Search results for "perception of effort"
showing 4 items of 4 documents
The effects of mental fatigue on sport-related performance
2018
International audience; Mental fatigue is known to increase subjective feelings of fatigue and to decrease cognitive performance, but its impact on physical performance remains poorly understood. The aim of this chapter was to review the results of 29 studies published between 2009 and April 2018 and focusing on the impact of mental fatigue on sport-related performance. Taken all studies together, it appears that mental fatigue impairs endurance performance, motor skills performance and decision-making performance. However, maximal force production is not reduced in the presence of mental fatigue. These observations suggest that mental fatigue impairs sport-related performance during exerci…
La fatigue mentale : marqueurs électrophysiologiques et stratégies de compensation
2021
Mental fatigue is a common phenomenon in modern society, causing an alteration in both cognitive and physical performances. It can lead to an increased risk of accidents, a drop in productivity, and certain disorders such as depression. The objective of this thesis work was to study this phenomenon of mental fatigue by investigating more specifically its electrophysiological markers, and to find compensatory strategies to limit and/or avoid its deleterious effects.The first study identified brain activity modulations during a prolonged modified Stroop task. An increase in theta and alpha waves, as well as a decrease in N100 and P300 amplitude reflecting a decrease in attention were observed…
Mental Fatigue Effects on the Produced Perception of Effort and Its Impact on Subsequent Physical Performances.
2022
The purpose of this study was to investigate the relationship between mental fatigue induced by a demanding cognitive task and impaired physical performance in endurance due to a higher perception of effort. A total of 12 healthy adults and volunteers, who had previously practiced endurance activities for 4 to 8 h per week, performed a one-hour cognitive task involving either the process of response inhibition (Stroop task) or not (visualization of a documentary as control task), then 20 min of pedaling on a cycle ergometer at a constant perception of effort while cardio-respiratory and neuromuscular functions were measured. The Stroop task induces subjective feelings of mental fatigue (vig…
Mental fatigue induced by prolonged self-regulation does not exacerbate central fatigue during subsequent whole-body endurance exercise
2015
International audience; It has been shown that the mental fatigue induced by prolonged self-regulation increases perception of effort and reduces performance during subsequent endurance exercise. However, the physiological mechanisms underlying these negative effects of mental fatigue are unclear. The primary aim of this study was to test the hypothesis that mental fatigue exacerbates central fatigue induced by whole-body endurance exercise. Twelve subjects performed 30 min of either an incongruent Stroop task to induce a condition of mental fatigue or a congruent Stroop task (control condition) in a random and counterbalanced order. Both cognitive tasks (CTs) were followed by a whole-body …