Evaluation of Central Fatigue by the Critical Flicker Fusion Threshold in Cyclists

  • Vicente Javier Clemente-SuárezEmail author
  • Montaña Diaz-Manzano
Education & Training
Part of the following topical collections:
  1. Technological Innovations in Biomedical Training and Practice (TEEM 2018)


Central fatigue related in sport stimuli was studied by Critical Flicker Fusion Threshold (CFFT) to know the influence of exercise on the central nervous system (CNS), but there is a lack of knowledge about the central or peripheral fatigue in endurance events. This study aimed to analyze changes in CFFT before and after the incremental cycle ergometer test as a means to assess the fatigue of the CNS. CFFT ascending and descending, the subjective criterion and sensory sensitivity were analysed in 8 professional male cyclists (72.1 ± 5.59 kg, 180.3 ± 6.43 cm, 17.4 ± 0.7 years) before and after a maximum incremental cycle ergometer test (start 50w increases 50w each 5 min). In this incremental test, the induced fatigue was probably more a peripheral phenomenon than one due to central nervous system fatigue, because sensory sensitivity did not significantly decrease. In conclusion, an incremental cycle ergometer test increased the cortical arousal and does not affect negatively the CNS of professional cyclists.


Cortical arousal Central nervous system Fatigue Flicker fusion threshold Cycle ergometer 




Compliance with Ethical Standards

Conflict of Interest


Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed Consent

Informed consent was obtained from all individual participants included in the study.


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of Sports SciencesUniversidad Europea de MadridVillaviciosa de OdónSpain
  2. 2.Grupo de Investigación en Cultura, Educación y SociedadUniversidad de la CostaBarranquillaColombia
  3. 3.Research Center in Applied Combat (CESCA)ToledoSpain

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