The effects of mental fatigue on muscular endurance performance and neuromuscular activation in division III female athletes

Location

Hopwood Auditorium

Access Type

Campus Access Only

Start Date

4-17-2024 1:45 PM

End Date

4-17-2024 2:00 PM

College

College of Health Sciences

Department

Exercise Physiology

Keywords

mental fatigue, Stroop test, muscular endurance, EMG, neuromuscular activation

Abstract

Mental fatigue is a state that is characterized by psychological and physical symptoms brought about by high cognitive-demand tasks and can develop in response to chronic psychological stress. This study seeks to investigate the effect that mental fatigue can have on performance measures and outcomes. Previous studies have demonstrated the effect that mental fatigue can have on attenuating isometric contraction and aerobic performance outcomes, but minimal research has been conducted regarding muscular endurance and aerobic power. The minimal studies conducted investigating these outcomes as they relate to mental fatigue failed to demonstrate any significant effect. The present study had six female participants who completed two experimental visits using a single-blind, within-subject, randomized, cross-over design. During each visit they completed a thirty-minute bike ride at 40% of their VO2max, while completing either a high- or low-cognitive demand task, followed by a to-failure leg press test at 50% of their 1RM, followed by a maximal midthigh pull test with EMG analysis. Data collection is currently being conducted, after which a Paired Sample T-Test will be used to analyze the results. The purpose of the study is to determine the potential effect of mental fatigue using a STROOP test on muscular endurance during to-failure resistance training testing, and subsequent neuromuscular activation and rate of force development.

Faculty Mentor(s)

Dr. Sean Collins Dr. Jeffery Herrick Dr. Price Blair

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Apr 17th, 1:45 PM Apr 17th, 2:00 PM

The effects of mental fatigue on muscular endurance performance and neuromuscular activation in division III female athletes

Hopwood Auditorium

Mental fatigue is a state that is characterized by psychological and physical symptoms brought about by high cognitive-demand tasks and can develop in response to chronic psychological stress. This study seeks to investigate the effect that mental fatigue can have on performance measures and outcomes. Previous studies have demonstrated the effect that mental fatigue can have on attenuating isometric contraction and aerobic performance outcomes, but minimal research has been conducted regarding muscular endurance and aerobic power. The minimal studies conducted investigating these outcomes as they relate to mental fatigue failed to demonstrate any significant effect. The present study had six female participants who completed two experimental visits using a single-blind, within-subject, randomized, cross-over design. During each visit they completed a thirty-minute bike ride at 40% of their VO2max, while completing either a high- or low-cognitive demand task, followed by a to-failure leg press test at 50% of their 1RM, followed by a maximal midthigh pull test with EMG analysis. Data collection is currently being conducted, after which a Paired Sample T-Test will be used to analyze the results. The purpose of the study is to determine the potential effect of mental fatigue using a STROOP test on muscular endurance during to-failure resistance training testing, and subsequent neuromuscular activation and rate of force development.