Results 211 to 220 of about 552,445 (261)
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Journal of Strength and Conditioning Research, 2005
The purpose of this investigation was to compare the effects of stretching vs. potentiation on subsequent maximal force and rate of force development capabilities of subjects in an isometric squat. Ten male collegiate athletes participated as subjects in this study.
David M, Bazett-Jones +2 more
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The purpose of this investigation was to compare the effects of stretching vs. potentiation on subsequent maximal force and rate of force development capabilities of subjects in an isometric squat. Ten male collegiate athletes participated as subjects in this study.
David M, Bazett-Jones +2 more
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Eccentric rate of force development determines jumping performance
Computer Methods in Biomechanics and Biomedical Engineering, 2013Critical information can be directly extracted from the force–time (F–T) curve during the vertical countermovement jump (CMJ), such as time variables, force variables and variables linking both com...
G, Laffaye, P, Wagner
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Neuromuscular rate of force development deficit in Parkinson disease
Clinical Biomechanics, 2017Bradykinesia and reduced neuromuscular force exist in Parkinson disease. The interpolated twitch technique has been used to evaluate central versus peripheral manifestations of neuromuscular strength in healthy, aging, and athletic populations, as well as moderate to advanced Parkinson disease, but this method has not been used in mild Parkinson ...
Kelley G. Hammond +3 more
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Sports-Related Motor Processing at Different Rates of Force Development
Journal of Motor Behavior, 2022How does our brain manage to process vast quantities of sensory information that define movement performance? By extracting the required movement parameters for which brain dynamics are, inter alia, assumed to be functionally related to, we used electroencephalography to investigate motor-related brain oscillations.
Nils, Flüthmann +4 more
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The Role of Rate of Force Development on Vertical Jump Performance
Journal of Strength and Conditioning Research, 2011The purpose of this study was to examine a) the relationship between rate of force development (RFD) and vertical jump (VJ) performance during a counter movement jump (CMJ), and b) the reliability of RFD recorded during the CMJ and squat jump (SJ) forms of the VJ.
McLellan, Christopher P. +2 more
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Effects of Rate of Force Development on EMG Amplitude and Frequency
International Journal of Sports Medicine, 2005The purpose of this study was to compare the amplitude and frequency of the gastrocnemius EMG during ramp and ballistic contractions in highly trained sprint athletes. Sixteen female sprinters performed ramp and ballistic isometric contractions on a Biodex dynamometer.
M D, Ricard +6 more
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Analysis of Rate of Force Development as a Vertical Jump Height Predictor
Research Quarterly for Exercise and Sport, 2022Purpose: Many researchers and coaches hold that the ability to generate force rapidly is an important factor in athletic performance. This concept is often studied by analyzing the rate of ground reaction force development (RFD) during vertical jumps; however, many such studies disagree on whether estimates of RFD are true predictors of vertical jump ...
Jonathan D. Miller +3 more
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Assessment of the rate of force development scaling factor for the hip muscles
Muscle & Nerve, 2014ABSTRACTIntroduction: The aim of this study was to evaluate test feasibility, validity, and reproducibility of the rate of force development scaling factor (RFD‐SF) for the hip muscles.Methods: Feasibility was assessed as the testing compliance, validity as the ability to compute the RFD‐SF from a linear regression, and reproducibility with a test ...
Casartelli, Nicola C. +2 more
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Fractionated Reaction Time and the Rate of Force Development
The Quarterly Journal of Experimental Psychology Section A, 1988The relationship between the rate of force development and components of fractionated reaction time were investigated in the present study. Subjects ( N=9) were administered extensive practice before being required to produce 98N of isometric force on a hand dynamometer at a maximal rate, at 20% slower than maximal, and at 40% slower than maximal ...
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Journal of Electromyography and Kinesiology, 2019
The purpose was to examine the relationship between the rate of neural excitation (rate of rise in the electromyogram, EMG) and the rate of isometric force development (RFD) to determine whether surface EMG measures can detect nonlinearity that is expected due to underlying motor unit discharge behavior and the summation of progressively larger motor ...
Micah D, Josephson +2 more
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The purpose was to examine the relationship between the rate of neural excitation (rate of rise in the electromyogram, EMG) and the rate of isometric force development (RFD) to determine whether surface EMG measures can detect nonlinearity that is expected due to underlying motor unit discharge behavior and the summation of progressively larger motor ...
Micah D, Josephson +2 more
openaire +2 more sources