Acute high-intensity and moderate-intensity interval exercise do not change corticospinal excitability in low fit, young adults

Autoři: Jenin El-Sayes aff001;  Claudia V. Turco aff001;  Lauren E. Skelly aff001;  Mitchell B. Locke aff001;  Martin J. Gibala aff001;  Aimee J. Nelson aff001
Působiště autorů: Department of Kinesiology, McMaster University, Hamilton, Canada aff001
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article


Previous research has demonstrated a lack of neuroplasticity induced by acute exercise in low fit individuals, but the influence of exercise intensity is unclear. In the present study, we assessed the effect of acute high-intensity (HI) or moderate-intensity (MOD) interval exercise on neuroplasticity in individuals with low fitness, as determined by a peak oxygen uptake (VO2peak) test (n = 19). Transcranial magnetic stimulation (TMS) was used to assess corticospinal excitability via area under the motor evoked potential (MEP) recruitment curve before and following training. Corticospinal excitability was unchanged after HI and MOD, suggesting no effect of acute exercise on neuroplasticity as measured via TMS in sedentary, young individuals. Repeated bouts of exercise, i.e., physical training, may be required to induce short-term changes in corticospinal excitability in previously sedentary individuals.

Klíčová slova:

Electromyography – Exercise – Heart rate – Motor evoked potentials – Neuronal plasticity – Physical activity – Transcranial magnetic stimulation – Young adults


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