A rolling constraint reproduces ground reaction forces and moments in dynamic simulations of walking, running, and crouch gait

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A rolling constraint reproduces ground reaction forces and moments in dynamic simulations of walking, running, and crouch gait.

Recent advances in computational technology have dramatically increased the use of muscle-driven simulation to study accelerations produced by muscles during gait. Accelerations computed from muscle-driven simulations are sensitive to the model used to represent contact between the foot and ground. A foot-ground contact model must be able to calculate ground reaction forces and moments that are...

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Ground reaction forces in running: a reexamination.

Ground reaction force (GRF) data were collected on twenty adult males during running stance to establish normative standards to aid in assessment of the gait of atypical runners. Subjects ran between 30 and 40 trials across a Kistler 0.6 X 0.9 m force platform at self-selected speeds ranging from 2.5 to 5.5 m s-1. Best fit polynomials for a given descriptor variable were constructed for each su...

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Posture Influences Ground Reaction Force: Implications for Crouch Gait

Crouch gait, a common condition among children with cerebral palsy, decreases walking efficiency due to the increased knee and hip flexion during the stance phase of gait [1]. Excessive knee flexion during walking deteriorates joints and leads to chronic knee pain [2], and if untreated, these symptoms can worsen over time [3]. Several factors have been linked with crouch gait, including muscle ...

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Estimation of Ground Reaction Forces and Moments During Gait Using Only Inertial Motion Capture

Ground reaction forces and moments (GRF&M) are important measures used as input in biomechanical analysis to estimate joint kinetics, which often are used to infer information for many musculoskeletal diseases. Their assessment is conventionally achieved using laboratory-based equipment that cannot be applied in daily life monitoring. In this study, we propose a method to predict GRF&M ...

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Ground reaction forces in distance running.

Ground reaction forces and center of pressure (C of P ) patterns were studied in 17 subjects running a t 4.5 ms-'. The subjects wereclassified as rearfoot o r midfoot strikers according to the location of the C of P at the time of first contact between foot and ground. The C of P path in the rearfoot group showed a continuous anterior movement during support while the C of P in most of the midf...

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ژورنال

عنوان ژورنال: Journal of Biomechanics

سال: 2013

ISSN: 0021-9290

DOI: 10.1016/j.jbiomech.2013.03.030