Results 241 to 250 of about 67,475 (271)
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Post-activation potentiation and the kindling phenomenon
Electroencephalography and Clinical Neurophysiology, 1975Potentials evoked in the hippocampus and preoptic region of rats by single biphasic pulses applied to the amygdala were compared during recruiting, after post-tetanic potentiation (PTP) and after amygdaloid kindling. The same components were enhanced temporarily by recruiting and PTP as were enhanced permanently by kindling.
R, Racine, F, Newberry, W M, Burnham
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Sports Medicine, 2005
The response of muscle to volitional or electrically induced stimuli is affected by its contractile history. Fatigue is the most obvious effect of contractile history reflected by the inability of a muscle to generate an expected level of force. However, fatigue can coexist with post-activation potentiation (PAP), which serves to improve muscular ...
Matt, Hodgson +2 more
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The response of muscle to volitional or electrically induced stimuli is affected by its contractile history. Fatigue is the most obvious effect of contractile history reflected by the inability of a muscle to generate an expected level of force. However, fatigue can coexist with post-activation potentiation (PAP), which serves to improve muscular ...
Matt, Hodgson +2 more
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The effect of post-activation potentiation in the sprint in freestyle
International Seven Journal of Multidisciplinary, 2023Post-Activation Potentialization (PPA) is defined as an acute improvement in muscle function after stimulation. Different variables of PPA protocols can affect performance, such as the duration, the type of stimulus, the level of training of the requirements and the time interval between the conditioning activity and the specific activity.
Ruana Serique Beija +3 more
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Post-activation potentiation and potentiated motor unit firing patterns in boys and men
European Journal of Applied Physiology, 2023Post-activation potentiation (PAP) describes the enhancement of twitch torque following a conditioning contraction (CC) in skeletal muscle. In adults, PAP may be related to muscle fibre composition and is accompanied by a decrease in motor unit (MU) firing rates (MUFRs).
Andrew McKiel +4 more
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Post-activation potentiation in the neocortex: I. Acute preparations
Brain Research, 1994Long-term potentiation is widely studied as a memory model, and has been demonstrated in a number of subcortical sites in both acute and chronic preparations. In the neocortex, however, most of the demonstrations of LTP have been in neocortical slice or acute preparations, and even these have often required a drug-induced attenuation of inhibition ...
R J, Racine +3 more
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Post‐activation potentiation (PAP) in endurance sports: A review
European Journal of Sport Science, 2018AbstractWhile there is strong support of the usefulness of post‐activation potentiation (PAP) phenomenon in power demanding sports, the role that PAP could play in endurance sports has received less attention. The aim of this review is to present evidence for a better understanding of PAP in endurance athletes; and to discuss the physiological basis ...
Boullosa, Daniel +3 more
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The postnatal development of post-activation potentiation in the rat neocortex
Developmental Brain Research, 1983The postnatal development of short-term potentiation (STP) and long-term potentiation (LTP) of the transcallosal response (TCR) was examined in anesthetized rats, aged 7 days (PN7) to adult (greater than or equal to PN180). Stimulation of callosal fibers produced a biphasic, positive-negative TCR recorded at the surface of the anterior neocortex in all
D A, Wilson, R J, Racine
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Optimization of post-activation potentiation in girls and women
European Journal of Applied PhysiologyMaximal conditioning contractions (CCs) can lead to the enhancement of evoked-twitch characteristics in human skeletal muscle. This phenomenon is termed post-activation potentiation (PAP). In the knee extensors, PAP is greater in men compared with boys. In adults, the optimal CC duration for PAP is ~ 10 s.
Andrew McKiel +5 more
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Brain Research, 1995
Previous experiments have shown the neocortex to be very resistant to the induction of long-term potentiation in chronic preparations. We show here that kindling-induced potentiation effects can be reliably produced in the neocortex of awake, freely moving rats. These effects develop rather slowly.
R J, Racine +3 more
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Previous experiments have shown the neocortex to be very resistant to the induction of long-term potentiation in chronic preparations. We show here that kindling-induced potentiation effects can be reliably produced in the neocortex of awake, freely moving rats. These effects develop rather slowly.
R J, Racine +3 more
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Post-activation potentiation in the neocortex of awake freely moving rats
Neuroscience & Biobehavioral Reviews, 1998The search for the cellular processes that underlie information storage within neuronal systems lead to the development of two models of post-activation potentiation, long-term potentiation (LTP) and kindling. Both models give rise to a long-lasting increase in synaptic strength and altered unit discharge patterns.
G C, Teskey, P A, Valentine
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