Excitability of primary hand motor cortex (PHMC), evaluated with transcranial magneticstimulation by using the ‘‘1mV resting motor threshold’’ method, and capillary blood lactatewere measured at the end, as well as 5 and 10 min after a fatiguing hand-grip exercise. Therelation between blood lactate and the amplitudes of motor-evoked potentials showed asignificant direct proportionality. Blood lactate seems to exert a protective role on PHMCagainst fatigue reduction during extremely intensive isometric exercises.

Changes in cortical excitability and blood lactate after a fatiguing hand-grip exercise

COCO, MARINELLA;PERCIAVALLE, VALENTINA;Perciavalle V;
2014

Abstract

Excitability of primary hand motor cortex (PHMC), evaluated with transcranial magneticstimulation by using the ‘‘1mV resting motor threshold’’ method, and capillary blood lactatewere measured at the end, as well as 5 and 10 min after a fatiguing hand-grip exercise. Therelation between blood lactate and the amplitudes of motor-evoked potentials showed asignificant direct proportionality. Blood lactate seems to exert a protective role on PHMCagainst fatigue reduction during extremely intensive isometric exercises.
blood lactate; cortical excitability; handgrip exercise
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/14360
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