attachment they go into a flat divergent tendon creating in its further section superficial part of the pes anserinus [2,4,14].…”

Section: Introductionmentioning

confidence: 99%