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.

Changes in cortical excitability and blood lactate after a fatiguing hand-grip exercise / M. Coco, G. Alagona, V. Perciavalle, V. Perciavalle, P. Cavallari, A. Caronni. - In: SOMATOSENSORY & MOTOR RESEARCH. - ISSN 0899-0220. - 31:1(2014 Mar), pp. 35-39. [10.3109/08990220.2013.834816]

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

P. Cavallari;A. Caronni
2014-03

Abstract

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.
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 BIO/09 - Fisiologia
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/246028
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