Excitability of primary hand motor cortex (PHMC), evaluated with transcranial magnetic stimulation by using the "1mV resting motor threshold" method, and capillary blood lactate were measured at the end, as well as 5 and 10min after a fatiguing hand-grip exercise. The relation between blood lactate and the amplitudes of motor-evoked potentials showed a significant direct proportionality. Blood lactate seems to exert a protective role on PHMC against fatigue reduction during extremely intensive isometric exercises.
|Titolo:||Changes in cortical excitability and blood lactate after a fatiguing hand-grip exercise|
CARONNI, ANTONIO (Penultimo)
|Parole Chiave:||Blood lactate; Central fatigue; Exhaustion; Man; Motor cortex; Transcranial magnetic stimulation; Adult; Cerebral Cortex; Evoked Potentials, Motor; Humans; Isometric Contraction; Lactic Acid; Male; Muscle Fatigue; Transcranial Magnetic Stimulation; Hand Strength; Physiology; Sensory Systems|
|Settore Scientifico Disciplinare:||Settore BIO/09 - Fisiologia|
|Data di pubblicazione:||mar-2014|
|Digital Object Identifier (DOI):||10.3109/08990220.2013.834816|
|Appare nelle tipologie:||01 - Articolo su periodico|