The effect of paired associative stimulation on fatigue resistance
| Autor: | Vesa Linnamo, Sinikka Peurala, Jussi Peltonen, Andrew G. Cresswell, Markus Gruber, Janne Avela, Susanne Kumpulainen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male paired associative stimulation medicine.medical_treatment Stimulation Isometric exercise ta3112 Young Adult Paired associative stimulation Fatigue resistance motor cortex transcranial magnetic stimulation medicine Humans ddc:796 Muscle Skeletal ta315 skin and connective tissue diseases Soleus muscle Neuronal Plasticity General Neuroscience Healthy subjects Fatigue Central fatigue Motor cortex Transcranial magnetic stimulation General Medicine Evoked Potentials Motor central fatigue medicine.anatomical_structure Muscle Fatigue Female fatigue sense organs Psychology Neuroscience |
| Popis: | Paired associative stimulation (PAS) is a non-invasive stimulation method developed to induce bidirectional changes in the excitability of the cortical projections to the target muscles. However, very few studies have shown an association between changes in motor evoked potentials (MEP) after PAS and behavioral changes in healthy subjects. In the present study we hypothesized that the functional relevance of PAS can be seen during fatiguing exercise, since there is always a central contribution to the development of fatigue. Transcranial magnetic stimulation was applied over the motor cortex to measure changes in the MEPs of the soleus muscle before and after PAS. Furthermore, fatigue resistance was tested during 15s sustained maximal isometric contractions before and after PAS. On average, fatigue resistance did not change after PAS, however the change in excitability correlated significantly with the change in fatigue resistance. Discussion: Functionality of PAS intervention was not demonstrated in this study. However, the observed relationship between excitability and fatigue resistance suggests that PAS might have affected central fatigue during short maximal contractions. (C) 2015 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved. |
| Databáze: | OpenAIRE |
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