Results 1 to 10 of about 96,351 (88)

Isometric Tensor Network States in Two Dimensions [PDF]

open access: yes, 2020
Tensor network states (TNS) are a promising but numerically challenging tool for simulating two-dimensional (2D) quantum many-body problems. We introduce an isometric restriction of the TNS ansatz that allows for highly efficient contraction of the ...
Pollmann, Frank, Zaletel, Michael P.
core   +3 more sources

The acute effect of maximal voluntary isometric contraction pull on start gate performance of snowboard and ski cross athletes [PDF]

open access: yes, 2016
This study investigated whether adding a maximal voluntary isometric contraction to developing snowboard and ski cross athletes’ warm-up could reduce start time.
Gastin, PB   +2 more
core   +1 more source

Fatiguing Effects of Indirect Vibration Stimulation in Upper Limb Muscles- pre, post and during Isometric Contractions Superimposed on Upper Limb Vibration [PDF]

open access: yes, 2019
© 2019 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ , which permits unrestricted use, provided the original author and source are credited.Whole-body ...
Cardinale, Marco   +2 more
core   +3 more sources

Effects of different vibration frequencies, amplitudes and contraction levels on lower limb muscles during graded isometric contractions superimposed on whole body vibration stimulation [PDF]

open access: yes, 2018
Background: Indirect vibration stimulation, i.e., whole body vibration or upper limb vibration, has been investigated increasingly as an exercise intervention for rehabilitation applications.
Bovenzi M   +5 more
core   +3 more sources

An electrooptical muscle contraction sensor [PDF]

open access: yes, 2010
An electrooptical sensor for the detection of muscle contraction is described. Infrared light is injected into the muscle, the backscattering is observed, and the contraction is detected by measuring the change, that occurs during muscle contraction ...
A Gelmetti   +10 more
core   +2 more sources

Voluntary activation of human knee extensors measured using transcranial magnetic stimulation [PDF]

open access: yes, 2009
The aim of this study was to determine the applicability and reliability of a transcranial magnetic stimulation twitch interpolation technique for measuring voluntary activation of a lower limb muscle group.
Goodall, Stuart, Romer, Lee, Ross, Emma
core   +1 more source

Brain Areas Associated with Force Steadiness and Intensity During Isometric Ankle Dorsiflexion in Men and Women [PDF]

open access: yes, 2014
Although maintenance of steady contractions is required for many daily tasks, there is little understanding of brain areas that modulate lower limb force accuracy.
Hunter, Sandra K.   +3 more
core   +2 more sources

Task‐specific strength increases after lower‐limb compound resistance training occurred in the absence of corticospinal changes in vastus lateralis [PDF]

open access: yes, 2020
Neural adaptations subserving strength increases have been shown to be task‐specific, but responses and adaptation to lower‐limb compound exercises such as the squat are commonly assessed in a single‐limb isometric task.
Angius, Luca   +10 more
core   +2 more sources

Extrapolation of time series of EMG power spectrum parameters in isometric endurance tests of trunk extensor muscles [PDF]

open access: yes, 1998
The aim of the present study was to test the viability of using short isometric contractions of trunk extensor muscles to perform an assessment of their endurance capacity. To this aim two types of analysis were performed.
Bunkens, H.   +2 more
core   +1 more source

Standard noncommuting and commuting dilations of commuting tuples [PDF]

open access: yes, 2002
We introduce a notion called `maximal commuting piece' for tuples of Hilbert space operators. Given a commuting tuple of operators forming a row contraction there are two commonly used dilations in multivariable operator theory.
Bhat, B. V. Rajarama   +2 more
core   +3 more sources

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