The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women
The purpose of this study was to examine the effect of a mentally fatiguing task on neuromuscular function in young and older women. Neuromuscular measures were obtained prior to and following 20 minutes of a mentally fatiguing task. Maximal force output significantly decreased after the mental fati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Brain Sciences |
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| Online Access: | https://www.mdpi.com/2076-3425/10/4/191 |
| _version_ | 1818250191304654848 |
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| author | Amanda J. Morris Anita D. Christie |
| author_facet | Amanda J. Morris Anita D. Christie |
| author_sort | Amanda J. Morris |
| collection | DOAJ |
| description | The purpose of this study was to examine the effect of a mentally fatiguing task on neuromuscular function in young and older women. Neuromuscular measures were obtained prior to and following 20 minutes of a mentally fatiguing task. Maximal force output significantly decreased after the mental fatigue task (<i>p</i><i> </i>= 0.02) and this was not different between age groups (<i>p</i><i> </i>= 0.32). Increases in cortical silent period duration approached significance in both young and older groups (<i>p</i><i> </i>= 0.06), suggesting that mental fatigue may cause increased cortical inhibition. Measures of peripheral neuromuscular function (contractile properties of the muscle, M-wave) did not change (<i>p</i><i> </i><i>≥</i><i> </i>0.09), suggesting that changes in force production with mental fatigue are more likely due to supraspinal than peripheral mechanisms. These findings provide further evidence of an interaction between mental fatigue and physical function. |
| first_indexed | 2024-12-12T15:48:28Z |
| format | Article |
| id | doaj.art-39687bcda5bd41a995b98193030f160b |
| institution | Directory Open Access Journal |
| issn | 2076-3425 |
| language | English |
| last_indexed | 2024-12-12T15:48:28Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Brain Sciences |
| spelling | doaj.art-39687bcda5bd41a995b98193030f160b2022-12-22T00:19:41ZengMDPI AGBrain Sciences2076-34252020-03-0110419110.3390/brainsci10040191brainsci10040191The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older WomenAmanda J. Morris0Anita D. Christie1Department of Human Physiology, University of Oregon, Eugene, OR 97401, USADepartment of Human Physiology, University of Oregon, Eugene, OR 97401, USAThe purpose of this study was to examine the effect of a mentally fatiguing task on neuromuscular function in young and older women. Neuromuscular measures were obtained prior to and following 20 minutes of a mentally fatiguing task. Maximal force output significantly decreased after the mental fatigue task (<i>p</i><i> </i>= 0.02) and this was not different between age groups (<i>p</i><i> </i>= 0.32). Increases in cortical silent period duration approached significance in both young and older groups (<i>p</i><i> </i>= 0.06), suggesting that mental fatigue may cause increased cortical inhibition. Measures of peripheral neuromuscular function (contractile properties of the muscle, M-wave) did not change (<i>p</i><i> </i><i>≥</i><i> </i>0.09), suggesting that changes in force production with mental fatigue are more likely due to supraspinal than peripheral mechanisms. These findings provide further evidence of an interaction between mental fatigue and physical function.https://www.mdpi.com/2076-3425/10/4/191mental fatigueneuromuscular functionaging |
| spellingShingle | Amanda J. Morris Anita D. Christie The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women Brain Sciences mental fatigue neuromuscular function aging |
| title | The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women |
| title_full | The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women |
| title_fullStr | The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women |
| title_full_unstemmed | The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women |
| title_short | The Effect of Mental Fatigue on Neuromuscular Function is Similar in Young and Older Women |
| title_sort | effect of mental fatigue on neuromuscular function is similar in young and older women |
| topic | mental fatigue neuromuscular function aging |
| url | https://www.mdpi.com/2076-3425/10/4/191 |
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