ground reaction force

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force plate

a device for measuring the force between a body or object and the ground (the ground reaction force). Often constructed from strain gauges or piezo-electric transducers. Also known as a force platform.

ground reaction force

; GRF force offered by support surface, equalling and opposing force due to body mass passing through the foot to the ground surface; GRF is resolved into vertical (counteracting body weight) and horizontal (leading to forward movement) components
References in periodicals archive ?
The Challenge provides you with consulting time during the GRF implementation process, connects you to peer institutions with GRFs, and even gives you access to the Green Revolving Investment Tracking System (GRITS) web tool, which helps you manage your GRF carbon, energy, and financial savings.
We compared average hind-limb GRF values on the 1st day and 5th day in the two landing groups.
Average LL and LU were quantified by the average vertical GRF in the first and second double-support phases, respectively (Figure 1(a), Figure 2(a)).
The GRFs were quantified by three vectors in the vertical (Fz), anterior-posterior (Fx) and medial-lateral (Fy) planes.
The governor's recently released executive budget for the 2014-2015 biennium proposes GRF expenditures of $30.
Thus, we hypothesized that prosthetic-side vertical and fore-aft GRF weight-acceptance peaks would be reduced and occur later after initial contact in the thicker liner condition.
The jumping height was calculated by the time of flight phase based on the GRF graph.
Iwach, GRF Board Chair and Executive Director at the Glaucoma Center of San Francisco, said, "Glaucoma 360 is designed to bring greater awareness to unmet medical needs in glaucoma and to highlight current and novel therapies that will help preserve sight for glaucoma patients.
March 4, 2015 /PRNewswire/ -- Grifols (MCE: GRF, MCE: GRF.
Over the last three decades, research conducted on GRF during running has examined how these forces affect the body and how factors such as running style, types of surfaces, and footwear may affect GRF (Bobbert et al.
During single-leg stance, the support leg simultaneously supports the weight of the upper body (head, arms, and trunk) [1], helps control upper-body trajectory in both anteroposterior and mediolateral directions [2-3], and generates and redirects the GRF to propel the COM in the desired direction [1-2,4].
3% y-o-y; however, these results included the state's redirection to the GRF of tax receipts previously allocated to localities, such as the commercial activity tax and public utility tax.