European Journal of Applied Physiology

, Volume 114, Issue 5, pp 1095–1105

Response inhibition impairs subsequent self-paced endurance performance

Authors

  • Benjamin Pageaux
    • Endurance Research Group, School of Sport and Exercise SciencesUniversity of Kent at Medway
  • Romuald Lepers
    • Laboratoire INSERM U1093, Faculté des Sciences du SportsUniversité de Bourgogne-UFR STAPS
  • Kristina C. Dietz
    • Endurance Research Group, School of Sport and Exercise SciencesUniversity of Kent at Medway
    • Endurance Research Group, School of Sport and Exercise SciencesUniversity of Kent at Medway
Original Article

DOI: 10.1007/s00421-014-2838-5

Cite this article as:
Pageaux, B., Lepers, R., Dietz, K.C. et al. Eur J Appl Physiol (2014) 114: 1095. doi:10.1007/s00421-014-2838-5

Abstract

Purpose

The aim of this study was to test the effects of mental exertion involving response inhibition on pacing and endurance performance during a subsequent 5-km running time trial.

Methods

After familiarization, 12 physically active subjects performed the time trial on a treadmill after two different cognitive tasks: (i) an incongruent Stroop task involving response inhibition (inhibition task) and (ii) a congruent Stroop task not involving response inhibition (control task). Both cognitive tasks were performed for 30 min.

Results

Neither the inhibition nor the control task induced subjective feelings of mental fatigue. Nevertheless, time trial performance was impaired following the inhibition task (24.4 ± 4.9 min) compared to the control task (23.1 ± 3.8 min) because of a significant reduction in average running speed chosen by the subject. The response inhibition task did not affect pacing strategy, which was negative in both conditions. Heart rate and blood lactate responses to the time trial were not affected by the inhibition task, but subjects rated perceived exertion higher compared to the control condition (13.5 ± 1.3 vs 12.4 ± 1.3).

Conclusion

These findings show for the first time that 30 min of mental exertion involving response inhibition reduces subsequent self-paced endurance performance despite no overt mental fatigue. The impairment in endurance performance observed after the incongruent Stroop task seems to be mediated by the higher perception of effort as predicted by the psychobiological model of endurance performance.

Keywords

Perception of effort Time trial Mental fatigue Running Cognitive task Stroop task

Abbreviations

ACC

Anterior cingulate cortex

ANOVA

Analysis of variance

HR

Heart rate

RPE

Rating of perceived exertion

Copyright information

© Springer-Verlag Berlin Heidelberg 2014