Results 261 to 270 of about 2,079,695 (308)
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Post‐activation potentiation: The neural effects of post—activation depression
Muscle & Nerve, 2014ABSTRACTIntroduction: Our knowledge of the neurophysiology of post‐activation potentiation (PAP) is limited. The purpose of this study was to examine the effect of PAP on twitch torque and H‐reflex amplitude after a 10‐s maximal voluntary contraction (MVC).
Anthi, Xenofondos +6 more
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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
openaire +2 more sources
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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Mechanomyographic determination of post-activation potentiation in myopathies
Clinical Neurophysiology, 2006There is a need to provide an index of muscle contractility in evaluating myopathies especially in the clinical setting. This study was conducted to investigate if the mechanomyogram post-activation potentiation (MMG-PAP) can be used as an index of muscle contractile force potentiation (force-PAP), if it differs between normal and myopathic muscles ...
A R, Ng +5 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 (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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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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Activity-dependent activation of presynaptic protein kinase C mediates post-tetanic potentiation
Nature Neuroscience, 2003Vesicle exocytosis is mediated by the complex interaction between synaptic vesicle and plasma membrane proteins, many of which are substrates for protein kinases. Exogenous protein kinase activators increase release probability at several mammalian CNS synapses, but the physiological conditions under which presynaptic protein kinases become activated ...
Darrin H, Brager +2 more
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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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Post activation potentiation can be induced without impairing tendon stiffness
European Journal of Applied Physiology, 2014This study aimed to investigate conditioning effects from a single 6-s plantar flexion maximal voluntary isometric contraction (MVIC) on Achilles tendon stiffness (ATS) and twitch properties of the triceps surae in athletes.Peak twitch (PT), rate of torque development (RTD), rising time (RT₁₀₋₉₀%) and half relaxation time (HRT) were measured from ...
Paulo, Gago +3 more
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