Abnormal subtalar joint function and the consequent rotation of the tibia during walking are thought to contribute to patellofemoral pain syndrome (PFPS). The purpose of this study was to measure rearfoot and tibia motion, and the ground reaction force (GRF) during the stance phase of walking in subjects with PFPS and compare them to healthy subjects. A four camera motion analysis system with a...

The notion of well-separated sets is crucial in fast multipole methods as the main idea is to approximate the interaction between such sets via cluster expansions. We revisit the one-parameter multipole acceptance criterion in a general setting and derive a relative error estimate. This analysis benefits asymmetric versions of the method, where the division of the multipole boxes is more libera...

Ground reaction forces (GRF) reflect the force history of human body contact with the ground. The purpose of this study was to explore human gait abnormalities due to planovalgus by comparing vertical GRF data between individuals with planovalgus and those with neutrally aligned feet. Second we estimated associations between various measurements and vertical GRF parameters in a pediatric popula...

Handheld load has been reported to enhance horizontal jump performance, however little is known about its influence on ground reaction forces (GRF), especially in female athletes. This study investigated the effects of individualized optimal handheld loading on the technical and physical ability to apply GRF during horizontal jumping in female netball players. Maximal effort, single standing, h...

The purpose of this study was to compare muscle force contributions ankle joint compression and anteroposterior shear forces between people with chronic instability (CAI) healthy controls (CON) during an unanticipated cutting task. Eleven CAI 11 CON performed task as three-dimensional motion capture, ground reaction (GRF), activation data were collected. A musculoskeletal modeling used calculat...

Bárány, Hubard, and Jerónimo recently showed that for given well separated convex bodies S1, . . . , Sd in R and constants βi ∈ [0, 1], there exists a unique hyperplane h with the property that Vol(h ∩Si) = βi·Vol(Si); h is the closed positive transversal halfspace of h, and h is a “generalized ham-sandwich cut”. We give a discrete analogue for a set S of n points in R which is partitioned into...

The Gibbs random field (GRF) has been proved to be a simple and practical way of parameterizing the Markov random field (MRF) which has been widely used to model an image or image related process in many image processing applications. In particular, Gibbs random field can be employed to construct an efficient Bayesian estimation that often yields optimal results. In this paper, we describe how ...

The effect of intravenous infusion of acetate, propionate and butyrate (0, 3, 10, 30 μmol kg-' min-1 over 40 min) on the secretion of growth hormone (GH), insulin and glucagon in response to growth hormone-releasing factor (GRF) injection (0.25 μg/kg, 10 min after the onset of acid infusion) was determined in six sheep. The intravenous injection of GRF caused a marked increase in plasma GH at e...

A gas sensor is used to detect SF6 decomposed gases, which are related to insulation faults, to accurately assess the insulated status of electrical equipment. Graphene films (GrF) modified with Au nanoparticles are used as an adsorbent for the detection of H2S and SOF2, which are two characteristic products of SF6 decomposed gases. Sensing experiments are conducted at room temperature. Results...